effectively block the conduction of signaling pathways and is an ideal target for drug design. In this paper; two series of 4-morpholino-7,8-dihydro-5H-thiopyrano[4,3-d]pyrimidine derivatives bearing pyrazoline moiety (7a–l; 8a–l) were synthesized; and their cytotoxicity in vitro were evaluated by 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) method against four human cancer cell lines
磷脂酰肌醇 3-激酶/蛋白激酶 B/哺乳动物
雷帕霉素靶点 (
PI3K/Akt/mTOR) 信号通路在癌细胞的生长和增殖中异常活跃。抑制
PI3K激酶可以有效阻断信号通路的传导,是药物设计的理想靶点。在本文中; 合成了两个系列的带有
吡唑啉部分的 4-morpholino-7,8-dihydro-5H-thiopyrano[4,3-d]pyrimidine 衍
生物 (7a-l; 8a-l); 并通过3-(
4,5-二甲基噻唑-2-基)-2,5-二苯基
溴化
四唑(M
TT)法对包括A549在内的四种人癌
细胞系进行体外细胞毒性评价;PC-3;MCF-7;和 HepG2
细胞系。进一步评估了最有希望的化合物 8d 对
PI3Kα 激酶的活性。结果表明,大多数目标化合物显示出中等至极好的细胞毒性,最有前途的化合物 8d 对四种癌
细胞系显示出极好的细胞毒性,其半数抑制浓度 (IC50) 值为 6.02–10.27