[N+:1]([C:4]1[CH:13]=[CH:12][CH:11]=[C:10]2[C:5]=1[CH:6]=[CH:7][N:8]([C@H:15]([C:19]1[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=1)[C:16]([NH2:18])=[O:17])[C:9]2=[O:14])([O-])=O.CO>[Pd]>[NH2:1][C:4]1[CH:13]=[CH:12][CH:11]=[C:10]2[C:5]=1[CH:6]=[CH:7][N:8]([C@H:15]([C:19]1[CH:20]=[CH:21][CH:22]=[CH:23][CH:24]=1)[C:16]([NH2:18])=[O:17])[C:9]2=[O:14]A round bottom flask was charged with (R)-2-(5-nitro-1-oxoisoquinolin-2(1H)-yl)-2-phenylacetamide (2.3 g, 0.0071 mol), methanol (30 mL, 0.7 mol) and palladium, 10% weight on charcoal (110 mg, 0.00090 mol) was added and the flask is evacuated of air and stirred under hydrogen atmosphere (1 atm) for 1.5 hours. The reaction mixture was filtered over celite and the solvent removed under pressure. The residue was purified by flash chromatography (40 g silica gel, 0-10% MeOH/DCM) to obtain the product as a light yellow solid. MS m/z=294.5(M+H).
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