71721-67-0
ethyl (2Z)-2-nitroso-2-(1H-pyridin-2-ylidene)acetate
→
~82%
55243-15-7
2-氨基-2-(2-吡啶)乙酸乙酯
2739-98-2
2-吡啶乙酸乙酯
138891-51-7
咪唑[1,5-A]吡啶-1-羧酸
119448-87-2
咪唑[1,5-A]嘧啶-1-羧酸乙酯