Diastereoselective Synthesis of Novel Iminosugar-Containing UDP-Gal<i>f </i>Mimics: Potential Inhibitors of UDP-Gal Mutase and UDP-Gal<i>f</i> Transferases
作者:Virginie Liautard、Alphert E. Christina、Valérie Desvergnes、Olivier R. Martin
DOI:10.1021/jo061130e
日期:2006.9.1
diphosphono-β-Galf mimics based on an iminosugar skeleton linked to UMP by a 2-hydroxypropyl tether. The synthesis is based on the highly regio- and stereoselective cycloaddition of an original uridin-5‘-yl allylphosphonate with a 1,4-dideoxy-1,4-iminogalactitol-derived cyclic nitrone, followed by the reductive elaboration of the cycloaddition product. The resulting iminogalactose−UMP conjugates are novel sugar
四ø苄基d -glucofuranose物转化成尿苷二膦酰基- β-Gal的˚F基于亚氨基糖模拟物骨架由2-羟丙基系绳连接于UMP。该合成基于原始的uridin-5'-烯丙基膦酸酯与1,4-二脱氧-1,4-亚氨基半乳糖醇衍生的环状硝酮的高度区域选择性和立体选择性环加成,然后还原精制环加成产物。所得的亚氨基半乳糖-UMP共轭物是新型糖核苷酸模拟物,可用作UDP-Gal突变酶和UDP-Gal f转移酶的抑制剂。