Acetic Acid → HCID 178474973, compound

Participants

Reaction Steps

To a stirred mixture of Trans-4-[2-(4-Benzo[1,3]dioxol-4-yl-piperazin-1-yl)-ethyl]-cyclohexylamine trihydrochloride (Intermediate A) (50 mg, 0.136 mmol) in DMF (1 ml) was added N,N-diisopropylethylamine (62 mg, 0.0831 ml, 0.476 mmol), acetic acid (9.8 mg, 9.33 μl, 0.163 mmol) and TBTU (52.4 mg, 0.163 mmol). The mixture was allowed to stir at room temperature for 4 h and poured into ice/water (0.5 ml). The crude reaction mixture was concentrated in vacuo. The reaction mixture was solved with sat NaHCO3 (1×10 mL). and extracted with dichloromethane (2×20 mL). The organic layers were dried over MgSO4 and concentrated in vacuo. The crude material was purified by flash chromatography (silica gel, 100 g, 0% to 20% MeOH in dichloromethane) to yield the title compound as an off-white solid (53 mg, 62%), MS (ISP) m/z=374.3 [(M+H)+].

Provenance & Evidence