[CH2:1]([O:8][C:9]1[CH:14]=[CH:13][C:12]([CH2:15][C:16]([N:18]2[CH2:23][CH2:22][C:21]3[CH:24]=[C:25]([CH2:27][N:28]([CH3:30])[CH3:29])[O:26][C:20]=3[CH2:19]2)=[O:17])=[CH:11][C:10]=1[O:31][CH3:32])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[ClH:33]>CO.C(OCC)(=O)C>[ClH:33].[CH2:1]([O:8][C:9]1[CH:14]=[CH:13][C:12]([CH2:15][C:16]([N:18]2[CH2:23][CH2:22][C:21]3[CH:24]=[C:25]([CH2:27][N:28]([CH3:30])[CH3:29])[O:26][C:20]=3[CH2:19]2)=[O:17])=[CH:11][C:10]=1[O:31][CH3:32])[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=12-(4-Benzyloxy-3-methoxy-phenyl)-1-(2-dimethylaminomethyl-5,7-dihydro-4H-furo[2,3-c]pyridin-6-yl)ethane-1-one 0.197 g was dissolved in 2 ml of methanol; hydrogen chloride in ethyl acetate was added in excess, followed by stirring. After this mixture was concentrated, diethyl ether was added; the resulting solid was filtered and washed with diethyl ether to yield the desired product.
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