ethyl 8-methyl-3-nitroimidazo[1,2-a]pyridine-2-carboxylate

5-氯咪唑并[1,2-a]吡啶-2-羧酸乙酯

7-甲氧基咪唑并[2,1-b]苯并噻唑-2-羧酸乙酯

ethyl 3-(2-aminopyridin-1-ium-1-yl)-2-oxopropanoate,bromide

1,2,3,6-四氢氮杂革并[4,5-b]吲哚-5-羧酸乙酯