37538-68-4
吡啶并[3,2-d]嘧啶-2,4(1H,3H)-二酮
→
~92%
39551-54-7
2,4-二氯吡啶并[3,2-d]嘧啶
656801-64-8
methyl 3-isocyanatopyridine-2-carboxylate
24195-07-1
2-(甲氧基羰基)烟酸
699-98-9
2,3-吡啶二羧酸酐
27507-08-0
3-(4-methoxybenzyl)pyrido[3,2-d]pyrimidine-2,4(1H,3H)-dione
50608-99-6
3-氨基吡啶-2-甲酰胺
1462-86-8
3-氨基吡啶-2-羧酸