作者:Lin Xu、Neil P.J. Price
DOI:10.1016/j.carres.2004.02.010
日期:2004.4
Chirally deuterated (S)-D-(6-(2)H(1))glucose has been prepared in good overall yield from d-(6,6'-(2)H(2))glucose by a short, five-step synthesis from D-(6,6-(2)H(2))glucose utilizing (R)-(+)-Alpine-Borane [(R)-9-[(6,6-dimethylbicyclo[3.1.1]hept-2-yl)methyl]-9-borabicyclo[3.3.1]nonane]. Suitably protected methyl 2,3,4-tri-O-benzyl-D-(6,6-(2)H(2))glucopyranoside was prepared and the deuterated O-6 primary
从d-(6,6'-(2)H(2))葡萄糖中短短五次制备手性氘代(S)-D-(6-(2)H(1))葡萄糖即可获得良好的总收率D((6,6-(2)H(2))葡萄糖利用(R)-(+)-高山-硼烷[(R)-9-[(6,6-二甲基双环[3.1.1] [庚-2-基)甲基] -9-硼环[3.3.1]壬烷]。制备适当保护的甲基2,3,4-三-O-苄基-D-(6,6-(2)H(2))吡喃葡萄糖苷,并通过Swern氧化将氘代的O-6伯醇氧化为醛。用非氘代(R)-(+)-Alpine-Borane进行立体选择性还原得到甲基2,3,4-tri-O-苄基-(6S)-D-(6-(2)H(1))吡喃葡萄糖苷在标准条件下脱保护,得到标题化合物。关键的立体选择性还原步骤以90%的收率实现。准备使用经济,