Structure-Activity Relationship of Tumor-Selective 5-Substituted 2-Amino-3-carboxymethylthiophene Derivatives
作者:Joice Thomas、Alenka Jejcic、Peter Vervaeke、Romeo Romagnoli、Sandra Liekens、Jan Balzarini、Wim Dehaen
DOI:10.1002/cmdc.201402274
日期:2014.12
linker between the 2‐amino‐3‐carboxymethylthiophene and the substituted aryl by a thioalkyl but not by an oxyalkyl nor an aminoalkyl. Among >50 novel 8 c derivatives, the 5‐(4‐ethyl‐ and 4‐isopropylarylmethylthio)thiophene analogues, methyl‐2‐amino‐5‐((4‐ethylphenylthio)methyl)thiophene‐3‐carboxylate (13 m) and methyl‐2‐amino‐5‐((4‐isopropylphenylthio)methyl)thiophene‐3‐carboxylate (13 n), were more
甲基-2-氨基-5- [2-(4-甲氧基苯乙基)]噻吩-3-羧酸盐(8 c)是一类明确定义的肿瘤选择剂的原型。化合物8c优先抑制多种肿瘤细胞系的增殖,包括许多人类T淋巴瘤/白血病细胞,但也抑制几种前列腺,肾,中枢神经系统和肝肿瘤细胞类型。相反,其他各种肿瘤细胞系(包括B淋巴瘤和HeLa细胞)均未受到影响。肿瘤选择性(TS;选择性指数或优先抑制CEM淋巴瘤(IC 50 = 0.90μ中号)对肿瘤的HeLa细胞癌(IC 50 = 39μ中号))达到~43为8℃。在较高浓度下,该化合物证明具有细胞毒性而不是细胞生长抑制作用。通过用硫代烷基而不是用氧烷基或氨基烷基代替2-氨基-3-羧甲基噻吩和取代的芳基之间的乙基连接基,可以保留8 c的抗增殖能力和选择性。在> 50种新颖的8 c衍生物中,5-(4-乙基和4-异丙基芳基甲硫基)噻吩类似物,2--2-氨基-5-((4-乙基苯硫基)甲基)噻吩-3-羧酸酯(13