Pyrazole-based lamellarin O analogues: synthesis, biological evaluation and structure–activity relationships
作者:Karolina Dzedulionytė、Nina Fuxreiter、Ekaterina Schreiber-Brynzak、Asta Žukauskaitė、Algirdas Šačkus、Verena Pichler、Eglė Arbačiauskienė
DOI:10.1039/d3ra00972f
日期:——
A library of pyrazole-based lamellarin O analogues was synthesized from easily accessible 3(5)-aryl-1H-pyrazole-5(3)-carboxylates which were subsequently modified by bromination, N-alkylation and Pd-catalysed Suzuki cross-coupling reactions. Synthesized ethyl and methyl 3,4-diaryl-1-(2-aryl-2-oxoethyl)-1H-pyrazole-5-carboxylates were evaluated for their physicochemical property profiles and in vitro
由容易获得的 3(5)-芳基-1H-吡唑-5(3)-羧酸酯合成了基于吡唑的层状蛋白 O 类似物库,随后通过溴化、 N-烷基化和 Pd 催化的 Suzuki 交叉偶联对其进行修饰反应。评估了合成的 3,4-二芳基-1-(2-芳基-2-氧代乙基)-1 H-吡唑-5-甲酸乙酯和甲酯的理化性质以及对三种人结直肠癌细胞系 HCT116的体外细胞毒性, HT29 和 SW480。最活跃的化合物在低微摩尔范围内抑制细胞增殖。进一步研究了选定的3,4-二芳基-1-(2-芳基-2-氧代乙基) -1H-吡唑-5-甲酸乙酯的作用方式。 Calcein AM/Hoechst/PI联合活力染色结果和荧光激活细胞分选数据表明,细胞死亡以非坏死方式触发,主要由 G2/M 期停滞介导。