英文别名5,6,7,8-Tetrahydro-[1,2,4]triazolo[4,3-a]pyrazine-3-carboxylic acid ethyl ester; 1,2,4-Triazolo[4,3-a]pyrazine-3-carboxylic acid, 5,6,7,8-tetrahydro-, ethyl ester; Ethyl 5,6,7,8-tetrahydro-[1,2,4]triazolo[4,3-a]pyrazine-3-carboxylate; Ethyl 5,6,7,8-tetrahydro[1,2,4]triazolo[4,3-a]pyrazine-3-carboxylate; 5,6,7,8-TETRAHYDRO-1,2,4-TRIAZOLO[4,3-A]PYRAZINE-3-CARBOXYLIC ACID ETHYL ESTER; ethyl 5H,6H,7H,8H-[1,2,4]triazolo[4,3-a]pyrazine-3-carboxylate