二碳酸二叔丁酯 、
(R)-tert-butyl (1-(5-methyl-6,7-dihydro-5H-cyclopenta[d]pyrimidin-4-yl)spiro[indoline-3,4'-piperidine]-4-yl)methylcarbamate 以
二氯甲烷 为溶剂,
以88%的产率得到(R)-tert-butyl 4-((tert-butoxycarbonylamino)methyl)-1-(5-methyl-6,7-dihydro-5H-cyclopenta[d]pyrimidin-4-yl)spiro[indoline-3,4'-piperidine]-1'-carboxylate