1,1-Dimethylethyl N-{2-[(3-nitro[1,5]naphthyridin-4-yl)amino]ethyl}carbamate → tert-butyl N-{2-[(3-amino[1,5]naphthyridin-4-yl)amino]ethyl}carbamate
Reaction equation
[N+:1]([C:4]1[CH:5]=[N:6][C:7]2[C:12]([C:13]=1[NH:14][CH2:15][CH2:16][NH:17][C:18](=[O:24])[O:19][C:20]([CH3:23])([CH3:22])[CH3:21])=[N:11][CH:10]=[CH:9][CH:8]=2)([O-])=O>[Pt].C(OCC)(=O)C>[NH2:1][C:4]1[CH:5]=[N:6][C:7]2[C:12]([C:13]=1[NH:14][CH2:15][CH2:16][NH:17][C:18](=[O:24])[O:19][C:20]([CH3:22])([CH3:21])[CH3:23])=[N:11][CH:10]=[CH:9][CH:8]=2Participants
4
Procedure
1,1-Dimethylethyl N-{2-[(3-nitro[1,5]naphthyridin-4-yl)amino]ethyl}carbamate (10 g, 0.03 mol), ethyl acetate (800 mL) and platinum on carbon catalyst were combined in a Parr bottle and then the mixture was hydrogenated overnight. The reaction mixture was filtered to remove the catalyst. The filtrate was concentrated under vacuum to provide 9.1 g of 1,1-dimethylethyl N-{2-[(3-amino[1,5]naphthyridin-4-yl)amino]ethyl}carbamate as a yellow syrup. Analysis: Calculated for C15H21N5O2+0.1 CH3CO2C2H5: %C, 59.25; %H, 7.04; %N, 22.43. Found: %C, 58.96; %H, 6.87; %N, 22.46.
Workup
- filtrationThe reaction mixture was filtered
- customto remove the catalyst
- concentrationThe filtrate was concentrated under vacuum
Sources & evidence
- ORD record
- ord-f9ba66e8e48a405e928dc0d06d30d6fe
- Source dataset
- uspto-grants-2004_02
- Patent number
- US06693113B2
Reaction notes
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