Sodium cyanoborohydride → 1-Isopropyl-8-(phenylsulfonyl)-1,3,4,8-tetrahydro-2H-[1,4]oxazepino[6,7-e]indole

Participants

Reaction Conditions

Reaction Steps

To 1-isopropyl-8-(phenylsulfonyl)-3,8-dihydro-4H-[1,4]oxazepino[6,7-e]indole (Intermediate 38, 120 mg, 0.330 mmol) dissolved in EtOH (5 mL), NaCNBH3 (41 mg, 0.65 mmol) was added and the reaction mixture was heated at 70° C. for 30 minutes. The reaction was quenched by addition of water and the solvent was removed under reduced pressure. The crude product was purified by preparative HPLC (XTerra C18, 50 mM NH4HCO3 pH 10-CH3CN) to give the title compound (35 mg). MS m/z 371 [M+H]+.

Provenance & Evidence