Sodium hydride → 2-[2-(5-Bromo-2-fluoro-phenyl)-3,3-difluoro-2-(2-nitro-benzenesulfonylamino)-propoxy]-2-methyl-propionic acid tert-butyl ester

Reaction equation

[OH:1][C:2]([CH3:11])([CH3:10])[C:3]([O:5][C:6]([CH3:9])([CH3:8])[CH3:7])=[O:4].[H-].[Na+].[Br:14][C:15]1[CH:16]=[CH:17][C:18]([F:39])=[C:19]([C:21]2([CH:36]([F:38])[F:37])[CH2:23][N:22]2[S:24]([C:27]2[CH:32]=[CH:31][CH:30]=[CH:29][C:28]=2[N+:33]([O-:35])=[O:34])(=[O:26])=[O:25])[CH:20]=1>CN(C=O)C.C1COCC1>[C:6]([O:5][C:3](=[O:4])[C:2]([O:1][CH2:23][C:21]([C:19]1[CH:20]=[C:15]([Br:14])[CH:16]=[CH:17][C:18]=1[F:39])([NH:22][S:24]([C:27]1[CH:32]=[CH:31][CH:30]=[CH:29][C:28]=1[N+:33]([O-:35])=[O:34])(=[O:26])=[O:25])[CH:36]([F:38])[F:37])([CH3:11])[CH3:10])([CH3:9])([CH3:8])[CH3:7]