英文别名2-Chloro-pyrido[2,3-d]pyrimidin-4-ol; 2-chloro-1H-pyrido[2,3-d]pyrimidin-4-one:hydrochloride; 2-chloropyrido[2,3-d]pyrimidin-4(1H)-one; 2-Chloropyrido[2,3]pyrimidin-4(1H)-one hydrochloride; 2-chloro-1H-pyrido[2,3-d]pyrimidin-4-one; 2-chloro-4-oxo-3,4-dihydropyrido[2,3-d]pyrimidine hydrochloride; 2-chloro-pyrido[3,2-e]pyrimidin-4-ol 
