Azepane → HCID 42644590, compound

Participants

Reaction Steps

4-(4-Carboxy-thiophen-2-yl)-piperidine-1-carboxylic acid benzyl ester (0.095 g, 0.27 mmol) was dissolved in DMF (2 mL). DIPEA (0.54 mmol), HATU (0.27 mmol) and homopiperidine (0.27 mmol) were added and the reaction stirred at room temperature for 1 hour. The reaction mixture was partitioned between ethyl acetate and water. The organic solution was separated and dried with magnesium sulphate, filtered and the solvent removed under vacuum. The residue 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 (0.032 g). LCMS m/z 427.29 [M+H]+ RT=12.22 min (Analytical Method 1). 1H NMR (400 MHz, CHCl3-d): δ 7.4-7.35 (m, 4H), 7.35-7.3 (m, 1H), 7.25 (s, 1H), 6.9 (s, 1H), 5.15 (s, 2H), 4.3 (m, 2H), 3.6 (m, 2H), 3.5 (m, 2H), 3.00-2.90 (m, 3H), 2.0 (m, 2H), 1.8 (m, 2H), 1.75-1.5 (m, 8H).

Provenance & Evidence