((2R,3R,4S,5S,6R)-2,5-Bis-benzyloxy-4-tert-butoxycarbonylamino-6-phenylcarbamoyloxymethyl-tetrahydro-pyran-3-yl)-carbamic acid tert-butyl ester 在
盐酸 作用下,
以
1,4-二氧六环 、
乙醇 为溶剂,
以86%的产率得到Phenyl-carbamic acid (2R,3S,4S,5R,6R)-4,5-diamino-3,6-bis-benzyloxy-tetrahydro-pyran-2-ylmethyl ester