[NH2:1][C:2]1[CH:27]=[CH:26][C:5]2[CH2:6][CH2:7][C:8]3[C:9]([C:23]([NH2:25])=[O:24])=[N:10][N:11]([C:13]4[CH:18]=[CH:17][C:16]([O:19][O:20][S:21][NH2:22])=[CH:15][CH:14]=4)[C:12]=3[C:4]=2[CH:3]=1.CN1C(=O)CCC1>C1(C(C)C)C=CC=CC=1.[Pd]>[NH2:1][C:2]1[CH:27]=[CH:26][C:5]2=[CH:6][CH:7]=[C:8]3[C:12]([N:11]([C:13]4[CH:18]=[CH:17][C:16]([O:19][O:20][S:21][NH2:22])=[CH:15][CH:14]=4)[N:10]=[C:9]3[C:23]([NH2:25])=[O:24])=[C:4]2[CH:3]=1The product of Example 4b (1 g) and 5% Pd/C (300 mg) suspended in cumene (50 mL) and NMP (5 mL) was heated at reflux for 16 h. The mixture was then filtered and concentrated. The residue was diluted with methanol (10 mL) and added to water, after 1 h the resulting precipitate was collected by filtration and dried to yield the title compound (0.9 g).
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