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Cited by 271

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Properties of Known Drugs. 2. Side Chains

Bemis, Guy W., Murcko, Mark A.·1999·Journal of Medicinal Chemistry

Abstract

We continue our study of the common features present in drug molecules by looking in detail at drug side chains. Using shape description methods, we divide a database of commercially available drugs into a list of common drug side chains. On the basis of the atom pair shape descriptor (taking into account atom type, hybridization, and bond order), there are 1,246 different side chains among the 5,090 compounds analyzed. The average number of side chains per molecule is 4, and the average number of heavy atoms per side chain is 2. If we ignore the carbonyl side chain, then there are approximately 15,000 occurrences of side chains. Of these 15,000 approximately 11,000 are from the "top 20" group of side chains. This suggests that the diversity that side chains provide to drug molecules is quite low. We discuss ways that this work could be used to provide guidance for molecular design efforts.

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Metadata

Authors
Bemis, G. W., & Murcko, M. A.
Venue
Journal of Medicinal Chemistry
Published
1999-12-01
Volume
42
Issue
25
Pages
5095-5099
ISSN
  • 0022-2623 (ISSN-L)
  • 1520-4804
OpenAlex
W2003932717
Cited by
271
References
1
FWCI
14.76
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Properties of Known Drugs. 2. Side Chains. https://app.cochat.ai/papers/10.1021/jm9903996
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Bemis, G. W., & Murcko, M. A. (1999). Properties of Known Drugs. 2. Side Chains. Journal of Medicinal Chemistry. https://doi.org/10.1021/jm9903996

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Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.