608142-93-4
tert-butyl 4-(3-nitro-4-pyridinyl)-1-piperazinecarboxylate
→
~97%
1023298-54-5
4-(3-氨基-4-吡啶)-1-哌嗪羧酸叔丁酯
13091-23-1
4-氯-3-硝基吡啶
+
57260-71-6
1-Boc-哌嗪