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Home Compound Library Sets 3D-Shaped Fragments

3D-Shaped Fragments



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What makes the fragment a specific “key” to the binding site is its shape. Fragment libraries mostly consist of rod-like molecules, with spherical ones highly diluted in this number. Disc- and sphere-shaped molecules are more conformationally rigid which contributes to the unambiguity of their interaction with target.

Shape of the molecule can be predicted from the Plane of Best Fit and Principal Moments of Inertia descriptors. For Chemspace 3D-Shaped fragments we selected only the compounds that have PBF≥0.6 and NPRsum≥1.1 and, at the same time, their shape determined from the PMI1-PMI2-PMI3 triangle diagram is not rod-like. These fragments have mostly, but not necessarily, high fsp3 value.

5-{[(2R)-2-(difluoromethyl)pyrrolidin-1-yl]methyl}-1H-pyrazole
CSC027709613
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2-{4-ethyl-4H,5H,6H,7H-thieno[3,2-c]pyridin-5-yl}-N-methylacetamide
CSC027049992
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(2S,4R)-1-(cyclopropanesulfonyl)-4-fluoropyrrolidine-2-carboxamide
CSC057663483
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5-methanesulfonyl-8-oxa-5-azaspiro[3.5]nonane
CSC015267091
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