Synthesis, DNA intercalation and 3D QSAR analysis of cis-2,4,5-trisubstituted-1,3-dithiolanes as a novel class of antitumor agents
作者:Fei Huang、Ming Zhao、Xiaoyi Zhang、Chao Wang、Keduo Qian、Reen-Yen Kuo、Susan Morris-Natschke、Kuo-Hsiung Lee、Shiqi Peng
DOI:10.1016/j.bmc.2009.06.011
日期:2009.8
l-amino acids provided 18 active antitumor cis-2-carbonylmethyl-4,5- di(l-aminoacyloxymethyl)-1,3-dithiolane analogs (5a–r). Five compounds (5b,c,e,k,p) exhibited remarkable antitumor activity in in vivo assays. The in vivo antitumor potency of 5e,k,p at 44.64 μmol/kg was similar to that of cytarabine at 89.28 μmol/kg. Several different assay systems, including UV–vis of CT DNA with or without the representative
酸催化的(2 R,3 S)-2,3-二巯基琥珀酸二甲酯和1,1,3,3-四甲氧基丙烷的反缩醛化反应可得到顺式-4,5-二甲氧基羰基-2-(2',2'-二甲氧基乙基) )-1,3-二硫杂环戊烷(2),产率为77%。2和1-氨基酸的酯化反应提供了18种抗肿瘤活性的顺式-2-羰基甲基-4,5-二(1-氨基酰氧基甲基)-1,3-二硫杂环戊酸酯类似物(5a – r)。五种化合物(5b,c,e,k,p)在体内试验中显示出显着的抗肿瘤活性。5e,k,p在44.64μmol/ kg的体内抗肿瘤效力类似于阿糖胞苷在89.28μmol/ kg的体内。几个不同的测定系统,包括紫外可见CT DNA的具有或不具有代表性的化合物5D具有或不具有代表性的化合物CT DNA和CD谱部5b,˚F,我表明,DNA是目标5A - - [R 。建立了3D QSAR模型以阐明体内抗肿瘤活性与类似物结构之间的定量关系。r 2的方程等于0