[CH3:1][C@H:2]1[NH:7][C@@H:6]([CH3:8])[CH2:5][N:4]([CH2:9][C:10]2[CH:14]=[CH:13][N:12]([C:15]3[C:16]([N:21]4[CH2:26][CH2:25][CH:24]([NH:27][C:28]5[CH:33]=[CH:32][C:31]([F:34])=[CH:30][CH:29]=5)[CH2:23][CH2:22]4)=[N:17][CH:18]=[CH:19][CH:20]=3)[N:11]=2)[CH2:3]1.[ClH:35].C(OCC)C>C(Cl)Cl>[ClH:35].[CH3:1][C@H:2]1[NH:7][C@@H:6]([CH3:8])[CH2:5][N:4]([CH2:9][C:10]2[CH:14]=[CH:13][N:12]([C:15]3[C:16]([N:21]4[CH2:22][CH2:23][CH:24]([NH:27][C:28]5[CH:33]=[CH:32][C:31]([F:34])=[CH:30][CH:29]=5)[CH2:25][CH2:26]4)=[N:17][CH:18]=[CH:19][CH:20]=3)[N:11]=2)[CH2:3]1E1 (0.42 g, 0.91 mmol) was taken up in DCM (10 ml) and 1.2M HCl in diethylether (0.76 ml, 0.91 mmol) was added. Removal of the solvent in vacuo yielded the title compound as a yellow solid (0.45 g), δH (DMSO-d6) 1.08 (6H, d), 1.83 (2H, d), 2.07 (2H, br t), 2.72 (2H, t), 2.95 (2H, br d), 3.16 (2H, d), 3.25 (3H, br s), 3.64 (2H, s), 5.38 (1H, br d), 6.45 (1H, s), 6.56 (2H, br s), 6.88 (2H, t), 7.03 (1H, m), 7.69 (1H, d), 8.12 (1H, s), 8.26 (2H, m), 9.09 (1H, br s).
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