英文别名
6-Carbethoxy-4-ethylpyrazolo<1,5-a>pyrimidin-7-on;4-ethyl-7-oxo-4,7-dihydro-pyrazolo[1,5-a]pyrimidine-6-carboxylic acid ethyl ester;Ethyl 4,7-dihydro-4-ethyl-7-oxo-pyrazolo[1,5-a]pyrimidine-6-carboxylate;Ethyl 4-ethyl-7-oxopyrazolo[1,5-a]pyrimidine-6-carboxylate