Discovery of Novel Indoline Cholesterol Ester Transfer Protein Inhibitors (CETP) through a Structure-Guided Approach
作者:Jonathan E. Wilson、Ravi Kurukulasuriya、Mikhail Reibarkh、Maud Reiter、Aaron Zwicker、Kake Zhao、Fengqi Zhang、Rajan Anand、Vincent J. Colandrea、Anne-Marie Cumiskey、Alejandro Crespo、Ruth A. Duffy、Beth Ann Murphy、Kaushik Mitra、Douglas G. Johns、Joseph L. Duffy、Petr Vachal
DOI:10.1021/acsmedchemlett.5b00404
日期:2016.3.10
Using the collective body of known (CETP) inhibitors as inspiration for design, a structurally novel series of tetrahydroquinoxaline CETP inhibitors were discovered. An exemplar from this series, compound 5, displayed potent in vitro CETP inhibition and was efficacious in a transgenic cynomologus-CETP mouse HDL PD (pharinacodynamic) assay. However, an undesirable metabolic profile and chemical instability hampered further development of the series. A three-dimensional structure of tetrahydroquinoxaline inhibitor 6 was proposed from H-1 NMR structural studies, and this model was then used in silico for the design of a new class of compounds based upon an indoline scaffold. This work resulted in the discovery of compound 7, which displayed potent in vitro CETP inhibition, a favorable PK-PD profile relative to tetrahydroquinoxaline 5, and dose-dependent efficacy in the transgenic cynomologus-CETP mouse HDL PD assay.