Phthalic acid 1-[(2R,3R,4S,5R,6S)-4,5-bis-benzyloxy-6-methoxy-3-(2,2,2-trichloro-ethoxycarbonyloxy)-tetrahydro-pyran-2-ylmethyl] ester 2-((2R,3R,4S,5R)-3,4,5-tris-benzyloxy-6-phenylsulfanyl-tetrahydro-pyran-2-ylmethyl) ester 在
铜 、
溶剂黄146 、
锌 作用下,
以94%的产率得到Phthalic acid 1-((2R,3R,4S,5R,6S)-4,5-bis-benzyloxy-3-hydroxy-6-methoxy-tetrahydro-pyran-2-ylmethyl) ester 2-((2R,3R,4S,5R)-3,4,5-tris-benzyloxy-6-phenylsulfanyl-tetrahydro-pyran-2-ylmethyl) ester