Supplementary information Maeorg - Amazon S3 · Supplementary Information Synthesis and spectral...
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Supplementary Information Synthesis and spectral data of heterocyclic hydrazine derivatives (1‐3) and saccharide hydrazones (4‐21) N‐aminopyrrolidine (1) In a 100 ml two‐necked flask, hydrazine hydrate (24.25 ml, 0.5 mol) was dissolved in 40 ml of methanol. Mixture was heated to reflux and 1,4‐dibromobutane (17.91 ml, 0.15 mol) was added dropwise within 1 h. Reaction mixture was left stirring at reflux for 24 h. Methanol was removed by fractional distillation. Residue was basified with 75 g of 40% NaOH and extracted 10 times with Et 2 O. Combined extracts were dried on anhydrous Na 2 SO 4 and filtrated. Solvent was removed under reduced pressure and the product was purified by vacuum distillation (bp 46 ˚C/30 mbar). This process yielded 6.374 g (49%) of N‐aminopyrrolidine, a clear colorless liquid. 1 H NMR (200 MHz, DMSO‐D 6 ): δ 2.47 – 2.54 (m, 4H, NCH 2 CH 2 ), 1.61 – 1.68 (m, 4H, NCH 2 CH 2 ). 13 C NMR (50 MHz, DMSO‐D 6 ) δ 58.71 (NCH 2 ), 21.94 (NCH 2 CH 2 ). N‐aminopiperidine (2) In a 100 ml two‐necked flask, hydrazine hydrate (14.55 ml, 0.3 mol) was dissolved in 25 ml of methanol. Solution was heated to reflux and 1,5‐dibromopentane (13.62 ml, 0.1 mol) was added dropwise within 1 h. Reaction mixture was left stirring at reflux for 24 h. Methanol was removed under reduced pressure and residue was basified with 40 g of 40% NaOH solution. Mixture was extracted 8 times with Et 2 O and combined extracts were dried on anhydrous Na 2 SO 4 and filtrated. Solvent was removed under reduced pressure (40 ˚C at 40 mbar). Process yielded 7.380 g (74%) of N‐aminopiperidine, a light yellow liquid, which was used in subsequent experiments without further purification. 1 H NMR (200 MHz, DMSO‐D 6 ): δ 2.38 – 2.43 (m, 4H, NCH 2 ), 1.49 (quint, J = 5.5 Hz, 4H, NCH 2 CH 2 ), 1.26 – 1.32 (m, 2H, NCH 2 CH 2 CH 2 ). 13 C NMR (50 MHz, DMSO‐D 6 ) δ 60.10 (NCH 2 ), 25.51 (NCH 2 CH 2 ), 23.02 (NCH 2 CH 2 CH 2 ). N‐aminoazepane (3) In a 500 ml two‐necked flask, hydrazine hydrate (24.25 ml, 0.5 mol) was dissolved in 360 ml of methanol. Solution was heated to reflux and 1,6‐dibromohexane (23.07 ml, 0.15 mol) was added dropwise within 1,5 h. After 24 h of stirring at reflux, the methanol was evaporated under reduced pressure. Residue was basified with 55 g of 40% NaOH solution and extracted 10 times with Et 2 O. Combined extracts were dried on anhydrous Na 2 SO 4 and filtrated. Solvent was removed under reduced pressure (40 ˚C at 25 mbar). Process yielded 7.695 g (45%) of N‐aminoazepane, a light yellow liquid, which was used in subsequent experiments without further purification. 1 H NMR (200 MHz, DMSO‐D 6 ): 2.65 – 2.69 (m, 4H, NCH 2 ), 1.51 – 1.55 (m, 8H, NCH 2 CH 2 CH 2 ). 13 C NMR (50 MHz, DMSO‐D 6 ) δ 61.87 (NCH 2 ), 25.99 (NCH 2 CH 2 CH 2 ), 25.50 (NCH 2 CH 2 ).
Transcript of Supplementary information Maeorg - Amazon S3 · Supplementary Information Synthesis and spectral...
SupplementaryInformation
Synthesis and spectral data of heterocyclic hydrazine derivatives (1‐3) andsaccharidehydrazones(4‐21)
N‐aminopyrrolidine(1)In a 100 ml two‐necked flask, hydrazine hydrate (24.25 ml, 0.5 mol) was dissolved in 40 ml of methanol.
Mixture was heated to reflux and 1,4‐dibromobutane (17.91 ml, 0.15 mol) was added dropwise within 1 h.
Reaction mixture was left stirring at reflux for 24 h. Methanol was removed by fractional distillation. Residue
was basified with 75 g of 40% NaOH and extracted 10 times with Et2O. Combined extracts were dried on
anhydrous Na2SO4 and filtrated. Solvent was removed under reduced pressure and the product was purified by
vacuum distillation (bp 46 ˚C/30 mbar). This process yielded 6.374 g (49%) of N‐aminopyrrolidine, a clear
colorless liquid.
1H NMR (200 MHz, DMSO‐D6): δ 2.47 – 2.54 (m, 4H, NCH2CH2), 1.61 – 1.68 (m, 4H, NCH2CH2).
13C NMR (50 MHz, DMSO‐D6) δ 58.71 (NCH2), 21.94 (NCH2CH2).
N‐aminopiperidine(2)In a 100 ml two‐necked flask, hydrazine hydrate (14.55 ml, 0.3 mol) was dissolved in 25 ml of methanol.
Solution was heated to reflux and 1,5‐dibromopentane (13.62 ml, 0.1 mol) was added dropwise within 1 h.
Reaction mixture was left stirring at reflux for 24 h. Methanol was removed under reduced pressure and
residue was basified with 40 g of 40% NaOH solution. Mixture was extracted 8 times with Et2O and combined
extracts were dried on anhydrous Na2SO4 and filtrated. Solvent was removed under reduced pressure (40 ˚C at
40 mbar). Process yielded 7.380 g (74%) of N‐aminopiperidine, a light yellow liquid, which was used in
subsequent experiments without further purification.
1H NMR (200 MHz, DMSO‐D6): δ 2.38 – 2.43 (m, 4H, NCH2), 1.49 (quint, J = 5.5 Hz, 4H, NCH2CH2), 1.26 – 1.32 (m,
2H, NCH2CH2CH2).
13C NMR (50 MHz, DMSO‐D6) δ 60.10 (NCH2), 25.51 (NCH2CH2), 23.02 (NCH2CH2CH2).
N‐aminoazepane(3)In a 500 ml two‐necked flask, hydrazine hydrate (24.25 ml, 0.5 mol) was dissolved in 360 ml of methanol.
