Chloro-acetic acid (2R,3R,4S,5R,6S)-2-acetoxymethyl-4,5,6-tris-benzyloxy-tetrahydro-pyran-3-yl ester 在
dithiocarbonic acid hydrazide 作用下,
以
溶剂黄146 为溶剂,
反应 0.25h,
以96%的产率得到Acetic acid (2R,3R,4S,5R,6S)-4,5,6-tris-benzyloxy-3-hydroxy-tetrahydro-pyran-2-ylmethyl ester