186581-53-3
重氮甲烷
+
583-80-2
2-hydroxy-6-methylcyclohepta-2,4,6-trien-1-one
→
90536-08-6
2,4,6-CYCLOHEPTATRIEN-1-ONE,2-HYDROXY-4-METHYL
90642-52-7
533-75-5
环庚三烯酚酮