541-47-9
3,3-二甲基丙烯酸
+
14501-64-5
2-羟基咔唑-3-羧酸
→
113425-43-7
2,2-dimethyl-3,10-dihydropyrano[2,3-b]carbazol-4-one
113425-44-8
3,3-dimethyl-2,3-dihydropyrano[3,2-a]carbazol-1(11H)-one