Ethylamine → 3-(1-{[3-(dimethylamino)propyl]sulfonyl}-4-piperidinyl)-5-{3-[(ethylamino) methyl]phenyl}-1H-indole-7-carboxamide

Participants

Reaction Steps

To a solution of 3-(1-{[3-(dimethylamino)propyl]sulfonyl}-4-piperidinyl)-5-(3-formylphenyl)-1H-indole-7-carboxamide (25 mg, 0.05 mmol) in MeOH/CH2Cl2 (1 mL/1 mL) was added 2M ethyl amine in THF (0.15 mL, 0.30 mmol). The reaction mixture was stirred at room temperature for 2 hours before NaBH4 (12 mg, 0.3 mmol) was added. The reaction mixture was stirred at room temperature overnight and evaporated all the solvent. The residue was purified by using a Gilson semi-preparative HPLC system, eluting with 10% B to 80% B, where A=H2O (0.1% trifluoroacetic acid) and B=CH3CN (0.1% trifluoroacetic acid) pumped at 25 mL/min to give the title compound (11 mg, 52%)

Provenance & Evidence