19178-25-7
3,4-二氢吡啶[3,4-D]嘧啶-4-酮
→
88128-94-3
N-[4-(1H-imidazol-2-yl)pyridin-3-yl]formamide
51752-67-1
4-氯-吡啶[3,4-D]嘧啶