1-[(3aS,4S,6S,6aR)-6-((R)-2,2-Dimethyl-[1,3]dioxolan-4-yl)-4-methoxy-2,2-dimethyl-tetrahydro-furo[3,4-d]oxazol-3-yl]-ethanone 在
吡啶 、
溶剂黄146 作用下,
生成
(3aS)-3-acetyl-6t-((R)-1,2-diacetoxy-ethyl)-4c-methoxy-2,2-dimethyl-(3ar,6ac)-hexahydro-furo[3,4-d]oxazole