79099-07-3
N-叔丁氧羰基-4-哌啶酮
+
95-92-1
乙二酸二乙酯
→
~73%
518990-24-4
2-氧代-2-(1-Boc-4-氧代-3-哌啶)乙酸乙酯
518990-23-3
5-叔丁基-3-乙基-1,4,6,7-四氢-5H-吡唑并[4,3-c]吡啶-3,5-二羧酸