5264-35-7
2-甲氧基-1-吡咯烷
+
1830-54-2
1,3-丙酮二羧酸二甲酯
→
~74%
37704-45-3
7-羟基-5-氧代-1,2,3,5-四氢吲哚嗪-8-羧酸甲酯
58156-35-7
1H-Indolizin-5-one, 2,3-dihydro-7-hydroxy