tert-butyl (1R,3'S)-3'-((2-chloro-3-(trifluoromethyl)benzyl)(cyclopropyl)carbamoyl)-5,6-difluoro-3-hydroxy-3H-spiro[isobenzofuran-1,4'-piperidine]-1'-carboxylate 在
盐酸 作用下,
以
1,4-二氧六环 为溶剂,
反应 0.67h,
以5%的产率得到(1R,3'S)-N-(2-chloro-3-(trifluoromethyl)benzyl)-N-cyclopropyl-5,6-difluoro-3-hydroxy-3H-spiro[isobenzofuran-1,4'-piperidine]-3'-carboxamide