Solution was heated to reflux and 1,6‐dibromohexane (23.07 ml, 0.15 mol) was added dropwise within 1,5 h.
After 24 h of stirring at reflux, the methanol was evaporated under reduced pressure. Residue was basified
with 55 g of 40% NaOH solution and extracted 10 times with Et2O. Combined extracts were dried on anhydrous
Na2SO4 and filtrated. Solvent was removed under reduced pressure (40 ˚C at 25 mbar). Process yielded 7.695 g
(45%) of N‐aminoazepane, a light yellow liquid, which was used in subsequent experiments without further
purification.
1H NMR (200 MHz, DMSO‐D6): 2.65 – 2.69 (m, 4H, NCH2), 1.51 – 1.55 (m, 8H, NCH2CH2CH2).
13C NMR (50 MHz, DMSO‐D6) δ 61.87 (NCH2), 25.99 (NCH2CH2CH2), 25.50 (NCH2CH2).
(2S,3R,4S)‐5‐(pyrrolidin‐1‐ylimino)pentane‐1,2,3,4‐tetrol(4)
In a 100 ml flask, N‐aminopyrrolidine (688 mg, 8 mmol) was dissolved in 15 ml of methanol. L‐arabinose (750
mg, 5 mmol) was added and the mixture was stirred at the methanol reflux. After 3 h of stirring the reaction
was complete according to the TLC. Volatiles were removed under reduced pressure and the residue was
recrystallized in MTBE‐ethanol 1:1 mixture. Process yielded white crystals (1011 mg, 4.64 mmol, 93%) which
were dried further in vacuum.
FTIR ν (cm‐1): 3289, 2925, 2846, 1595, 1392, 1340, 1330, 1290, 1212, 1073, 1037, 1012.
1H NMR (700 MHz, DMSO‐D6): δ 6.51 (d, J = 6.2 Hz, 1H, CH=N), 4.59 (d, J = 6.0 Hz, 1H, OH‐2), 4.53 (d, J = 5.7 Hz,
1H, OH‐4), 4.42 (d, J = 7.1 Hz, 1H, OH‐3), 4.34 (t, J = 5.7 Hz, 1H, OH‐5), 4.17 (td, J = 6.0, 2.5 Hz, 1H, CH‐2), 3.56
(ddd, J = 11.0, 5.6, 3.4 Hz, 1H, CH‐5), 3.47 – 3.49 (m, 1H, CH‐4), 3.37 – 3.39 (m, 1H, CH‐5’), 3.29 (td, J = 7.6, 2.5
Hz, 1H, CH‐3), 3.02 – 3.04 (m, 4H, NCH2), 1.79 – 1.81 (m, 4H, NCH2CH2).
13C NMR (176 MHz, DMSO‐D6) δ 137.60 (C=N), 73.75 (C‐3), 71.25 (C‐4), 70.56 (C‐2), 63.38 (C‐5), 50.64 (NCH2),
22.60 (NCH2CH2).
HRMS (ESI): [M+H+]: calculated 219.13393 Da, determined 219.13300 Da.
(2S,3R,4S)‐5‐(piperidin‐1‐ylimino)pentane‐1,2,3,4‐tetrol(5)
In a 100 ml flask, N‐aminopiperidine (800 mg, 8 mmol) was dissolved in 15 ml of methanol. L‐arabinose (750
mg, 5 mmol) was added and the mixture was stirred at the methanol reflux. After 3.5 h of stirring the reaction
was complete according to the TLC. Volatiles were removed under reduced pressure and the residue was
recrystallized in MTBE‐ethanol 1:1 mixture. Process yielded white crystals (984 mg, 4.24 mmol, 85%) which
were dried further in vacuum.
FTIR ν (cm‐1): 3250, 2942, 2920, 2840, 2807, 1612, 1444, 1397, 1378, 1260, 1247, 1150, 1077, 1029.
1H NMR (700 MHz, DMSO‐D6) δ 6.86 (d, J = 5.9 Hz, 1H, CH=N), 4.62 (d, J = 6.0 Hz, 1H, OH‐2), 4.53 (d, J = 5.7 Hz,
1H, OH‐4), 4.43 (d, J = 7.1 Hz, 1H, OH‐3), 4.32 (t, J = 5.7 Hz, 1H, OH‐5), 4.21 (td, J = 5.9, 2.3 Hz, 1H, CH‐2), 3.57
(ddd, J = 11.0, 5.7, 3.3 Hz, 1H, CH‐5), 3.47 – 3.50 (m, 1H, CH‐4), 3.37 – 3.40 (m, 1H, CH‐5’), 3.30 (td, J = 8.2, 2.4
Hz, 1H, CH‐3), 2.86 (oct, J = 6.4 Hz, 4H, NCH2), 1.59 (quint, J = 5.6 Hz, 4H, NCH2CH2), 1.41 – 1.44 (m, 2H,
NCH2CH2CH2).
13C NMR (176 MHz, DMSO‐D6) δ 139.34 (C=N), 73.69 (C‐3), 71.16 (C‐4), 70.67 (C‐2), 63.39 (C‐5), 51.58 (NCH2),
24.56 (NCH2CH2), 23.68 (NCH2CH2CH2).
HRMS (ESI): [M+H+]: calculated 233.14958 Da, determined 233.14923 Da.
(2S,3R,4S)‐5‐(azepan‐1‐ylimino)pentane‐1,2,3,4‐tetrol(6)
In a 100 ml flask, N‐aminoazepane (912 mg, 8 mmol) was dissolved in 15 ml of methanol. L‐arabinose (750 mg,
5 mmol) was added and the mixture was stirred at the methanol reflux. After 3 h of stirring the reaction was
complete according to the TLC. Volatiles were removed under reduced pressure and the residue was
recrystallized in MTBE‐ethanol 1:1 mixture. Process yielded off‐white crystals (1050 mg, 4.27 mmol, 85%)
which were dried further in vacuum.
FTIR ν (cm‐1): 3269, 2917, 2848, 1593, 1442, 1382, 1361, 1312, 1229, 1209, 1124, 1068, 1035.
