Pyrrolidine → 5-[3-(1-pyrrolidinylmethyl)phenyl]-3-(1-{[3-(1-pyrrolidinyl)propyl]sulfonyl}-4-piperidinyl)-1H-indole-7-carboxamide

Participants

Reaction Steps

To a solution of 5-(3-formylphenyl)-3-(1-{[3-(1-pyrrolidinyl)propyl]sulfonyl}-4-piperidinyl)-1H-indole-7-carboxamide (45.0 mg/0.086 mmol) in DCM/MeOH (1.0 ml/1.0 ml) was added pyrrolidine (0.043 mL, 0.517 mmol) and 1 drop of AcOH. The reaction mixture was stirred for 2 hr at r.t and then NaBH4 (17.0 mg, 0.086 mmol) was added. The reaction mixture was stirred for 30 min and concentrated and redissolved in 1.5 ml of DMSO. 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 (4 mg, 8%).

Provenance & Evidence