N-((2S,3R,4R,5R)-4-hydroxy-5-methoxy-2,4-dimethyl-6-phenylthioperhydro-2H-pyran-3-yl)(phenylmethoxy)carboxamide 在
sodium hydride 作用下,
以
四氢呋喃 为溶剂,
生成 (5S,1R,2R,6R)-7-aza-2-methoxy-1,5-dimethyl-4,9-dioxa-3-phenylthiobicyclo[4.3.0]nonan-8-one 、 (5S,1R,2R,6R)-7-aza-2-methoxy-1,5-dimethyl-4,9-dioxa-3-phenylthiobicyclo[4.3.0]nonan-8-one