Aziridine carboxylate from d-glucose: synthesis of polyhydroxylated piperidine, pyrrolidine alkaloids and study of their glycosidase inhibition
作者:Dilip D. Dhavale、K. S. Ajish Kumar、Vinod D. Chaudhari、Tarun Sharma、Sushma G. Sabharwal、J. PrakashaReddy
DOI:10.1039/b509216g
日期:——
intramolecular nucleophilic expulsion of bromine. The regioselective aziridine ring-opening, using water as a nucleophile, resulted in the alpha-hydroxy-beta-aminoester 6, which was exploited in the synthesis of six and five membered azasugars 1b/1c and 2b/2c, respectively. The glycosidase inhibitory activity of the title compounds was evaluated.
D-葡萄糖衍生的氮丙啶羧酸酯5是由(E)-乙基-6-溴-1,2-O-异亚丙基-3-O-苄基-5-脱氧-α-D-二甲苯基5-eno-庚烷获得的通过共轭添加苄胺和原位分子内亲核性驱除溴来生成四氢呋喃核苷4。使用水作为亲核试剂的区域选择性氮丙啶开环导致产生α-羟基-β-氨基酯6,该α-羟基-β-氨基酯6分别用于合成六元和五元氮杂糖1b / 1c和2b / 2c。评价了标题化合物的糖苷酶抑制活性。