Phenyl isocyanate → 1-(4-benzylbenzyl)-4-[[N-(3-(trifluoromethyl)benzoyl)glycyl]aminomethyl]piperidine

Participants

Reaction Conditions

Reaction Steps

A chloroform (1.0 mL) solution of methanesulfonyl chloride (4.2 mg, 0.037 mmol) and a (piperidinomethyl)polystyrene (54 mg, 2.7 mmol base/g resin) were added to a chloroform (1.0 mL) solution of 4-(benzyl)benzyl alcohol (8.7 mg, 0.044 mmol), and the resulting mixture was stirred at 25° C. for 15 hours. 4-[[N-(3-(Trifluoromethyl)benzoyl)glycyl]aminomethyl]piperidine (15.1 mg, 0.044 mmol) and KI (2 mg) were then added to the reaction mixture, and the resulting mixture solution was further stirred at 65° C. for 5 hours. Phenyl isocyanate (5.2 mg) was added to the cooled reaction mixture, and the obtained mixture was stirred at 25° C. for 1 hour. The resulting reaction mixture was loaded onto a Varian™ SCX column and washed with methanol (20 mL). The obtained crude product was eluted with a 2 M methanol solution of NH3 (5 mL) and concentrated to thereby afford 1-(4-benzylbenzyl)-4-[[N-(3-(trifluoromethyl)benzoyl)glycyl]aminomethyl]piperidine (Compd. No. 926) as an off-white oil (5.6 mg, 29%). The purity was determined by RPLC/MS (94%). ESI/MS m/e 524.1 (M++H, C30H32F3N3O2).

Provenance & Evidence