Synthesis and Structure-Activity Relationship Study of 1-Phenyl-1-(quinazolin-4-yl)ethanols as Anticancer Agents

Kenta Kuroiwa; Hirosuke Ishii; Kenji Matsuno; Akira Asai; Yumiko Suzuki

doi:10.1021/ml5004684

Synthesis and Structure-Activity Relationship Study of 1-Phenyl-1-(quinazolin-4-yl)ethanols as Anticancer Agents

ACS Med Chem Lett. 2015 Jan 10;6(3):287-91. doi: 10.1021/ml5004684. eCollection 2015 Mar 12.

Authors

Kenta Kuroiwa¹, Hirosuke Ishii², Kenji Matsuno², Akira Asai², Yumiko Suzuki¹

Affiliations

¹ Department of Material and Life Sciences, Faculty of Science and Technology, Sophia University , 7-1 Kioicho, Chiyoda-ku, Tokyo 102-8554, Japan.
² Graduate School of Pharmaceutical Sciences, University of Shizuoka , 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan.

Abstract

A quinazoline derivative PVHD121 (1a) was shown to have strong antiproliferative activity against various tumor-derived cell lines, including A549 (lung), NCI-H460 (lung), HCT116 (colon), MCF7 (breast), PC3 (prostate), and HeLa (cervical) cells with IC50 values from 0.1 to 0.3 μM. A structure-activity relationship (SAR) study at the 2- and 4-position of the quinazoline core lead to the discovery of more potent anticancer agents (14, 16, 17, 19, 24, and 31). The results of an in vitro tubulin polymerization assay and fluorescent-based colchicine site competition assay with purified tubulin indicated that 1a inhibits tubulin polymerization by binding to the colchicine site.

Keywords: Quinazoline; anticancer; colchicine binding site; structure−activity relationship study; tubulin inhibitor.