Methyl-5-acetamido-4,7-di-O-acetyl-3,5,7-tridesoxy-9-O-(methyldithiocarboxy)-β-D-glycero-D-galakto-2-nonulopyranosidonsaeuremethylester 在
三正丁基氢锡 作用下,
以
xylene 为溶剂,
反应 2.5h,
生成 Methyl-5-acetamido-4,7,8-tri-O-acetyl-3,5,9-tridesoxy-β-D-glycero-D-galakto-2-nonulopyranosidonsaeuremethylester