1H NMR (700 MHz, DMSO‐D6) δ 6.42 (d, J = 6.2 Hz, 1H, CH=N), 4.51 (dd, J = 5.8, 3.3 Hz, 2H, OH‐2, OH‐4), 4.36 (d,
J = 7.0 Hz, 1H, OH‐3), 4.31 (t, J = 5.7 Hz, 1H, OH‐5), 4.18 (td, J = 5.9, 2.5 Hz, 1H, CH‐2), 3.57 (ddd, J = 11.0, 5.6,
3.4 Hz, 1H, CH‐5), 3.46 – 3.50 (m, 1H, CH‐4), 3.37 – 3.40 (m, 1H, CH‐5’), 3.28 (td, J = 7.9, 2.5 Hz, 1H, CH‐3), 3.25
(t, J = 5.7 Hz, 4H, NCH2), 1.61 – 1.65 (m, 4H, NCH2CH2), 1.47 – 1.50 (m, 4H, NCH2CH2CH2).
13C NMR (176 MHz, DMSO‐D6) δ 131.30 (C=N), 73.92 (C‐3), 71.36 (C‐4), 70.79 (C‐2), 63.37 (C‐5), 52.45 (NCH2),
27.70 (NCH2CH2CH2), 26.68 (NCH2CH2).
HRMS (ESI): [M+H+]: calculated 247.16523 Da, determined 247.16497 Da.
(2R,3S,4R,5S)‐6‐(pyrrolidin‐1‐ylimino)hexane‐1,2,3,4,5‐pentol(7)
In a 100 ml flask, N‐aminopyrrolidine (688 mg, 8 mmol) was dissolved in 15 ml of methanol. D‐galactose (900
mg, 5 mmol) was added and the mixture was stirred at the methanol reflux. After 4 h of stirring the reaction
was complete according to the TLC. Volatiles were removed under reduced pressure and the residue was
recrystallized in MTBE‐ethanol 1:3 mixture. Process yielded white crystals (1194 mg, 4.81 mmol, 96%) which
were dried further in vacuum.
FTIR ν (cm‐1): 3370, 3259, 2934, 2831, 1598, 1412, 1334, 1284, 1219, 1132, 1101, 1070, 1052, 1011.
1H NMR (700 MHz, DMSO‐D6) δ 6.55 (d, J = 6.1 Hz, 1H, CH=N), 4.51 (d, J = 6.4 Hz, 1H, OH‐2), 4.42 (t, J = 6.2, 1H,
OH‐6), 4.31 (d, J = 7.4 Hz, 1H, OH‐3), 4.23 (td, J = 6.2, 1.8 Hz, 1H, CH‐2), 4.12 – 4.13 (m, 2H, OH‐4, OH‐5), 3.70
(qd, J = 6.5, 1.5 Hz, 1H, CH‐5), 3.48 (ddd, J = 9.2, 7.6, 1.5 Hz, 1H, CH‐4), 3.36 – 3.44 (m, 3H, CH‐3, CH‐6, CH‐6’),
3.03 – 3.04 (m, 4H, NCH2), 1.79 – 1.81 (m, 4H, NCH2CH2).
13C NMR (176 MHz, DMSO‐D6) δ 138.10 (C=N), 72.52 (C‐3), 70.48 (C‐2), 69.98 (C‐5), 69.27 (C‐4), 63.10 (C‐6),
50.70 (NCH2), 22.61 (NCH2CH2).
HRMS (ESI): [M+H+]: calculated 249.14450 Da, determined 249.14414 Da.
(2R,3S,4R,5S)‐6‐(piperidin‐1‐ylimino)hexane‐1,2,3,4,5‐pentol(8)
In a 100 ml flask, N‐aminopiperidine (800 mg, 8 mmol) was dissolved in 15 ml of methanol. D‐galactose (900
mg, 5 mmol) was added and the mixture was stirred at the methanol reflux. After 4.5 h of stirring the reaction
was complete according to the TLC. Volatiles were removed under reduced pressure and the residue was
recrystallized in MTBE‐ethanol 1:1 mixture. Process yielded white crystals (1005 mg, 3.84 mmol, 77%) which
were dried further in vacuum.
FTIR ν (cm‐1): 3270, 2933, 2852, 2815, 1608, 1378, 1342, 1211, 1075, 1064, 1031.
1H NMR (700 MHz, DMSO‐D6) δ 6.89 (d, J = 5.8 Hz, 1H, CH=N), 4.55 (d, J = 6.4 Hz, 1H, OH‐2), 4.45 (t, J = 5.7 Hz,
1H, OH‐6), 4.35 (d, J = 7.4 Hz, 1H, OH‐3), 4.25 (td, J = 6.1, 1.9 Hz, 1H, CH‐2), 4.15 (t, J = 7.1 Hz, 2H, OH‐4, OH‐5),
3.70 (qd, J = 6.5, 1.4 Hz, 1H, CH‐5), 3.49 (ddd, J = 9.2, 7.6, 1.4 Hz, 1H, CH‐4), 3.42 – 3.44 (m, 1H, CH‐3), 3.35 –
3.40 (m, 2H, CH‐6, CH‐6’), 2.84 – 2.88 (m, 4H, NCH2), 1.59 (quint, J = 5.7 Hz, 4H, NCH2CH2), 1.40 – 1.44 (m, 2H,
NCH2CH2CH2).
13C NMR (176 MHz, DMSO‐D6) δ 139.74 (C=N), 72.46 (C‐3), 70.58 (C‐2), 69.93 (C‐5), 69.20 (C‐4), 63.10 (C‐6),
51.61 (NCH2), 24.58 (NCH2CH2), 23.69 (NCH2CH2CH2).
HRMS (ESI): [M+H+]: calculated 263.16015 Da, determined 263.15996 Da.
(2R,3S,4R,5S)‐6‐(azepan‐1‐ylimino)hexane‐1,2,3,4,5‐pentol(9)
In a 100 ml flask, N‐aminoazepane (912 mg, 8 mmol) was dissolved in 15 ml of methanol. D‐galactose (900 mg,
5 mmol) was added and the mixture was stirred at the methanol reflux. After 2 h of stirring the reaction was
complete according to the TLC. Volatiles were removed under reduced pressure and the residue was
recrystallized in MTBE‐ethanol 2:1 mixture. Process yielded white crystals (985 mg, 3.57 mmol, 71%) which
were dried further in vacuum.
FTIR ν (cm‐1): 3263, 2920, 2852, 1591, 1442, 1384, 1361, 1347, 1229, 1209, 1126, 1061, 1031, 1015.
