20845-23-2
1-甲基-2-氧代-1,2-二氢吡啶-4-羧酸甲酯
→
~80%
102000-68-0
2-氧代-1,2-二氢吡啶-4-羧酸肼
7630-02-6
methyl 1-methylpyridin-1-ium-4-carboxylate,iodide
111961-69-4
4-isopropyloxycarbonyl-1-methylpyridinium iodide
33972-97-3
1-甲基-2-氧代-1,2-二氢吡啶-4-羧酸
125294-42-0
propan-2-yl pyridine-4-carboxylate
55-22-1
异烟酸
98996-29-3
ethyl 1-methyl-2-oxopyridine-4-carboxylate