6326-90-5
ethyl 4-naphthalen-2-ylbutanoate
+
95-92-1
乙二酸二乙酯
→
7512-19-8
4,5-dihydronaphtho[1,2-e][2]benzofuran-1,3-dione
5723-54-6
naphtho[1,2-e][2]benzofuran-1,3-dione