1H NMR (700 MHz, DMSO‐D6) δ 6.46 (d, J = 6.2 Hz, 1H, CH=N), 4.43 – 4.45 (m, 2H, OH‐2, OH‐6), 4.28 (d, J = 7.4
Hz, 1H, OH‐3), 4.23 (td, J = 6.2, 1.9 Hz, 1H, CH‐2), 4.12 – 4.14 (m, 2H, OH‐4, OH‐5), 3.71 (qd, J = 6.5, 1.5 Hz, 1H,
CH‐5), 3.49 (ddd, J = 9.1, 7.6, 1.5 Hz, 1H, CH‐4), 3.36 – 3.43 (m, 3H, CH‐3, CH‐6, CH‐6’), 3.26 (t, J = 5.7 Hz, 4H,
NCH2), 1.61 – 1.66 (m, 4H, NCH2CH2), 1.46 – 1.51 (m, 4H, NCH2CH2CH2).
13C NMR (176 MHz, DMSO‐D6) δ 131.76 (C=N), 72.70 (C‐3), 70.69 (C‐2), 70.03 (C‐5), 69.37 (C‐4), 63.13 (C‐6),
52.48 (NCH2), 27.73 (NCH2CH2CH2), 26.71 (NCH2CH2).
HRMS (ESI): [M+H+]: calculated 277.17580 Da, determined 277.17510 Da.
(2R,3R,4R,5R)‐6‐(pyrrolidin‐1‐ylimino)hexane‐1,2,3,4,5‐pentol(10)
In a 100 ml flask, N‐aminopyrrolidine (688 mg, 8 mmol) was dissolved in 15 ml of methanol. D‐mannose (900
mg, 5 mmol) was added and the mixture was stirred at the methanol reflux. After 3.5 h of stirring the reaction
was complete according to the TLC. Volatiles were removed under reduced pressure and the residue was
recrystallized in MTBE‐ethanol 1:1 mixture. Process yielded white crystals (1147 mg, 4.63 mmol, 93%) which
were dried further in vacuum.
FTIR ν (cm‐1): 3259, 2946, 2933, 2872, 2844, 1608, 1443, 1393, 1379, 1336, 1314, 1265, 1205, 1083, 1061, 1028.
1H NMR (700 MHz, DMSO‐D6) δ 6.48 (d, J = 6.3 Hz, 1H, CH=N), 4.84 (d, J = 5.1 Hz, 1H, OH‐2), 4.49 (d, J = 5.7 Hz,
1H, OH‐5), 4.40 – 4.41 (m, 1H, OH‐6), 4.19 (dd, J = 7.6, 5.7 Hz, 2H, OH‐3, OH‐4), 3.96 (dt, J = 8.5, 5.8 Hz, 1H, CH‐
2), 3.60 – 3.63 (m, 2H, CH‐3, CH‐6), 3.54 – 3.56 (m, 1H, CH‐4), 3.46 – 3.47 (m, 1H, CH‐5), 3.38 – 3.40 (m, 1H, CH‐
6’), 3.04 – 3.07 (m, 4H, NCH2), 1.80 – 1.82 (m, 4H, NCH2CH2).
13C NMR (176 MHz, DMSO‐D6) δ 138.09 (C=N), 71.31 (C‐5), 71.15 (C‐3), 71.03 (C‐2), 69.77 (C‐4), 63.74 (C‐6),
50.64 (NCH2), 22.62 (NCH2CH2).
HRMS (ESI): [M+H+]: calculated 249.14450 Da, determined 249.14402 Da.
(2R,3R,4R,5R)‐6‐(piperidin‐1‐ylimino)hexane‐1,2,3,4,5‐pentol(11)
In a 100 ml flask, N‐aminopiperidine (800 mg, 8 mmol) was dissolved in 15 ml of methanol. D‐mannose (900
mg, 5 mmol) was added and the mixture was stirred at the methanol reflux. After 4 h of stirring the reaction
was complete according to the TLC. Volatiles were removed under reduced pressure and the residue was
recrystallized in MTBE‐ethanol 2:1 mixture. Process yielded white crystals (1008 mg, 3.85 mmol, 77%) which
were dried further in vacuum.
FTIR ν (cm‐1): 3371, 3294, 2944, 2856, 2819, 1612, 1445, 1401, 1369, 1312, 1264, 1242, 1199, 1081, 1035, 1003.
1H NMR (700 MHz, DMSO‐D6) δ 6.83 (d, J = 6.0 Hz, 1H, CH=N), 4.83 (d, J = 5.2 Hz, 1H, OH‐2), 4.44 (d, J = 5.6 Hz,
1H, OH‐5), 4.34 (t, J = 5.7 Hz, 1H, OH‐6), 4.17 (dd, J = 7.5, 1.4 Hz, 2H, OH‐3, OH‐4), 3.97 (dt, J = 8.5, 5.6 Hz, 1H,
CH‐2), 3.59 – 3.62 (m, 2H, CH‐3, CH‐6), 3.52 – 3.55 (m, 1H, CH‐4), 3.43 – 3.47 (m, 1H, CH‐5), 3.36 – 3.37 (m, 1H,
CH‐6’), 2.84 – 2.90 (m, 4H, NCH2), 1.59 (quint, J = 5.6 Hz, 4H, NCH2CH2), 1.40 – 1.44 (m, 2H, NCH2CH2CH2).
13C NMR (176 MHz, DMSO‐D6) δ 139.64 (C=N), 71.25 (C‐5), 71.17 (C‐3), 71.00 (C‐2), 69.74 (C‐4), 63.74 (C‐6),
51.59 (NCH2), 24.54 (NCH2CH2), 23.70 (NCH2CH2CH2).
HRMS (ESI): [M+H+]: calculated 263.16015 Da, determined 263.15990 Da.
(2R,3R,4R,5R)‐6‐(azepan‐1‐ylimino)hexane‐1,2,3,4,5‐pentol(12)
In a 100 ml flask, N‐aminoazepane (912 mg, 8 mmol) was dissolved in 15 ml of methanol. D‐mannose (900 mg,
5 mmol) was added and the mixture was stirred at the methanol reflux. After 2 h of stirring the reaction was
complete according to the TLC. Volatiles were removed under reduced pressure and the residue was
recrystallized in MTBE‐ethanol 2:1 mixture. Process yielded white crystals (935 mg, 3.39 mmol, 68%) which
were dried further in vacuum.
FTIR ν (cm‐1): 3396, 3326, 2922, 2856, 1594, 1468, 1437, 1385, 1354, 1318, 1233, 1190, 1132, 1083, 1054, 1029,
1016.
