[Cl:1]C1C=CC(N)=CC=1C.[Br:10][C:11]1[CH:16]=[C:15](C)[C:14]([CH3:18])=[CH:13][C:12]=1[N:19](C(C)C)[C:20]([CH:22]1[CH2:27][CH2:26][N:25]([C:28]([O:30][C:31]([CH3:34])([CH3:33])[CH3:32])=[O:29])[CH2:24][CH2:23]1)=[O:21]>>[Br:10][C:11]1[CH:16]=[C:15]([Cl:1])[C:14]([CH3:18])=[CH:13][C:12]=1[NH:19][C:20]([CH:22]1[CH2:27][CH2:26][N:25]([C:28]([O:30][C:31]([CH3:34])([CH3:33])[CH3:32])=[O:29])[CH2:24][CH2:23]1)=[O:21]Tert-butyl 4-{[(2-bromo-4-chloro-5-methylphenyl)amino]carbonyl}-piperidine-1-carboxylate 2-5 was prepared from 4-chloro-3-methylaniline 2-1 following a similar procedure to that described for 4-{[(2-bromo-4,5 dimethylphenyl)(isopropyl)amino]carbonyl}piperidine-1-carboxylate 1-12.
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