[N+:1]([C:4]1[CH:5]=[C:6]([CH:11]=[CH:12][C:13]=1[NH:14][C:15]([O:17][C:18]([CH3:21])([CH3:20])[CH3:19])=[O:16])[C:7]([O:9][CH3:10])=[O:8])([O-])=O>[Zn]>[NH2:1][C:4]1[CH:5]=[C:6]([CH:11]=[CH:12][C:13]=1[NH:14][C:15]([O:17][C:18]([CH3:21])([CH3:20])[CH3:19])=[O:16])[C:7]([O:9][CH3:10])=[O:8]The title compound was prepared from the methyl 3-nitro-4-((tert-butoxycarbonyl)amino)benzoate (Example A4; 3 mmol) by reduction with zinc according to the general procedure B. Obtained as a yellow solid (71%), MS (EI) 267 [(M+1)+].
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