Convergent Approach toward the Synthesis of the Stereoisomers of C-6 Homologues of 1-Deoxynojirimycin and Their Analogues: Evaluation as Specific Glycosidase Inhibitors
作者:Ganesh Pandey、Shrinivas G. Dumbre、M. Islam Khan、M. Shabab
DOI:10.1021/jo061455v
日期:2006.10.1
A new and stereoselective strategy is developed to synthesize an appropriate template 9 to obtain C-6 homologues of 1-deoxyazasugars such as 1-deoxy-d-galactohomonojirimycin (5), 1-deoxy-4-hydroxymethyl-d-glucohomonojirimycin (6), and their enantiomers. The template 9 is also used to obtain neutral nonbasic pseudo-glyconolactam (8), C-4 amino, and methyl analogues of 1-deoxy-homonojirimycin as new
一种新的和立体的策略被显影,以合成相应的模板9,得到的C-6同系物1-deoxyazasugars如1-脱氧d -galactohomonojirimycin(5),1-脱氧-4-羟甲基- d -glucohomonojirimycin(6) ,及其对映体。模板9还用于获得中性的非碱性伪乙内酰胺(8),C-4氨基和1-脱氧-homoojirimycin的甲基类似物,作为1-脱氧高纯糖的新类似物。发现化合物5是α-半乳糖苷酶的有效和特异性抑制剂(K i = 1.7μM)。类似的化合物6(Ki = 28μM), ent - 5( K i = 129μM)和ent - 6( K i = 12μM)表现出对β-葡萄糖苷酶的特异性抑制作用。