Sodium Hydroxide → HCID 178442041, compound

Participants

Reaction Steps

600 mg (1.86 mmol) of TBTU and 0.45 ml of triethylamine are added to a solution containing 330 mg (1.86 mmol) of desamino-histidine hydrochloride in 5 ml of dimethylformamide. After stirring for 15 minutes, 590 mg (1.55 mmol) of (R)-2-amino-3-(4-methoxyphenyl)-1-(3-pentyl-3-(4-fluorophenyl)azetidin-1-yl)-propan-1-one dissolved in 5 ml of dimethylformamide are added. The reaction medium is stirred at ambient temperature for 3 days. The reaction is stopped by adding a 1N solution of sodium hydroxide and then extracted with a 1/1 heptane/ethyl acetate mixture. The organic phases are combined and dried over sodium sulphate. After filtration, the solvents are evaporated off and the residue is then purified by silica gel chromatography (eluent 85/15 dichloromethane/methanol). 490 mg of N-[(R)-2-[3-(4-fluorophenyl)-3-pentylazetidin-1-yl]-1-(4-methoxybenzyl)-2-oxoethyl]-3-(1H-imidazol-4-yl)-propionamide are obtained in the form of a white powder with a yield of 61%.

Provenance & Evidence