Triethylamine → 5-(2-fluorophenethyl)-2,3,4,5-tetrahydro-2,8-dimethyl-1H-pyrido[4,3-b]indole

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Preparation of the title compound was carried out according to General Method 8. p-Tolylhydrazine hydrochloride (500 mg, 3.1 mmol), 2-fluorophenyl ethyl bromide (639 mg, 3.1 mmol), triethyl amine (313 mg, 3.1 mmol) and N-methyl-4-piperidone hydrochloride (692 mg, 4.6 mmol) were combined in ethanol (2 ml) to obtain 30 mg of 5-(2-fluorophenethyl)-2,3,4,5-tetrahydro-2,8-dimethyl-1H-pyrido[4,3-b]indole after purification on neutral alumina using ethyl acetate-hexane gradient. The free base was converted into its oxalate salt by treatment of oxalic acid (1 equiv) in anhydrous THF.

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