"1,2,4-Triazolo[4,3-a]pyrazine-3-carboxylic acid ethyl ester "
"1,2,4-Triazolo[4,3-a]pyrazine-3-carboxylic acid ethyl ester "
"1,2,4-Triazolo[4,3-a]pyrazine-3-carboxylic acid ethyl ester "
1,2,4-三唑并[4,3-a]吡嗪-3-甲酸乙酯
1,2,4-三唑并[4,3-a]吡嗪-3-甲酸乙酯
1,2,4-三唑并[4,3-a]吡嗪-3-甲酸乙酯
1,2,4-三唑并[4,3-a]吡嗪-3-甲酸乙酯
1,2,4-三唑并[4,3-a]吡嗪-3-甲酸乙酯
1,2,4-三唑并[4,3-a]吡嗪-3-甲酸乙酯
1,2,4-三唑[4,3-A]吡嗪-3-羧酸乙酯