Bromide ion → 6-Methoxy-2-methyl-1H-indol-3-carboxylic acid methylamide

Reaction equation

[Br-:13].[CH2:20]1[O:21][CH2:22][CH2:23][CH2:24]1.[CH3:14][Mg+:15].[CH3:16][N:17]=[C:18]=[O:19].[CH3:1][O:2][c:3]1[cH:4][cH:5][c:6]2[cH:7][c:8]([CH3:12])[nH:9][c:10]2[cH:11]1.[Cl-:25].[Cl-:27].[Zn+2:26]>>[CH3:1][O:2][c:3]1[cH:4][cH:5][c:6]2[c:7]([C:18]([NH:17][CH3:16])=[O:19])[c:8]([CH3:12])[nH:9][c:10]2[cH:11]1