Cl[CH:2]1[NH:7][CH2:6][CH2:5][N:4]2[C:8]([CH2:11][CH3:12])=[N:9][N:10]=[C:3]12>CO.O=[Pt]=O.[Pd]>[CH2:11]([C:8]1[N:4]2[CH2:5][CH2:6][NH:7][CH2:2][C:3]2=[N:10][N:9]=1)[CH3:12]To a solution of 8-chloro-3-ethyl[1,2,4]triazolo[4,3-a]piperazine (2.24 g) in MeOH (150 mL) was added PtO2 (1.36 g) and 10% Pd/C (0.63 g) at rt. The reaction mixture was stirred under H2 for 16 h at room temperature and filtered, and the filtrate was concentrated in vacuo and the residue was chromatographed with a silica gel column to give the title compound (0.71 g, 31.17%). The compound was characterized by the following spectroscopic data: MS (ESI, pos. ion) m/z: 153.2 (M+1).
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