72583-83-6
1-甲基-3-氨基-吡唑并[3,4-b]吡啶
→
~57%
116855-06-2
3-chloro-1-methylpyrazolo[3,4-b]pyridine
6602-54-6
2-氯-3-氰基吡啶
14906-64-0
3-氰基吡啶氮氧化物