Development of Small-Molecule Cryptochrome Stabilizer Derivatives as Modulators of the Circadian Clock.

ABSTRACT: Small-molecule probes have been playing prominent roles in furthering our understanding of the molecular underpinnings of the circadian clock. We previously discovered a carbazole derivative, KL001 (N-(3-(9H-carbazol-9-yl)-2-hydroxypropyl)-N-(furan-2-ylmethyl)methanesulfonamide), as a stabilizer of the clock protein cryptochrome (CRY). Herein we describe an extensive structure-activity relationship analysis of KL001 derivatives leading to the development of a highly active derivative: 2-(9H-carbazol-9-yl)-N-(2-chloro-6-cyanophenyl)acetamide (KL044). Subsequent 3D-QSAR analysis identified critical features of KL001 derivatives and provided a molecular-level understanding of their interaction with CRY. The electron-rich carbazole, amide/hydroxy linker, sulfonyl group, and electron-withdrawin

SUBMITTER: Lee JW 

PROVIDER: S-EPMC4576822 | biostudies-literature | 2015 Sep

REPOSITORIES: biostudies-literature