Piperidine → Piperidin-1-yl-[5-(tetrahydro-pyran-4-yl)-thiophen-3-yl]-methanone

Participants

Reaction Steps

5-(Tetrahydro-pyran-4-yl)-thiophene-3-carboxylic acid (0.107 g, 0.5 mmol) was dissolved in DMF (2 mL). DIPEA (1.0 mmol), HATU (0.5 mmol) and piperidine (0.5 mmol) were added and the reaction stirred at room temperature for 1 hour. The reaction was then partitioned between ethyl acetate and water and the organic solution separated and dried over magnesium sulphate, filtered and the solvent evaporated. The product was purified by HPLC, eluting with 40%-90% acetonitrile in water (0.1% formic acid) over 30 minutes. The fractions containing the desired product were concentrated under vacuum to give the title compound (74 mg). LCMS m/z 280.22 [M+H]+ RT=8.77 min (Analytical Method 1). 1H NMR δ (ppm)(CHCl3-d): 7.25 (s, 1H), 6.9 (t, 1H), 4.1-4.0 (m, 2H), 3.6 (m, 4H), 3.5 (m, 2H), 3.1-3.0 (m, 1H), 1.95-1.6 (m, 10H).

Provenance & Evidence