1H NMR (700 MHz, DMSO‐D6) δ 6.38 (d, J = 6.1 Hz, 1H, CH=N), 4.71 (d, J = 5.1 Hz, 1H, OH‐2), 4.43 (d, J = 5.6 Hz,
1H, OH‐5), 4.33 (t, J = 5.7 Hz, 1H, OH‐6), 4.14 (d, J = 7.5 Hz, 1H, OH‐4), 4.10 (d, J = 7.3 Hz, 1H, OH‐3), 3.97 (dt, J =
8.4, 6.1 Hz, 1H, CH‐2), 3.60 – 3.62 (m, 1H, CH‐6), 3.57 – 3.59 (m, 1H, CH‐3), 3.54 – 3.56 (m, 1H, CH‐4), 3.45 –
3.46 (m, 1H, CH‐5), 3.36 – 3.39 (m, 1H, CH‐6’), 3.26 – 3.28 (m, 4H, NCH2), 1.62 – 1.66 (m, 4H, NCH2CH2), 1.47 –
1.51 (m, 4H, NCH2CH2CH2).
13C NMR (176 MHz, DMSO‐D6) δ 132.21 (C=N), 71.40 (C‐5), 71.37 (C‐3), 71.33 (C‐2), 69.88 (C‐4), 63.95 (C‐6),
52.70 (NCH2), 27.96 (NCH2CH2CH2), 26.95 (NCH2CH2).
HRMS (ESI): [M+H+]: calculated 277.17580 Da, determined 277.17490 Da.
(2R,3S,4S)‐5‐(pyrrolidin‐1‐ylimino)pentane‐1,2,3,4‐tetrol(13)
In a 100 ml flask, N‐aminopyrrolidine (688 mg, 8 mmol) was dissolved in 15 ml of methanol. D‐ribose (750 mg,
5 mmol) was added and the mixture was stirred at the methanol reflux. After 3.25 h of stirring the reaction was
complete according to the TLC. Volatiles were removed under reduced pressure and the residue was purified
by column chromatography (eluent: ethanol‐benzene‐triethylamine 29:10:1). Process yielded slightly yellow
liquid (925 mg, 4.24 mmol, 85%).
FTIR ν (cm‐1): 3362, 3280, 2966, 2926, 2868, 2816, 1595, 1456, 1407, 1342, 1305, 1266, 1230, 1132, 1066, 1046,
1030.
1H NMR (700 MHz, DMSO‐D6) δ 6.46 (d, J = 6.5 Hz, 1H, CH=N), 4.84 (d, J = 5.0 Hz, 1H, OH‐2), 4.63 (d, J = 5.3 Hz,
1H, OH‐3), 4.50 (d, J = 4.9 Hz, 1H, OH‐4), 4.33 (t, J = 5.6 Hz, 1H, OH‐5), 4.08 (dt, J = 6.5, 4.7 Hz, 1H, CH‐2), 3.56
(ddd, J = 10.8, 5.4, 2.8 Hz, 1H, CH‐5), 3.43 – 3.45 (m, 1H, CH‐3), 3.36 – 3.41 (m, 2H, CH‐4, CH‐5’), 3.04 – 3.06 (m,
4H, NCH2), 1.79 – 1.81 (m, 4H, NCH2CH2).
13C NMR (176 MHz, DMSO‐D6) δ 136.74 (C=N), 74.36 (C‐3), 72.32 (C‐2), 72.20 (C‐4), 63.17 (C‐5), 50.60 (NCH2),
22.59 (NCH2CH2).
HRMS (ESI): [M+H+]: calculated 219.13393 Da, determined 219.13344 Da.
(2R,3S,4S)‐5‐(piperidin‐1‐ylimino)pentane‐1,2,3,4‐tetrol(14)
In a 100 ml flask, N‐aminopiperidine (800 mg, 8 mmol) was dissolved in 15 ml of methanol. D‐ribose (750 mg, 5
mmol) was added and the mixture was stirred at the methanol reflux. After 4 h of stirring the reaction was
complete according to the TLC. Volatiles were removed under reduced pressure and the residue was
recrystallized in MTBE‐ethanol 4:1 mixture. Process yielded white crystals (960 mg, 4.14 mmol, 83%) which
were dried further in vacuum.
FTIR ν (cm‐1): 3371, 3285, 2931, 2852, 2802, 1608, 1444, 1410, 1377, 1304, 1272, 1239, 1077, 1064, 1046, 1035.
1H NMR (700 MHz, DMSO‐D6) δ 6.82 (d, J = 6.2 Hz, 1H, CH=N), 4.88 (d, J = 5.0 Hz, 1H, OH‐2), 4.65 (d, J = 5.3 Hz,
1H, OH‐3), 4.49 (d, J = 5.1 Hz, 1H, OH‐4), 4.33 (t, J = 5.7 Hz, 1H, OH‐5), 4.11 (dt, J = 6.2, 4.8 Hz, 1H, CH‐2), 3.56
(ddd, J = 10.9, 5.7, 3.0 Hz, 1H, CH‐5), 3.44 – 3.46 (m, 1H, CH‐3), 3.40 – 3.42 (m, 1H, CH‐4), 3.36 – 3.37 (m, 1H,
CH‐5’), 2.84 – 2.90 (m, 4H, NCH2), 1.59 (quint, J = 5.7 Hz, 4H, NCH2CH2), 1.41 – 1.44 (m, 2H, NCH2CH2CH2).
13C NMR (176 MHz, DMSO‐D6) δ 138.50 (C=N), 74.41 (C‐3), 72.36 (C‐2), 72.13 (C‐4), 63.16 (C‐5), 51.56 (NCH2),
24.52 (NCH2CH2), 23.69 (NCH2CH2CH2).
HRMS (ESI): [M+H+]: calculated 233.14958 Da, determined 233.14937 Da.
(2R,3S,4S)‐5‐(azepan‐1‐ylimino)pentane‐1,2,3,4‐tetrol(15)
In a 100 ml flask, N‐aminoazepane (912 mg, 8 mmol) was dissolved in 15 ml of methanol. D‐ribose (750 mg, 5
mmol) was added and the mixture was stirred at the methanol reflux. After 3 h of stirring the reaction was
complete according to the TLC. Volatiles were removed under reduced pressure and the residue was
recrystallized in MTBE. Process yielded white crystals (874 mg, 3.55 mmol, 71%) which were dried further in
vacuum.
FTIR ν (cm‐1): 3432, 3261, 2918, 2852, 1589, 1423, 1391, 1357, 1328, 1276, 1232, 1116, 1090, 1057, 1037.
