[C:1]([O:5][C:6](=[O:19])[NH:7][C:8]1[CH:13]=[C:12](Cl)[C:11]([Cl:15])=[CH:10][C:9]=1[N+:16]([O-:18])=[O:17])([CH3:4])([CH3:3])[CH3:2].[CH2:20]([NH:24][CH3:25])[CH:21]([CH3:23])[CH3:22]>CS(C)=O>[C:1]([O:5][C:6](=[O:19])[NH:7][C:8]1[CH:13]=[C:12]([N:24]([CH2:20][CH:21]([CH3:23])[CH3:22])[CH3:25])[C:11]([Cl:15])=[CH:10][C:9]=1[N+:16]([O-:18])=[O:17])([CH3:4])([CH3:3])[CH3:2]The title compound was prepared from (4,5-dichloro-2-nitro-phenyl)-carbamic acid tert.-butyl ester (Example B2) (5.0 g, 16.3 mmol) and N-isobutyl-methylamine (7.09 g, 81.4 mmol) in DMSO (50 mL) at RT according to the general procedure C. Obtained as a brown oil (5.79 g, 99%).
Wird geladen…