[N:1]1([C:7]2[N:8]=[CH:9][CH:10]=[C:11]3[CH:15]=[CH:14][O:13][C:12]=23)[CH2:6][CH2:5][NH:4][CH2:3][CH2:2]1.C(O)(=O)C.[H][H]>CO.[Pt](=O)=O>[N:1]1([C:7]2[N:8]=[CH:9][CH:10]=[C:11]3[CH2:15][CH2:14][O:13][C:12]=23)[CH2:2][CH2:3][NH:4][CH2:5][CH2:6]1A mixture of 7-(piperazin-1-yl)-furo[2,3-c]pyridine [CAS-No. 209160-83-8] (1 g, 4.92 mmol), platinum(IV) oxide (0.46 g, 4.32 mmol), acetic acid (2.3 ml) in MeOH (6.9 ml) was stirred in a hydrogen atmosphere at room temperature for 24 h. After removal of the catalyst by filtration the mixture was evaporated, the residue was dissolved in dichloromethane (70 ml), washed with 2N sodium carbonate solution (40 ml), dried (MgSO4) and evaporated to yield 7-(piperazin-1-yl)-2,3-dihydro-furo[2,3-c]pyridine as a light brown oil (0.96 g, 95%), MS (ISP) m/z=206.3 [(M+H)+].
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