Reactivity axis: Difference between revisions

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we never build protomers of H, G, F.   
we never build protomers of H, G, F.   
we need to classify pains by assumed mechanism
397 pains never hit any compound in zinc


[[Category:ZINC15]]
[[Category:ZINC15]]
[[Category:PAINS]]
[[Category:PAINS]]

Revision as of 19:38, 21 July 2015

Here we describe the "clean" axis in the exported subsets of ZINC15.

Traditionally, ZINC standard subsets included: A, B, C, D, E.

ZINC "clean" subsets were just A, B, C, D.

The Clean Axis

Class Nickname Description How computed
A Anodyne No flags of any kind set no pattern matches whatsoever
B Unnecessarily complex The worst feature is the molecules are over decorated e.g. too many chlorides complex, requires representative in A
C Chromophore Worst problem is a chromophore that could interfere with some asays extended conjugated system, pattern_type = 5
D Any PAINS Any pains pattern not covered in E,F,G,H pattern_type= 8 (PAINS)
E mildly electrophilic or nucleophilic aldhydes, thiols, michael acceptors, epoxides pattern_type in (1,2)
F strongly electrophilic or nucleophilic alpha halo ketones, alkyl halides. Note includes cancer drugs. pattern_type in (3,4)
G unstable in buffer typically reagents, but could be used for covalent binding. e.g. boronic acids pattern_type = 10
H nonsensical idea from the PAINS papers pattern_type = 14

other concepts mentioned, must be fit in: chelation, redox, covalent, amphiphilicity

poor derivatizability, optimizability

we never build protomers of H, G, F.

we need to classify pains by assumed mechanism

397 pains never hit any compound in zinc