Design, synthesis, and evaluation of novel <i>N'</i>-substituted-1-(4-chlorobenzyl)-1<i>H</i>-indol-3-carbohydrazides as antitumor agents
作者:Le Cong Huan、Duong Tien Anh、Pham-The Hai、Lai Duc Anh、Eun Jae Park、A Young Ji、Jong Soon Kang、Do Thi Mai Dung、Dao Thi Kim Oanh、Truong Thanh Tung、Dinh Thi Thanh Hai、Sang-Bae Han、Nguyen-Hai Nam
DOI:10.1080/14756366.2020.1816997
日期:2020.1.1
In continuity of our search for novel anticancer agents acting as procaspase activators, we have designed and synthesised two series of (E)-N '-benzylidene-carbohydrazides (4a-m) and(Z)-N'-(2-oxoindolin-3-ylidene)carbohydrazides (5a-g) incorporating 1-(4-chlorobenzyl)-1H-indole core. Bioevaluation showed that the compounds, especially compounds in series4a-m, exhibited potent cytotoxicity against three human cancer cell lines (SW620, colon cancer; PC-3, prostate cancer; NCI-H23, lung cancer). Within series4a-m, compounds with 2-OH substituent (4g-i) exhibited very strong cytotoxicity in three human cancer cell lines assayed with IC(50)values in the range of 0.56-0.83 mu M. In particular, two compounds4dand4fbearing4-Cland 4-NO(2)substituents, respectively, were the most potent in term of cytotoxicity with IC(50)values of 0.011-0.001 mu M. In caspase activation assay, compounds4band4fwere found to activate caspase activity by 314.3 and 270.7% relative to PAC-1. This investigation has demonstrated the potential of these simple acetohydrazides, especially compounds4b,4d, and4f, as anticancer agents.