21047-57-4
Phosphonic acid, (1-diazo-2-oxopropyl)-, diethyl ester
+
59379-02-1
1-Boc-3-吡咯烷甲醛
→
~72%
287193-00-4
3-乙炔-1-吡咯烷羧酸-1,1-二甲基乙酯