carbonic acid 4-nitro-phenyl ester (S)-2,2,2-trifluoro-1-methyl-ethyl ester 、
tert-butyl (3aR,6aR)-3a-methoxyhexahydropyrrolo[3,4-b]pyrrole-5(1H)-carboxylate 在
silica gel 、
ethyl acetate n-hexane 作用下,
以
氯仿 为溶剂,
反应 2.0h,
以to give 5-tert-butyl 1-[(2S)-1,1,1-trifluoropropan-2-yl] (3aR,6aR)-3a-methoxyhexahydropyrrolo[3,4-b]pyrrole-1,5-dicarboxylate as a pale yellow foam的产率得到5-tert-butyl 1-[(2S)-1,1,1-trifluoropropan-2-yl](3aR,6aR)-3a-methoxyhexahydropyrrolo[3,4-b]pyrrole-1,5-dicarboxylate