设计并合成了一类新型的(2E)-(2-氧代-1,2-二氢-3 H-吲哚-3-亚烷基)乙酸酯衍生物,作为有效的抗增殖剂。这些化合物大多数对某些肿瘤细胞系(包括SK-BR-3,MDA-MB-231,HCT-116,SW480,Ovcar-3,HL-60,Saos-2和HepG2)显示出有效的抗增殖活性。化合物8c和11h被认为是最有效的化合物,而HL-60,HCT116和MDA-MB-231是最敏感的细胞系。机理研究表明,化合物8c通过抑制TrxR增强活性氧的水平,然后通过激活HCT116细胞中的凋亡蛋白,bax和Caspase 3来诱导凋亡。SAR的初步分析表明,双键和酯基的修饰对抗增殖活性有很大影响。我们的发现表明,值得进一步研究(2E)-(2-oxo-1,2-dihydro-3 H -indol-3-ylidene)acetate的抗肿瘤效力。
A highlyenantioselectivesynthesis of tetrahydroindolizines by catalytic multicomponent cycloaddition reactions of diazoacetate, pyridine, and alkenyloxindole was developed. Under the relay catalysis, involving an achiral iron(III) catalyst and chiral N,N′‐dioxide‐scandium(III) complex, a series of tetrahydroindolizines bearing different substituents were obtained in moderate to high yields (up to