tert-butyl 3-(1-(dimethylcarbamoyl)spiro[indoline-3,4'-piperidine]-1'-yl)-8-azabicyclo[3.2.1]octane-8-carboxylate hydrochloride 、
1,4-二氧六环 、
盐酸 在
乙酸乙酯 作用下,
以
甲醇 、
乙醚 为溶剂,
反应 16.0h,
以to provide 1′-(8-azabicyclo[3.2.1]octan-3-yl)-N,N-dimethylspiro[indoline-3,4′-piperidine]-1-carboxamide 6ad bis-hydrochloride as an off white solid (95% purity by LC/MS)的产率得到1'-(8-azabicyclo[3.2.1]octan-3-yl)-N,N-dimethylspiro[indoline-3,4'-piperidine]-1-carboxamide