1H NMR (700 MHz, DMSO‐D6) δ 6.37 (d, J = 6.4 Hz, 1H, CH=N), 4.75 (d, J = 4.9 Hz, 1H, OH‐2), 4.56 (d, J = 5.0 Hz,
1H, OH‐3), 4.46 (d, J = 4.7 Hz, 1H, OH‐4), 4.31 (t, J = 5.7 Hz, 1H, OH‐5), 4.08 (dt, J = 6.4, 4.6 Hz, 1H, CH‐2), 3.56
(ddd, J = 10.8, 5.6, 2.7 Hz, 1H, CH‐5), 3.40 – 3.44 (m, 2H, CH‐3, CH‐4), 3.37 – 3.39 (m, 1H, CH‐5’), 3.25 – 3.27 (m,
4H, NCH2), 1.62 – 1.65 (m, 4H, NCH2CH2), 1.47 – 1.50 (m, 4H, NCH2CH2CH2).
13C NMR (176 MHz, DMSO‐D6) δ 130.68 (C=N), 74.53 (C‐3), 72.57 (C‐2), 72.34 (C‐4), 63.22 (C‐5), 52.46 (NCH2),
27.68 (NCH2CH2CH2), 26.69 (NCH2CH2).
HRMS (ESI): [M+H+]: calculated 247.16523 Da, determined 247.16470 Da.
(2S,3S,4S,5S)‐1‐(pyrrolidin‐1‐ylimino)hexane‐2,3,4,5‐tetrol(16)
In a 100 ml flask, N‐aminopyrrolidine (688 mg, 8 mmol) was dissolved in 15 ml of methanol. L‐rhamnose
monohydrate (910 mg, 5 mmol) was added and the mixture was stirred at the methanol reflux. After 2.5 h of
stirring the reaction was complete according to the TLC. Volatiles were removed under reduced pressure and
the residue was recrystallized in MTBE‐ethanol 4:1 mixture. Process yielded white crystals (926 mg, 3.99 mmol,
80%) which were dried further in vacuum.
FTIR ν (cm‐1): 3420, 3266, 2958, 2917, 2819, 1610, 1454, 1349, 1332, 1288, 1219, 1122, 1101, 1058, 1023.
1H NMR (700 MHz, DMSO‐D6) δ 6.47 (d, J = 6.3 Hz, 1H, CH=N), 4.80 (d, J = 5.2 Hz, 1H, OH‐2), 4.42 (d, J = 5.7 Hz,
1H, OH‐5), 4.12 (d, J = 7.7 Hz, 1H, OH‐4), 4.07 (d, J = 7.4 Hz, 1H, OH‐3), 3.94 (td, J = 8.3, 6.3 Hz, 1H, CH‐2), 3.61
(td, J = 8.5, 1.5 Hz, 1H, CH‐3), 3.57 (dquint, J = 8.1, 6.2 Hz, 1H, CH‐5), 3.31 (td, J = 7.9, 1.5 Hz, 1H, CH‐4), 3.03 –
3.08 (m, 4H, NCH2), 1.79 – 1.83 (m, 4H, NCH2CH2), 1.10 (d, J = 6.3 Hz, 3H, CH3).
13C NMR (176 MHz, DMSO‐D6) δ 137.99 (C=N), 73.50 (C‐4), 71.27 (C‐2), 71.06 (C‐3), 66.36 (C‐5), 50.61 (NCH2),
22.59 (NCH2CH2), 20.49 (CH3).
HRMS (ESI): [M+H+]: calculated 233.14958 Da, determined 233.14870 Da.
(2S,3S,4S,5S)‐1‐(piperidin‐1‐ylimino)hexane‐2,3,4,5‐tetrol(17)
In a 100 ml flask, N‐aminopiperidine (800 mg, 8 mmol) was dissolved in 15 ml of methanol. L‐rhamnose
monohydrate (910 mg, 5 mmol) was added and the mixture was stirred at the methanol reflux. After 3.75 h of
stirring the reaction was complete according to the TLC. Volatiles were removed under reduced pressure and
the residue was recrystallized in MTBE‐ethanol 3:1 mixture. Process yielded white crystals (1021 mg, 4.15
mmol, 83%) which were dried further in vacuum.
FTIR ν (cm‐1): 3408, 3280, 2938, 2860, 2803, 1618, 1442, 1361, 1324, 1294, 1215, 1150, 1124, 1082, 1056, 1041,
1023.
1H NMR (700 MHz, DMSO‐D6) δ 6.83 (d, J = 6.0 Hz, 1H, CH=N), 4.84 (d, J = 5.2 Hz, 1H, OH‐2), 4.42 (d, J = 5.7 Hz,
1H, OH‐5), 4.15 (d, J = 7.8 Hz, 1H, OH‐4), 4.11 (d, J = 7.4 Hz, 1H, OH‐3), 3.97 (td, J = 8.3, 6.0 Hz, 1H, CH‐2), 3.62
(td, J = 8.6, 1.5 Hz, 1H, CH‐3), 3.57 (dquint, J = 8.2, 6.2 Hz, 1H, CH‐5), 3.30 (td, J = 7.9, 1.5 Hz, 1H, CH‐4), 2.85 –
2.91 (m, 4H, NCH2), 1.59 (quint, J = 5.6 Hz, 4H, NCH2CH2), 1.41 – 1.45 (m, 2H, NCH2CH2CH2), 1.11 (d, J = 6.3 Hz,
3H, CH3).
13C NMR (176 MHz, DMSO‐D6) δ 139.56 (C=N), 73.51 (C‐4), 71.27 (C‐2), 71.10 (C‐3), 66.33 (C‐5), 51.58 (NCH2),
24.53 (NCH2CH2), 23.68 (NCH2CH2CH2), 20.52 (CH3).
HRMS (ESI): [M+H+]: calculated 247.16523 Da, determined 247.16460 Da.
(2S,3S,4S,5S)‐1‐(azepan‐1‐ylimino)hexane‐2,3,4,5‐tetrol(18)
In a 100 ml flask, N‐aminoazepane (912 mg, 8 mmol) was dissolved in 15 ml of methanol. L‐rhamnose
monohydrate (910 mg, 5 mmol) was added and the mixture was stirred at the methanol reflux. After 3.25 h of
stirring the reaction was complete according to the TLC. Volatiles were removed under reduced pressure and
the residue was recrystallized in MTBE. Process yielded white crystals (961 mg, 3.70 mmol, 74%) which were
dried further in vacuum.
FTIR ν (cm‐1): 3420, 3300, 2922, 2852, 1595, 1448, 1438, 1387, 1359, 1288, 1266, 1234, 1120, 1076, 1046, 1025,
1001.
