European Journal of Medicinal Chemistry p. 630 - 643 (2017)
Update date:2022-08-11
Topics:
Tian, Chao
Wang, Meng
Han, Zifei
Fang, Fang
Zhang, Zhili
Wang, Xiaowei
Liu, Junyi
A series of novel 6-substituted pyrrolo[3,2-d]pyrimidine analogues (10a, 11a-13a, 15a, 17a, 18a, 27a and 28a) have been designed and synthesized as antifolate antitumor agents. The anti-proliferative activities of these compounds against HL60, A549, H1299, Hela, HCT116 and HT29 tumor cells were evaluated. Most of the compounds exhibited micromolar anti-proliferative potencies. Compound 15a, the most potent one, has GI50 value of 0.73, 1.72, and 8.92 μM against A549, H1299 and HL60 cells, respectively. The cell cycle distribution assay displayed that 15a could increase the accumulation of G2/M-phase cells. 15a showed low potency in induction of apoptosis. However, the inhibition of A549 cell colony formation was observed. These indicated that the tumor cell death relied on the irreversible effect of 15a on clonogenicity and cell proliferation. The identification of targeted pathway of 15a implied that the anti-proliferative potencies of 15a probably act through dual inhibition of thymidylate synthase (TS) and dihydrofolate reductase (DHFR).
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