英文别名ethyl 3-hydroxypyrido[2,3-b]pyrazine-2-carboxylate; Pyrido[2,3-b]pyrazine-2-carboxylic acid, 3,4-dihydro-3-oxo-, ethyl ester; 3-oxo-3,4-dihydro-pyrido[2,3-b]pyrazine-2-carboxylic acid ethyl ester; 3-Oxo-3,4-dihydro-pyrido[2,3-b]pyrazin-2-carbonsaeure-aethylester 
