Triethylamine → HCID 178505143, compound

Participants

Reaction Steps

To a stirred mixture of trans-4-{2-[4-(2,3-dihydro-furo[2,3-c]pyridin-7-yl)-piperazin-1-yl]-ethyl}-cyclohexylamine trihydrochloride (intermediate B) (70.4 mg, 0.16 mmol) in dichloromethane (1 ml) was added at room temperature triethylamine (89 mg, 123 μl, 880 μmol) and methanesulfonyl chloride (27.5 mg, 18.7 μl, 240 μmol). The mixture was allowed to stir at room temperature for 18 h, poured into ice/water (5 ml) and 1N sodium hydroxide solution (5 ml) and extracted with dichloromethane (2×15 ml). The combined organic layers were washed with brine (15 ml), dried (MgSO4) and evaporated. The crude material was further purified by flash chromatography on silica gel (dichloromethane/MeOH 9:1) and trituration with dichloromethane (1 ml) and heptane (5 mL) for 30 min to yield the title compound as an off-white solid (43 mg, 66%), MS (ISP) m/z=409.4 [(M+H)+], mp 220° C.

Provenance & Evidence