943145-90-2
→
~95%
635712-88-8
7,7-二甲基-6,7-二氢-1H-吡唑并[4,3-c]吡啶-5(4H)-羧酸叔丁酯
1028320-14-0
5-dimethylaminomethylene-3,3-dimethyl-4-oxo-piperidine-1-carboxylic acid tert-butyl ester
~91%