Cesium carbonate → {3-[(4-Chloro-benzyl)-(1-methyl-1H-pyrazole-3-sulfonyl)-amino]-phenoxy}-acetic acid tert-butyl ester

Reaction equation

Br[CH2:2][C:3]([O:5][C:6]([CH3:9])([CH3:8])[CH3:7])=[O:4].[Cl:10][C:11]1[CH:34]=[CH:33][C:14]([CH2:15][N:16]([C:26]2[CH:31]=[CH:30][CH:29]=[C:28]([OH:32])[CH:27]=2)[S:17]([C:20]2[CH:24]=[CH:23][N:22]([CH3:25])[N:21]=2)(=[O:19])=[O:18])=[CH:13][CH:12]=1.C(=O)([O-])[O-].[Cs+].[Cs+]>CN(C)C=O.C(OCC)(=O)C>[C:6]([O:5][C:3](=[O:4])[CH2:2][O:32][C:28]1[CH:29]=[CH:30][CH:31]=[C:26]([N:16]([CH2:15][C:14]2[CH:13]=[CH:12][C:11]([Cl:10])=[CH:34][CH:33]=2)[S:17]([C:20]2[CH:24]=[CH:23][N:22]([CH3:25])[N:21]=2)(=[O:19])=[O:18])[CH:27]=1)([CH3:9])([CH3:8])[CH3:7]