Potassium Carbonate → 5-(4-Ethoxy-3-methoxy-2-(4-(methylsulfonyl)benzyloxy)phenyl)isobenzofuran-1(3H)-one

Reaction equation

[CH2:1]([O:3][C:4]1[CH:9]=[CH:8][C:7]([C:10]2[CH:11]=[C:12]3[C:16](=[CH:17][CH:18]=2)[C:15](=[O:19])[O:14][CH2:13]3)=[C:6]([OH:20])[C:5]=1[O:21][CH3:22])[CH3:2].C(=O)([O-])[O-].[K+].[K+].Br[CH2:30][C:31]1[CH:36]=[CH:35][C:34]([S:37]([CH3:40])(=[O:39])=[O:38])=[CH:33][CH:32]=1>C(#N)C>[CH2:1]([O:3][C:4]1[CH:9]=[CH:8][C:7]([C:10]2[CH:11]=[C:12]3[C:16](=[CH:17][CH:18]=2)[C:15](=[O:19])[O:14][CH2:13]3)=[C:6]([O:20][CH2:30][C:31]2[CH:32]=[CH:33][C:34]([S:37]([CH3:40])(=[O:39])=[O:38])=[CH:35][CH:36]=2)[C:5]=1[O:21][CH3:22])[CH3:2]