Discovery of 2-aryl-8-hydroxy (or methoxy)-isoquinolin-1(2H)-ones as novel EGFR inhibitor by scaffold hopping

Bioorganic & Medicinal Chemistry
2013.0

Abstract

2-Aryl-8-hydroxy (or methoxy)-isoquinolin-1(2H)-one has been proposed as a novel scaffold of EGFR inhibitor based on scaffold hoping. In the present study, a series of 2-aryl-8-hydroxy (or methoxy)-isoquinolin-1(2H)-one derivatives were synthesized. Their antiproliferative activities in vitro were evaluated via MTT assay against two human cancer cell lines, including A431 and A549. The SAR of the title compounds was preliminarily discussed. The compounds with ideal inhibition were evaluated through ELISA-based EGFR-TK assay. Compound 6c showed the best activity against A431 and EGFR tyrosine kinase. These findings suggest that title compounds are EGFR inhibitors with novel structures.

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