81979-94-4
methyl 1S-cis-2,2-dimethyl-3-(2-oxo-2-phenylethyl)cyclopropane carboxylate
→
76725-50-3
4,4-dimethyl-5-phenacyloxolan-2-one
63721-05-1
3,3-二甲基-4-戊烯酸甲酯
+
98-88-4
苯甲酰氯