1H NMR (700 MHz, DMSO‐D6) δ 6.38 (d, J = 6.1 Hz, 1H, CH=N), 4.72 (d, J = 5.0 Hz, 1H, OH‐2), 4.41 (d, J = 5.7 Hz,
1H, OH‐5), 4.11 (d, J = 7.5 Hz, 1H, OH‐4), 4.03 (d, J = 7.3 Hz, 1H, OH‐3), 3.95 (td, J = 8.1, 6.1 Hz, 1H, CH‐2), 3.54 –
3.61 (m, 2H, CH‐3, CH‐5), 3.31 (td, J = 7.8, 1.5 Hz, 1H, CH‐4), 3.26 – 3.27 (m, 4H, NCH2), 1.62 – 1.65 (m, 4H,
NCH2CH2), 1.47 – 1.52 (m, 4H, NCH2CH2CH2), 1.10 (d, J = 6.4 Hz, 3H, CH3).
13C NMR (176 MHz, DMSO‐D6) δ 131.89 (C=N), 73.65 (C‐4), 71.55 (C‐2), 71.32 (C‐3), 66.42 (C‐5), 52.49 (NCH2),
27.69 (NCH2CH2CH2), 26.70 (NCH2CH2), 20.49 (CH3).
HRMS (ESI): [M+H+]: calculated 261.18088 Da, determined 261.18020 Da.
(2R,3S)‐5‐(pyrrolidin‐1‐ylimino)pentane‐1,2,3‐triol(19)
In a 100 ml flask, N‐aminopyrrolidine (688 mg, 8 mmol) was dissolved in 15 ml of methanol. 2‐deoxy‐D‐ribose
(670 mg, 5 mmol) was added and the mixture was stirred at the methanol reflux. After 1.5 h of stirring the
reaction was complete according to the TLC. Volatiles were removed under reduced pressure and the residue
was purified by column chromatography (eluent: ethanol‐benzene‐triethylamine 29:10:1). Process yielded
slightly yellow liquid (887 mg, 4.39 mmol, 88%).
FTIR ν (cm‐1): 3424, 3269, 3172, 2954, 2890, 2856, 2836, 1611, 1466, 1446, 1413, 1389, 1342, 1263, 1227, 1112,
1084, 1066, 1036, 1006.
1H NMR (700 MHz, DMSO‐D6) δ 6.57 (t, J = 5.6 Hz, 1H, CH=N), 4.56 (d, J = 5.9 Hz, 1H, OH‐3), 4.54 (d, J = 5.4 Hz,
1H, OH‐4), 4.38 (t, J = 5.8 Hz, 1H, OH‐5), 3.50 – 3.53 (m, 1H, CH‐5), 3.45 – 3.48 (m, 1H, CH‐3), 3.32 – 3.35 (m,
1H, CH‐5’), 3.26 – 3.29 (m, 1H, CH‐4), 2.97 – 3.00 (m, 4H, NCH2), 2.40 (ddd, J = 14.5, 5.8, 3.4 Hz, 1H, CH‐2), 2.16
(ddd, J = 14.3, 8.7, 5.3 Hz, 1H, CH‐2’), 1.76 – 1.78 (m, 4H, NCH2CH2).
13C NMR (176 MHz, DMSO‐D6) δ 135.99 (C=N), 74.44 (C‐4), 70.72 (C‐3), 63.20 (C‐5), 50.92 (NCH2), 36.38 (C‐2),
22.37 (NCH2CH2).
HRMS (ESI): [M+H+]: calculated 203.13902 Da, determined 203.13860 Da.
(2R,3S)‐5‐(piperidin‐1‐ylimino)pentane‐1,2,3‐triol(20)
In a 100 ml flask, N‐aminopiperidine (800 mg, 8 mmol) was dissolved in 15 ml of methanol. 2‐deoxy‐D‐ribose
(670 mg, 5 mmol) was added and the mixture was stirred at the methanol reflux. After 1 h of stirring the
reaction was complete according to the TLC. Volatiles were removed under reduced pressure and the residue
was purified by column chromatography (eluent: ethanol‐benzene‐triethylamine 29:10:1). Process yielded
slightly yellow liquid (1055 mg, 4.88 mmol, 98%).
FTIR ν (cm‐1): 3372, 3221, 2930, 2852, 2803, 1605, 1451, 1410, 1360, 1318, 1272, 1193, 1152, 1118, 1082, 1067,
1038, 1023, 1000.
1H NMR (700 MHz, DMSO‐D6) δ 6.92 (t, J = 5.5 Hz, 1H, CH=N), 4.59 (d, J = 5.9 Hz, 1H, OH‐3), 4.56 (d, J = 5.3 Hz,
1H, OH‐4), 4.40 (t, J = 5.7 Hz, 1H, OH‐5), 3.46 – 3.53 (m, 2H, CH‐3, CH‐5), 3.33 – 3.36 (m, 1H, CH‐5’), 3.27 – 3.29
(m, 1H, CH‐4), 2.80 – 2.82 (m, 4H, NCH2), 2.42 (ddd, J = 14.5, 5.7, 3.5 Hz, 1H, CH‐2), 2.18 (ddd, J = 14.3, 8.7, 5.2
Hz, 1H, CH‐2’), 1.57 (quint, J = 5.8 Hz, 4H, NCH2CH2), 1.38 – 1.42 (m, 2H, NCH2CH2CH2).
13C NMR (176 MHz, DMSO‐D6) δ 137.73 (C=N), 74.47 (C‐4), 70.54 (C‐3), 63.19 (C‐5), 51.98 (NCH2), 36.51 (C‐2),
24.66 (NCH2CH2), 23.75 (NCH2CH2CH2).
HRMS (ESI): [M+H+]: calculated 217.15467 Da, determined 217.15420 Da.
(2R,3S)‐5‐(azepan‐1‐ylimino)pentane‐1,2,3‐triol(21)
In a 100 ml flask, N‐aminoazepane (912 mg, 8 mmol) was dissolved in 15 ml of methanol. 2‐deoxy‐D‐ribose
(670 mg, 5 mmol) was added and the mixture was stirred at the methanol reflux. After 45 min of stirring the
reaction was complete according to the TLC. Volatiles were removed under reduced pressure and the residue
was recrystallized in MTBE. Process yielded light yellow crystals (839 mg, 3.65 mmol, 73%) which were dried
further in vacuum.
FTIR ν (cm‐1): 3412, 3359, 3181, 2957, 2917, 2848, 2807, 1593, 1434, 1407, 1379, 1359, 1316, 1231, 1199, 1127,
1085, 1023, 1000.
