4-(Piperazin-1-yl)furo[3,2-c]pyridine → HCID 178474979, compound

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Reaction Steps

To a solution under N2 of commercially available 4-piperazine-1-yl-furo[3,2-c]pyridine [CAS-Nr. 81078-84-4] (125 mg, 0.62 mmol) in 1,2-dichloroethane (1.25 ml) were added trans-N-[4-(2-oxo-ethyl)-cyclohexyl]-acetamide [CAS-Nr. 946599-01-5, WO 2007/093540] (124 mg, 0.68 mmol) and 3 drops of MeOH. The resulting yellow solution was stirred 18 h at room temperature before addition of Na(AcO)3BH (196 mg, 0.92 mmol). After stirring 18 h at room temperature the reaction mixture was partitioned between sat. aq. NaHCO3 sol. (50 ml) and EtOAc (50 ml). The aqueous layer was extracted with more EtOAc (2×25 ml). The combined organic layers were washed with H2O (40 ml) and brine (40 ml) and dried over MgSO4. After evaporation of the solvent, the crude product (yellow crystals) was purified by flash chromatography on silica gel (CH2Cl2/MeOH, 100:0 to 95:5) to yield the title compound as light yellow crystals (95 mg, 42%), MS (ISP) m/z=371.2 [(M+H)+].

Provenance & Evidence