反应详情

Preparation of the title compound was carried out according to General Method 8 by using p-tolylhydrazine hydrochloride (10 g, 63 mmol), bromo acetonitrile (7.56 ml, 63 mmol), triethylamine (19.1 g, 189 mmol) and N-methyl-4-piperidone hydrochloride (2.54 g, 17 mmol) in ethanol (30 ml) to obtain 1.8 g of 2-(1,2,3,4-tetrahydro-2,8-dimethylpyrido[4,3-b]indol-5-yl)acetonitrile after purification on neutral alumina chromatography eluting with methanol-dichloromethane gradient. The TFA salt of this material was obtained by reverse-phase chromatography (C-18, 500 mm×50 mm, Mobile Phase A=0.05% TFA in water, B=0.05% TFA in acetonitrile, Gradient: 10% B to 80% B in 30 min, injection vol. 5 mL).