Pyridine → HCID 22141371, compound

To a solution of 3-[6-methyl-3-(3-phenylpropyl)-3-azabicyclo[3.1.0]hex-6-yl]phenylamine (Preparation 8, 110 mg, 0.36 mmol) in dichloromethane (4 ml), at 0° C. under nitrogen was added pyridine (56 μl, 0.72 mmol) then dropwise over 5 minutes ethanesulfonylchloride (67 μl, 92 mg, 0.72 mmol). The mixture was allowed to warm to room temperature and was stirred for 16 hours. Further pyridine (56 μl, 0.72 mmol) and ethanesulfonylchloride (67 μl, 92 mg, 0.72 mmol) were added and the mixture was stirred for 2 hours. The crude mixture was purified by silica (40 g) column chromatography eluting with 80:20:1 ethyl acetate:hexane:ammonia solution (0.880). Product-containing fractions were combined and concentrated in vacuo to give the title compound as a colourless oil (48 mg, 34%).