2-(1-bromo-2,2,2-trifluoroethylidene)-1-(6-methylpyridin-2-yl)hydrazine

2-肼基-6-甲基吡嗪

三氟乙酸酐

2-氯-6-甲基吡嗪

2-甲基-6-肼基吡啶