81033-31-0
6,7-dimethoxy-4(1H)-Cinnolinone
+
73563-23-2
3-bromo-6,7-dimethoxyphthalide
→
81023-06-5
1-(4,5-dimethoxy-3-oxo-1H-2-benzofuran-1-yl)-6,7-dimethoxycinnolin-4-one