4934-95-6
(2-氧代环戊基)-乙酸甲酯
+
107-21-1
乙二醇
→
~96%
66806-62-0
methyl 2-(1,4-dioxaspiro[4.4]nonan-9-yl)acetate
7148-07-4
1-(1-吡咯烷)环戊烯