Water → t-butyl 4-[6-(N-cyclopentylmethylcarbamoyl)-3-formylindol-1-ylmethyl]3-methoxybenzoate

Reaction equation

[CH:1]1([CH2:6][NH:7][C:8]([C:10]2[CH:18]=[C:17]3[C:13]([C:14]([CH:19]=[O:20])=[CH:15][NH:16]3)=[CH:12][CH:11]=2)=[O:9])[CH2:5][CH2:4][CH2:3][CH2:2]1.Br[CH2:22][C:23]1[CH:35]=[CH:34][C:26]([C:27]([O:29][C:30]([CH3:33])([CH3:32])[CH3:31])=[O:28])=[CH:25][C:24]=1[O:36][CH3:37].C(=O)([O-])[O-].[K+].[K+].O>CN(C)C=O>[CH:1]1([CH2:6][NH:7][C:8]([C:10]2[CH:18]=[C:17]3[C:13]([C:14]([CH:19]=[O:20])=[CH:15][N:16]3[CH2:22][C:23]3[CH:35]=[CH:34][C:26]([C:27]([O:29][C:30]([CH3:33])([CH3:31])[CH3:32])=[O:28])=[CH:25][C:24]=3[O:36][CH3:37])=[CH:12][CH:11]=2)=[O:9])[CH2:5][CH2:4][CH2:3][CH2:2]1