ethyl 2-prop-1-en-2-yl-1,3-oxazole-4-carboxylate

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

ethyl 2-oxo-3-quinolin-1-ium-1-ylpropanoate,bromide

(3-aminoquinolin-2-yl) ethyl carbonate

7-甲基-5,6,7,8-四氢咪唑并[1,2-a]吡嗪-2-羧酸乙酯