Le HT, Do KM, Nguyen QP, Doan CNM, Nguyen NA, Phan TT, Tran XTC, Ha QTK, Tran DQ, Morita H, Bui HTB. Syntheses and Cytotoxicities of Quinazolinone-Based Conjugates.
Chem Pharm Bull (Tokyo) 2024;
72:61-67. [PMID:
38220213 DOI:
10.1248/cpb.c23-00674]
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Abstract
Two novel series of quinazolinone-based hybrids, including quinazolinone-1,3,4-oxadiazoles (10a-l) and quinazolinone-1,3,4-oxadiazole-benzimidazoles (8a-e), were designed and synthesized and their cytotoxic activities against three human cancer cell lines, lung cancer (A549), cervical cancer (HeLa), and breast cancer (MCF-7), were evaluated. The cytotoxic assays revealed that 10i with a lipophilic 4-fluoro-phenyl moiety at the C-2 position of the quinazolinone ring displayed good cytotoxicities against the A549 and MCF-7 cell lines, while 8b-d with the thioether-linked benzimidazole moiety incorporated on the right side of the oxadiazole ring induced comparable stronger activities toward the MCF-7 cell line, relative to the simple two-heterocycle-containing hybrid 10i. These novel quinazolinone-based hybrids could be considered as lead compounds that merit further optimization and development as anti-cancer agents.
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