C([N:8]1[CH2:13][CH2:12][CH:11]([NH:14][C:15]([C:17]2[NH:18][C:19]3[C:24]([CH:25]=2)=[C:23]([O:26][C:27]2[CH:32]=[CH:31][C:30]([CH3:33])=[CH:29][CH:28]=2)[CH:22]=[CH:21][CH:20]=3)=[O:16])[CH2:10][CH2:9]1)C1C=CC=CC=1.Cl>CO.[Pd]>[NH:8]1[CH2:13][CH2:12][CH:11]([NH:14][C:15]([C:17]2[NH:18][C:19]3[C:24]([CH:25]=2)=[C:23]([O:26][C:27]2[CH:28]=[CH:29][C:30]([CH3:33])=[CH:31][CH:32]=2)[CH:22]=[CH:21][CH:20]=3)=[O:16])[CH2:10][CH2:9]1Pd—C (1 g) is placed into a flask filled with argon and covered with methanol. 186 (1.4 g, 3.2 mmol) is dissolved in 100 ml of methanol and 1.6 ml of 2M HCl and added. After hydrogenation at room temperature for 5 h the mixture is filtrated over celite and evaporated.
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