Design, synthesis, and evaluation of novel (E)‐
N
'‐(3‐allyl‐2‐hydroxy)benzylidene‐2‐(4‐oxoquinazolin‐3(4
H
)‐yl)acetohydrazides as antitumor agents
摘要:
AbstractIn our continuing search for novel small‐molecule anticancer agents, we designed and synthesized a series of novel (E)‐N'‐(3‐allyl‐2‐hydroxy)benzylidene‐2‐(4‐oxoquinazolin‐3(4H)‐yl)acetohydrazides (5), focusing on the modification of substitution in the quinazolin‐4(3H)‐one moiety. The biological evaluation showed that all 13 designed and synthesized compounds displayed significant cytotoxicity against three human cancer cell lines (SW620, colon cancer; PC‐3, prostate cancer; NCI‐H23, lung cancer). The most potent compound 5l displayed cytotoxicity up to 213‐fold more potent than 5‐fluorouracil and 87‐fold more potent than PAC‐1, the first procaspase‐activating compound. Structure–activity relationship analysis revealed that substitution of either electron‐withdrawing or electron‐releasing groups at positions 6 or 7 on the quinazolin‐4(3H)‐4‐one moiety increased the cytotoxicity of the compounds, but substitution at position 6 seemed to be more favorable. In the caspase activation assay, compound 5l was found to activate the caspase activity by 291% in comparison to PAC‐1, which was used as a control. Further docking simulation also revealed that this compound may be a potent allosteric inhibitor of procaspase‐3 through chelation of the inhibitory zinc ion. Physicochemical and ADMET calculations for 5l provided useful information of its suitable absorption profile and some toxicological effects that need further optimization to be developed as a promising anticancer agent.
New Acetohydrazides Incorporating 2‐Oxoindoline and 4‐Oxoquinazoline: Synthesis and Evaluation of Cytotoxicity and Caspase Activation Activity
作者:Le Cong Huan、Duong Tien Anh、Bui Xuan Truong、Phan Huy Duc、Pham‐The Hai、Lai Duc‐Anh、Le‐Thi‐Thu Huong、Eun Jae Park、Hye Jin Lee、Jong Soon Kang、Phuong‐Thao Tran、Dinh Thi Thanh Hai、Dao Thi Kim Oanh、Sang‐Bae Han、Nguyen‐Hai Nam
DOI:10.1002/cbdv.201900670
日期:2020.3
In our search for new small molecules activating procaspase-3, we have designed and synthesized a series of newacetohydrazidesincorporating both 2-oxoindoline and 4-oxoquinazoline scaffolds. Biological evaluation showed that a number of these acetohydrazides were comparably or even more cytotoxic against three human cancer cell lines (SW620, colon cancer; PC-3, prostate cancer; NCI-H23, lung cancer)