2-Amino-3,5-dibromopyrazine3,5-Dibromopyrazin-2-amine2-Amino-3,5-dibromo-1,4-diazine3,5-dibromopyrazin-2-amine2-氨基-3,5-二溴吡嗪3,5-Dibromopyrazin-2-ylamine2-Amino-3,5-dibromopyrazine3,5-Dibromo-2-aminopyrazine3,5-Dibromo-2-pyrazinamine3,5-Dibromopyrazine-2-ylamine