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Design, Synthesis, Biological Evaluation and Binding Mode Modeling of Benzimidazole Derivatives Targeting the Cannabinoid Receptor Type 1
Author(s) -
EspinosaBustos Christian,
Lagos Carlos F.,
RomeroParra Javier,
Zárate Ana M.,
MellaRaipán Jaime,
PessoaMahana Hernán,
RecabarrenGajardo Gonzalo,
IturriagaVásquez Patricio,
Tapia Ricardo A.,
PessoaMahana C. David
Publication year - 2015
Publication title -
archiv der pharmazie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.468
H-Index - 61
eISSN - 1521-4184
pISSN - 0365-6233
DOI - 10.1002/ardp.201400201
Subject(s) - benzimidazole , cannabinoid receptor , radioligand , cannabinoid , chemistry , stereochemistry , receptor , combinatorial chemistry , cannabinoid receptor type 2 , molecular model , biochemistry , antagonist , organic chemistry
A series of N ‐acyl‐2,5‐dimethoxyphenyl‐1 H ‐benzimidazoles were designed based on a CoMFA model for cannabinoid receptor type 1 (CB1) ligands. Compounds were synthesized and radioligand binding affinity assays were performed. Eight novel benzimidazoles exhibited affinity for the CB1 receptor in the nanomolar range, and the most promising derivative compound 5 displayed a K i value of 1.2 nM when compared to CP55,940. These results confirm our previously reported QSAR model on benzimidazole derivatives, providing new information for the development of small molecules with high CB1 affinity.

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