5205-39-0
戊二酸单乙酯酰氯
+
996-82-7
sodium 1,3-diethoxy-1,3-dioxopropan-2-ide
→
92373-14-3
triethyl 2-oxopentane-1,1,5-tricarboxylate
40420-22-2
3-氧庚二酸二乙酯