(3R,7S,7aR)-methyl 3-tert-butyl-7-(1,3-dithian-2-yl)-7-hydroxy-6,6-dimethyl-5-oxohexahydropyrrolo[1,2-c]oxazole-7a-carboxylate 在
三乙胺 作用下,
以
四氢呋喃 为溶剂,
反应 10.0h,
以80%的产率得到(3R,7R,7aR)-methyl 3-tert-butyl-(1,3-dithian-2-yl)-7-hydroxy-6,6-dimethyl-5-oxohexahydropyrrolo[1,2-c]oxazole-7a-carboxylate