Trifluoroacetic acid → 2-(1,2,3,4-Tetrahydro-2,8-dimethylpyrido[4,3-b]indol-5-yl)-1-morpholino ethanone

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Reaction Steps

To a solution of 2-(1,2,3,4-tetrahydro-2,8-dimethylpyrido[4,3-b]indol-5-yl) acetic acid (100 mg, 0.38 mmol) in DCM (10 ml) was added DCC (95 mg, 0.46 mmol), DMAP (56 mg, 0.46 mmol), and stirred for 5 min at RT, morpholine (1 ml, 11.5 mmol) was added and stirred at 25 deg C. for 14 h. The reaction mixture was concentrated to dryness and The resulting crude was purified 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) to obtain 10 mg (Yield 5.8%) of 2-(1,2,3,4-tetrahydro-2,8-dimethylpyrido[4,3-b]indol-5-yl)-1-morpholino ethanone as TFA salt.

Provenance & Evidence