ethyl N-(pyrazin-2-ylcarbamothioyl)carbamate

N,N-二甲基甲酰胺二甲基缩醛

3-(pyrazin-2-ylamino)-2H-1,2,4-oxadiazol-5-one

[1,2,4]噻唑并[1,5-a]吡嗪-2-胺

pyrazin-2-ylcyanamide