Methanol → 5-(3-cyano-5-{[(2,2,2-trifluoroethyl)amino]methyl}phenyl)-3-[1-(ethylsulfonyl)-4-piperidinyl]-1H-indole-7-carboxamide trifluoroacetate

Participants

Reaction Steps

To a solution of 5-(3-cyano-5-formylphenyl)-3-[1-(ethylsulfonyl)-4-piperidinyl]-1H-indole-7-carboxamide (52 mg, 0.11 mmol) in dichloromethane (3 mL) and methanol (1 mL) was added 20 drops of acetic acid and 2,2,2-trifluoroethanamine (53 μL, 0.66 mmol). The mixture was stirred for 48 h followed by addition of sodium triacetoxyborohydride (140 mg, 0.66 mmol). The mixture was then stirred for 48 h. The resulting reaction was quenched with sodium biocarbonate and brine was added. The organic layer was separated and purified by Gilson Preparatory HPLC to give 3.6 mg of the title compound (6.0%).

Provenance & Evidence