Synthesis of N-glycoside compounds from phthalimide and 5-nitrobenzimidazole via 1,2-O-sulfinyl derivatives and in vitro cytotoxic activity
作者:Abdelhafid Benksim、Said Elhizazi、Brahim Lakhrissi、Mohamed Amine、Mohamed Cherkaoui、Abdessamad Tounsi、Anne Wadouachi
DOI:10.1007/s13738-020-01877-3
日期:2020.7
An efficient synthesis of 1,2-trans-N-glycosylated derivatives from phthalimide and nitrobenzimidazole via 1,2-O-sulfinyl monosaccharides has been established. Such SN2-type displacements at the anomeric center are stereospecific, giving a single anomer. The reaction was optimized using a polar aprotic solvent and K2CO3 at 80 °C. Phthalimide and nitrobenzimidazole 1,2-trans-N-glycoside derivatives
的有效合成1,2- -反式- ñ -glycosylated从邻苯二甲酰亚胺和衍生物硝基苯经由1,2- ø -亚磺酰基的单糖已经建立。这样小号Ñ在异头中心2型位移是立体有择的,给人一种单端基异构体。使用极性非质子溶剂和K 2 CO 3在80°C下优化反应。邻苯二甲酰亚胺和硝基苯1,2-反式- ñ糖苷衍生物容易与在C-2游离羟基,其可以被进一步官能化得到。化合物3d–e 在对人类癌细胞系(Hep-2)的125μg/ Ml抑制作用下,显示出显着的细胞毒性活性,其抑制作用超过50%。