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ID: ALA2034981
Journal: Bioorg Med Chem Lett
Title: MK-8825: a potent and selective CGRP receptor antagonist with good oral activity in rats.
Authors: Bell IM, Stump CA, Gallicchio SN, Staas DD, Zartman CB, Moore EL, Sain N, Urban M, Bruno JG, Calamari A, Kemmerer AL, Mosser SD, Fandozzi C, White RB, Zrada MM, Selnick HG, Graham SL, Vacca JP, Kane SA, Salvatore CA.
Abstract: Rational modification of the clinically tested CGRP receptor antagonist MK-3207 (3) afforded an analogue with increased unbound fraction in rat plasma and enhanced aqueous solubility, 2-[(8R)-8-(3,5-difluorophenyl)-8-methyl-10-oxo-6,9-diazaspiro[4.5]dec-9-yl]-N-[(6S)-2'-oxo-1',2',5,7-tetrahydrospiro[cyclopenta[b]pyridine-6,3'-pyrrolo[2,3-b]pyridin]-3-yl]acetamide (MK-8825) (6). Compound 6 maintained similar affinity to 3 at the human and rat CGRP receptors but possessed significantly improved in vivo potency in a rat pharmacodynamic model. The overall profile of 6 indicates it should find utility as a rat tool to investigate effects of CGRP receptor blockade in vivo.
CiteXplore: 22607672