1071-46-1
丙二酸单乙酯
+
15516-47-9
(4-甲基苯氧基)乙酰氯
→
65910-98-7
ethyl 4-(4-methylphenoxy)-3-oxobutanoate
106-44-5
对甲酚
638-07-3
4-氯乙酰乙酸乙酯
65911-03-7
ethyl 3-hydroxy-4-(p-tolyloxy)butanoate