Journal of Medicinal Chemistry p. 696 - 713 (2020)
Update date:2022-08-15
Topics:
Wang, Lei
Fang, Kun
Cheng, Junfei
Li, Yu
Huang, Yahui
Chen, Shuqiang
Dong, Guoqiang
Wu, Shanchao
Sheng, Chunquan
Inspired by the natural product evodiamine, a novel antitumor indolopyrazinoquinazolinone scaffold was designed by scaffold hopping. Structure-activity relationship studies led to the discovery of compound 15j, which shows low nanomolar inhibitory activity against the HCT116 cell line. Further antitumor mechanism studies indicated that compound 15j acted by the dual inhibition of topoisomerase 1 and tubulin and induced apoptosis with G2 cell-cycle arrest. The quaternary ammonium salt of compound 15j (compound 15js) exhibited excellent in vivo antitumor activity (TGI = 66.6%) in the HCT116 xenograft model with low toxicity. Indolopyrazinoquinazolinone derivatives represent promising multitargeting antitumor leads for the development of novel antitumor agents.
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