Benzoic acid (2R,3R,4S,5R,6S)-4,5-bis-benzyloxy-3-((2R,3S,4S,5R,6R)-4,5-bis-benzyloxy-6-benzyloxymethyl-3-phenylselanyl-tetrahydro-pyran-2-yloxy)-6-methoxy-tetrahydro-pyran-2-ylmethyl ester 在
sodium methylate 作用下,
以
甲醇 为溶剂,
以95%的产率得到[(2R,3R,4S,5R,6S)-4,5-Bis-benzyloxy-3-((2R,3S,4S,5R,6R)-4,5-bis-benzyloxy-6-benzyloxymethyl-3-phenylselanyl-tetrahydro-pyran-2-yloxy)-6-methoxy-tetrahydro-pyran-2-yl]-methanol