Methyl iodide → HCID 66571530, compound

Participants

Reaction Steps

To a solution of tert-butyl 4-(((trans-2-phenylcyclopropyl)amino)methyl)piperidine-1-carboxylate (Example 1, 100 mg, 0.303 mmol) in acetonitrile (2 ml) and N,N-dimethylformamide (DMF) (0.5 ml) was added potassium carbonate (125 mg, 0.908 mmol) followed by iodomethane (0.038 ml, 0.605 mmol). The reaction mixture was stirred for 4 hours at room temperature. The reaction mixture was evaporated. The oil was purified on preparative HPLC (5 to 70% AcCN: H2O gradient with 0.1% formic acid modifier). The fractions were collected. The combined fractions were neutralized with aq. NH4OH, concentrated and extracted with ethyl acetate. The organic layer was washed with brine, dried over MgSO4 and evaporated. The oil was dissolved in 2 mL of dioxane and 1 mL of HCl. The reaction mixture was heated under reflux for 15 min, and then evaporated to dryness. 4-(((trans-2-Phenylcyclopropyl)amino)methyl)piperidine (12 mg, 0.041 mmol, 13.41% yield) was isolated as a white solid. 1H NMR (400 MHz, METHANOL-d4) δ 7.35 (d, J=4.29 Hz, 2H), 7.14-7.30 (m, 3H), 3.47 (d, J=13.14 Hz, 2H), 3.35-3.42 (m, 2H), 3.12-3.27 (m, 2H), 3.09 (d, J=8.34 Hz, 3H), 2.89-3.05 (m, 1H), 2.77-2.89 (m, 1H), 2.04-2.52 (m, 3H), 1.83 (d, J=5.56 Hz, 1H), 1.37-1.73 (m, 3H); LC-MS Rt=0.38 min; MS (ESI): 245.2 [M+H]+.

Provenance & Evidence