methyl [3'R-(3'β,6'α,8'aβ)]-1-[[1-(tert-butoxycarbonyl)-2(S)-pyrrolidinyl]carbonyl]-5'-oxospiro[pyrrolidine-2,6'-thiazolidino[3,2-a]piperidine]-3'-carboxylate 在
氨 作用下,
以
甲醇 为溶剂,
以150 mg的产率得到[3'R-(3'β,6'α,8'aβ)]-1-[[1-(tert-butoxycarbonyl)-2(S)-pyrrolidinyl]carbonyl]-5'-oxospiro[pyrrolidine-2,6'-thiazolidino[3,2-a]piperidine]-3'-carboxamide