Wavefunction Fieldofscience Com 2013 09 Macrocycle Drug Revi

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pdfcrowd.com open in browser PRO version Are you a developer? Try out the HTML to PDF API FS AA AbC AL AS BF C6 CC CH CO/ VL CW DM EP GEP GW HG IF LA MDB MPM PEM PX PY R6 RRR SW TPP VM Geology and Generals: How Geology influenced the Gettysburg Campaign (Part I.) 1 hour ago in History of Geology Rock Mosses 12 hours ago in Catalogue of Organisms Brazuca, a Pogorelov's ball 1 day ago in Doc Madhattan Vertebrate sexual systems 1 day ago in Pleiotropy Garden gnome drone 1 day ago in The Phytophactor Musings on drug discovery, chemistry and the endless frontier of science. The Curious Wavefunction By Wavefunction on Tuesday, September 03, 2013 Macrocycle drug review Recommend this on Google Here's a comprehensive and useful review of macrocycle drugs in J Med Chem by Giordanetto and Kihlberg at AstraZeneca; well worth reading to get an idea of what's out there in the clinic and on the market. The authors looked at about 30 clinical macrocycle candidates and 70 marketed macrocycle drugs and analyzed their principal physicochemical properties to investigate trends and differences. Some main points emerging from the discussion: 1. Most macrocycles are in oncology or infection; however, the ones that are targeted toward other areas include a significant number of de-novo synthetic or semisynthetic molecules from structure- based drug design. 2. Among marketed macrocycles, injected drugs are mostly cyclic peptides while oral drugs are mostly macrolides (in general, injectable macrocycles seem to span a broader chemical space). 3. The structural differences between oral and injectable macrocycles can often be pretty trivial (at least on inspection; eg. tacrolimus vs pimecrolimus). 4. For oral macrocycles, increasing MW seems to track with increasing lipophilicity. 5. There's a set of plots which indicates the limits of chemical space within which marketed macrocycles seem to lie. "Rogue" rule-breakers like cyclosporin which lie very far from this space are still exceptions. The question of whether we can deliberately engineer drug molecules to act like cyclosporin on a large scale is still very much an open one. What is clear is that we are increasingly making molecules that are decidedly testing the boundaries of the rule-of-5 and pushing the envelope. The future is not Ashutosh (Ash) Jogalekar is a scientist working in biotechnology and drug discovery in Cambridge, MA. He is interested in the history and philosophy of science. Ash also blogs at The Curious Wavefunction on Scientific American Blogs and can be reached at curiouswavefunction "at" gmail "dot" com. About Me Search Subscribe Posts Comments Molecular modeling and physics: A tale of two disciplines The LHC is a product of both time and multiple disciplinesIn my professional field of molecular modeling and drug discovery I often feel Previous Posts Join this site w ith Google Friend Connect Members (124) More » Already a member? Sign in Follow Blogroll

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Transcript of Wavefunction Fieldofscience Com 2013 09 Macrocycle Drug Revi

Page 1: Wavefunction Fieldofscience Com 2013 09 Macrocycle Drug Revi

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FS AA AbC AL AS BF C6 CC CH CO/VL CW DM EP GEP GW HG IF LA MDB MPM PEM PX PY R6 RRR SW TPP VMGeology and Generals: HowGeology influenced the GettysburgCampaign (Part I.)1 hour ago in History of Geology

Rock Mosses12 hours ago inCatalogue ofOrganisms

Brazuca, aPogorelov's ball1 day ago in DocMadhattan

Vertebrate sexualsystems1 day ago inPleiotropy

Garden gnome drone1 day ago in The Phytophactor

Musings on drug discovery, chemistry and the endless frontier of science.

The Curious Wavefunction

By Wavefunction on Tuesday, September 03, 2013

Macrocycle drug reviewRecommend this on Google

Here's a comprehensive and useful review of macrocycle drugs in J Med Chem by Giordanetto andKihlberg at AstraZeneca; well worth reading to get an idea of what's out there in the clinic and on themarket.

The authors looked at about 30 clinical macrocycle candidates and 70 marketed macrocycle drugs andanalyzed their principal physicochemical properties to investigate trends and differences. Some mainpoints emerging from the discussion:

1. Most macrocycles are in oncology or infection; however, the ones that are targeted toward otherareas include a significant number of de-novo synthetic or semisynthetic molecules from structure-based drug design.2. Among marketed macrocycles, injected drugs are mostly cyclic peptides while oral drugs are mostlymacrolides (in general, injectable macrocycles seem to span a broader chemical space).3. The structural differences between oral and injectable macrocycles can often be pretty trivial (atleast on inspection; eg. tacrolimus vs pimecrolimus).4. For oral macrocycles, increasing MW seems to track with increasing lipophilicity.5. There's a set of plots which indicates the limits of chemical space within which marketedmacrocycles seem to lie. "Rogue" rule-breakers like cyclosporin which lie very far from this space arestill exceptions.

The question of whether we can deliberately engineer drug molecules to act like cyclosporin on a largescale is still very much an open one. What is clear is that we are increasingly making molecules thatare decidedly testing the boundaries of the rule-of-5 and pushing the envelope. The future is not

Ashutosh (Ash) Jogalekar is a scientist working in biotechnology anddrug discovery in Cambridge, MA. He is interested in the history andphilosophy of science. Ash also blogs at The Curious Wavefunction onScientific American Blogs and can be reached at curiouswavefunction"at" gmail "dot" com.

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Molecular modeling andphysics: A tale of twodisciplinesThe LHC is a product of bothtime and multipledisciplinesIn my professionalfield of molecular modelingand drug discovery I often feel

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