[NH:1]1[C:9]2[C:4](=[CH:5][CH:6]=[C:7]([CH:10]([C:14]3[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=3)[CH2:11][C:12]#[N:13])[CH:8]=2)[CH:3]=[CH:2]1.[H-].[H-].[H-].[H-].[Li+].[Al+3]>C1COCC1>[NH:1]1[C:9]2[C:4](=[CH:5][CH:6]=[C:7]([CH:10]([C:14]3[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=3)[CH2:11][CH2:12][NH2:13])[CH:8]=2)[CH:3]=[CH:2]1To a 0° C. solution of 3-(1H-indol-6-yl)-3-phenyl-propionitrile XIII (1.1 g, 4.5 mmol) in THF (35 ml) was slowly added a suspension of LiAlH4 (0.51 g, 13 mmol) in THF (10 ml). The mixture was stirred 10 min at 0° C. and 10 minutes at room temperature, then it was refluxed for 1.5 hours. The reaction mixture was cooled to 0° C., quenched by the careful addition of freshly ground Na2SO4.10H2O (25 g), filtered, and the solid was washed with EtOAc. The filtrate was concentrated and purified via flash chromatography (DCM/MeOH/NH4OH) affording 3-(1H-indol-6-yl)-3-phenyl-propylamine XIV as a colorless oil (0.68 g, 62% yield).
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