1H NMR (700 MHz, DMSO‐D6) δ 6.45 (t, J = 5.5 Hz, 1H, CH=N), 4.51 (d, J = 5.7 Hz, 2H, OH‐3, OH‐4), 4.37 (t, J = 5.7
Hz, 1H, OH‐5), 3.51 – 3.53 (m, 1H, CH‐5), 3.44 – 3.46 (m, 1H, CH‐3), 3.33 – 3.36 (m, 1H, CH‐5’), 3.27 – 3.29 (m,
1H, CH‐4), 3.22 – 3.24 (m, 4H, NCH2), 2.40 (ddd, J = 14.5, 5.8, 3.5 Hz, 1H, CH‐2), 2.16 (ddd, J = 14.2, 8.6, 5.1 Hz,
1H, CH‐2’), 1.60 – 1.64 (m, 4H, NCH2CH2), 1.46 – 1.49 (m, 4H, NCH2CH2CH2).
13C NMR (176 MHz, DMSO‐D6) δ 129.27 (C=N), 74.47 (C‐4), 71.07 (C‐3), 63.24 (C‐5), 52.57 (NCH2), 36.48 (C‐2),
27.67 (NCH2CH2CH2), 26.70 (NCH2CH2).
HRMS (ESI): [M+H+]: calculated 231.17032 Da, determined 231.16980 Da.
1HNMR(2S,3R,4S)‐5‐(pyrrolidin‐1‐ylimino)pentane‐1,2,3,4‐tetrol(4)
13CNMR(2S,3R,4S)‐5‐(pyrrolidin‐1‐ylimino)pentane‐1,2,3,4‐tetrol(4)
1HNMR(2S,3R,4S)‐5‐(piperidin‐1‐ylimino)pentane‐1,2,3,4‐tetrol(5)
13CNMR(2S,3R,4S)‐5‐(piperidin‐1‐ylimino)pentane‐1,2,3,4‐tetrol(5)
1HNMR(2S,3R,4S)‐5‐(azepan‐1‐ylimino)pentane‐1,2,3,4‐tetrol(6)
13CNMR(2S,3R,4S)‐5‐(azepan‐1‐ylimino)pentane‐1,2,3,4‐tetrol(6)
1HNMR(2R,3S,4R,5S)‐6‐(pyrrolidin‐1‐ylimino)hexane‐1,2,3,4,5‐pentol(7)
13CNMR(2R,3S,4R,5S)‐6‐(pyrrolidin‐1‐ylimino)hexane‐1,2,3,4,5‐pentol(7)
1HNMR(2R,3S,4R,5S)‐6‐(piperidin‐1‐ylimino)hexane‐1,2,3,4,5‐pentol(8)
13CNMR(2R,3S,4R,5S)‐6‐(piperidin‐1‐ylimino)hexane‐1,2,3,4,5‐pentol(8)
1HNMR(2R,3S,4R,5S)‐6‐(azepan‐1‐ylimino)hexane‐1,2,3,4,5‐pentol(9)
13CNMR(2R,3S,4R,5S)‐6‐(azepan‐1‐ylimino)hexane‐1,2,3,4,5‐pentol(9)
1HNMR(2R,3R,4R,5R)‐6‐(pyrrolidin‐1‐ylimino)hexane‐1,2,3,4,5‐pentol(10)
13CNMR(2R,3R,4R,5R)‐6‐(pyrrolidin‐1‐ylimino)hexane‐1,2,3,4,5‐pentol(10)
1HNMR(2R,3R,4R,5R)‐6‐(piperidin‐1‐ylimino)hexane‐1,2,3,4,5‐pentol(11)
13CNMR(2R,3R,4R,5R)‐6‐(piperidin‐1‐ylimino)hexane‐1,2,3,4,5‐pentol(11)
1HNMR(2R,3R,4R,5R)‐6‐(azepan‐1‐ylimino)hexane‐1,2,3,4,5‐pentol(12)
13CNMR(2R,3R,4R,5R)‐6‐(azepan‐1‐ylimino)hexane‐1,2,3,4,5‐pentol(12)
1HNMR(2R,3S,4S)‐5‐(pyrrolidin‐1‐ylimino)pentane‐1,2,3,4‐tetrol(13)
13CNMR(2R,3S,4S)‐5‐(pyrrolidin‐1‐ylimino)pentane‐1,2,3,4‐tetrol(13)
1HNMR(2R,3S,4S)‐5‐(piperidin‐1‐ylimino)pentane‐1,2,3,4‐tetrol(14)
13CNMR(2R,3S,4S)‐5‐(piperidin‐1‐ylimino)pentane‐1,2,3,4‐tetrol(14)
1HNMR(2R,3S,4S)‐5‐(azepan‐1‐ylimino)pentane‐1,2,3,4‐tetrol(15)
13CNMR(2R,3S,4S)‐5‐(azepan‐1‐ylimino)pentane‐1,2,3,4‐tetrol(15)
1HNMR(2S,3S,4S,5S)‐1‐(pyrrolidin‐1‐ylimino)hexane‐2,3,4,5‐tetrol(16)
13CNMR(2S,3S,4S,5S)‐1‐(pyrrolidin‐1‐ylimino)hexane‐2,3,4,5‐tetrol(16)
1HNMR(2S,3S,4S,5S)‐1‐(piperidin‐1‐ylimino)hexane‐2,3,4,5‐tetrol(17)
13CNMR(2S,3S,4S,5S)‐1‐(piperidin‐1‐ylimino)hexane‐2,3,4,5‐tetrol(17)
1HNMR(2S,3S,4S,5S)‐1‐(azepan‐1‐ylimino)hexane‐2,3,4,5‐tetrol(18)
13CNMR(2S,3S,4S,5S)‐1‐(azepan‐1‐ylimino)hexane‐2,3,4,5‐tetrol(18)
1HNMR(2R,3S)‐5‐(pyrrolidin‐1‐ylimino)pentane‐1,2,3‐triol(19)
13CNMR(2R,3S)‐5‐(pyrrolidin‐1‐ylimino)pentane‐1,2,3‐triol(19)
1HNMR(2R,3S)‐5‐(piperidin‐1‐ylimino)pentane‐1,2,3‐triol(20)
13CNMR(2R,3S)‐5‐(piperidin‐1‐ylimino)pentane‐1,2,3‐triol(20)
1HNMR(2R,3S)‐5‐(azepan‐1‐ylimino)pentane‐1,2,3‐triol(21)
13CNMR(2R,3S)‐5‐(azepan‐1‐ylimino)pentane‐1,2,3‐triol(21)
