Triethylamine → HCID 11465106, compound

Participants

Reaction Steps

To a solution of (1R)-2-[4-(2-Methoxy-phenyl)-piperazin-1-yl]-1-pyridin-2-ylmethyl-ethylamine (1.06.; 3.2 mmol, from Example 13) in dichloromethane (40 mL) at 0° C. was added triethylamine (0.90 mL; 6.5 mmol) and a solution of 1-methyl-1-cyclohexanecarbonyl chloride (520 mg.; 3.2 mmol) in dichloromethane (6 mL). The reaction mixture was stirred while allowing to warm to ambient temperature over 1 hour, washed sequentially with saturated aqueous NaHCO3 and brine, dried over MgSO4, filtered, and the solvent removed in vacuo. The crude residue was purified by flash chromatography on silica gel (2% methanol/chloroform) to yield the free base of the title compound as a clear oil (1.0 g.; 70%). Treatment with an equimolar amount of fumaric acid in ethanol afforded the fumarate salt as a white amorphous solid, m.p. 135–139° C.; MS (+) FAB [M+H]+ @ m/z 451; 1H NMR, 400 MHz, DMSO-d6. Analysis for C27H38N4O2.C4H4O4 Calculated: C, 65.70; H, 7.47; N, 9.89 Found: C, 65.29; H, 7.69; N, 9.77

Provenance & Evidence