Synthesis and Biological Activity of Schiff Base Series of Valproyl, <i>N</i>-Valproyl Glycinyl, and <i>N</i>-Valproyl-4-aminobenzoyl Hydrazide Derivatives
作者:Ayman El-Faham、Muhammad Farooq、Sherine Nabil Khattab、Ahmed Mohamed Elkayal、Mahmoud Fawzy Ibrahim、Nael Abutaha、Mohammad Ahmad Wadaan、Ezzat Awad Hamed
DOI:10.1248/cpb.c14-00143
日期:——
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。