C([O:3][C:4](=[O:26])[CH2:5][NH:6][C@H:7]1[CH2:12][CH2:11][C@@H:10]([O:13][C:14]2[CH:15]=[C:16]3[C:21](=[CH:22][C:23]=2[Cl:24])[C:20](=[O:25])[NH:19][CH:18]=[CH:17]3)[CH2:9][CH2:8]1)C>CO>[Cl:24][C:23]1[CH:22]=[C:21]2[C:16]([CH:17]=[CH:18][NH:19][C:20]2=[O:25])=[CH:15][C:14]=1[O:13][C@@H:10]1[CH2:9][CH2:8][C@H:7]([NH:6][CH2:5][C:4]([OH:26])=[O:3])[CH2:12][CH2:11]1185 mg of [4-(7-chloro-1-oxo-1,2-dihydro-isoquinolin-6-yloxy)-cis-cyclohexylamino]-acetic acid ethyl ester (23, crude product) were dissolved in 2 ml methanol. After adding 2 ml of 2 N NaCO3-solution, the solution was stirred at room temperature for 1.5 h. The solvent was evaporated in vacuo and the residue was purified by preparative HPLC, which delivers the title compound as trifluoro acetate. Rt=0.91 min (Method B). Detected mass: 351.3 (M+H+).
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