[F:1][C:2]1[CH:3]=[C:4]2[C:9](=[CH:10][C:11]=1[CH3:12])[C:8](=[O:13])[NH:7][CH:6]=[CH:5]2.C(=O)([O-])[O-].[Cs+].[Cs+].[CH3:20][O:21][C:22]1[CH:29]=[CH:28][C:25]([CH2:26]Cl)=[CH:24][CH:23]=1.O>CN(C=O)C.CCCCCCC.C(OCC)(=O)C>[F:1][C:2]1[CH:3]=[C:4]2[C:9](=[CH:10][C:11]=1[CH3:12])[C:8](=[O:13])[N:7]([CH2:26][C:25]1[CH:28]=[CH:29][C:22]([O:21][CH3:20])=[CH:23][CH:24]=1)[CH:6]=[CH:5]2To a solution of 9.17 g (51.8 mmol) of 6-fluoro-7-methyl-2H-isoquinolin-1-one in 80 ml of DMF were added 20.2 g (62.1 mmol) of cesium carbonate and then 8.92 g (56.9 mmol) of 4-methoxybenzylchloride. After stirring at room temperature for 90 minutes the reaction mixture was poured into 600 ml of water, stirred for 1 h, and then the precipitated product was isolated by suction. From the mother liquor additional producted was isolated by chromatography with heptane/ethyl acetate (80:20). The combined products were recrystallized from ethyl acetate and 8.39 g 6-fluoro-2-(4-methoxy-benzyl)-7-methyl-2H-isoquinolin-1-one were received.
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