1'-(tert-butoxycarbonyl)-2,3-diethyl-4,6-dihydrospiro[furo[3,4-c]pyrazole-6(2H),4'-piperidine] 、 1'-(tert-butoxycarbonyl)-1,3-diethyl-4,6-dihydrospiro[furo[3,4-c]pyrazole-6(1H),4'-piperidine] 在
乙酰氯 作用下,
以
甲醇 为溶剂,
反应 24.0h,
生成
1,3-diethyl-4,6-dihydrospiro[furo[3,4-c]pyrazole-6(1H),4'-piperidine] 、
2,3-diethyl-4,6-dihydrospiro[furo[3,4-c]pyrazole-6(2H),4'-piperidine]