3424-43-9
2-甲基-6-氧代-1-2,6-二氢-3-羧酸乙酯
→
~90%
1196145-86-4
ethyl 6-bromo-2-methylpyridine-3-carboxylate
53256-25-0
626-34-6
3-氨基巴豆酸乙酯