ethyl (1SR,5RS,6SR,8RS)-6-t-butyldimethylsilyloxymethyl-8-ethoxycarbonylamino-3,3-dimethyl-2,4-dioxa-7-azabicyclo<3.3.0>octane-7-carboxylate 在
盐酸 作用下,
以
四氢呋喃 为溶剂,
反应 0.25h,
以81%的产率得到ethyl (1SR,5RS,6SR,8RS)-6-ethoxycarbonylamino-8-hydroxymethyl-3,3-dimethyl-2,4-dioxa-7-azabicyclo<3.3.0>octane-7-carboxylate