Series of Schiff bases of valproic acid hydrazide, N-valproylglycine hydrazide and N-valproyl-4-aminobenzoyl hydrazide derivatives were synthesized and characterized by IR, NMR (1H- and 13C-NMR) and elemental analysis. The prepared compounds were evaluated in transgenic zebrafish embryos (Tg: flil-1: enhanced green fluorescent protein (EGFP)) for antiangiogenic activity and in HepG2 liver carcinoma cell line for anti cancer activity. The Schiff bases of N-valproylglycine hydrazide derivatives were most potent in term of suppressing angiogenic blood vessels formation and anticancer activity at very low concentration, followed by the Schiff bases of valproic acid hydrazide derivatives which exhibited moderate activity, while the Schiff bases of N-valproyl-4-aminobenzoyl hydrazide derivatives, ethyl 4-(2-propylpentanamido)benzoate (VABE) and N-(4-(hydrazinecarbonyl)phenyl)-2-propylpentanamide (VABH) in contrast exhibited pro-angiogenic activity and weaker anticancer activity which mean that these derivatives targeted a common signaling pathway in term of affecting the blood vessels formation.
合成了一系列
丙戊酸肼、N-丙戊酰甘
氨酸
肼和N-丙戊酰-4-
氨基苯甲酰
肼衍
生物,并通过红外光谱(IR)、核磁共振(NMR,包括1H和13C NMR)及元素分析进行了表征。所制备的化合物在转
基因斑马鱼胚胎(Tg: flil-1: 增强型绿色荧光蛋白(
EGFP))中评估了抗血管生成活性,并在HepG2肝癌
细胞系中评估了抗癌活性。N-丙戊酰甘
氨酸
肼衍
生物的 Schiff 碱在抑制血管生成及抗癌活性方面表现出最强的效能,特别是在很低的浓度下,接下来是
丙戊酸肼衍
生物的 Schiff 碱,表现出中等活性,而N-丙戊酰-4-
氨基苯甲酰
肼衍
生物、乙基4-(2-丙基戊酰酰胺)
苯甲酸酯(VABE)和N-(4-(
肼基羰基)苯基)-2-丙基戊酰胺(VABH)则表现出促血管生成活性和较弱的抗癌活性,这意味着这些衍
生物在影响血管形成方面靶向了一个共同的信号通路。