Triethylamine → HCID 25261976, compound

Participants

Reaction Conditions

Reaction Steps

1-(3-Methanesulfonyl-propyl)-piperazine (30 mg, 0.11 mmol, prepared as described in Fotouhi, N. et al. WO 2005110996) was suspended in 5 mL of methylene chloride and cooled to 0° C. Triethylamine was added followed by drop wise addition of rac-(4S*,5R*)-2-(6-tert-butyl-4-ethoxy-pyridin-3-yl)-4,5-bis-(4-chloro-phenyl)-4,5-dimethyl-4,5-dihydro-imidazole-1-carbonyl chloride in 2 mL of methylene chloride. The mixture was stirred at room temperature for 30 min and then taken up in methylene chloride and washed successively with 10% sodium hydrogen carbonate and water. The methylene chloride phase was dried over anhydrous sodium sulfate, filtered and concentrated under reduced pressure. Purification by chromatography on silica gel eluting with methylene chloride/methanol (95:5) gave rac-[(4S*,5R*)-2-(6-tert-butyl-4-ethoxy-pyridin-3-yl)-4,5-bis-(4-chloro-phenyl)-4,5-dimethyl-4,5-dihydro-imidazol-1-yl]-[4-(3-methanesulfonyl-propyl)-piperazin-1-yl]-methanone as a white solid (16 mg). HR-MS (ES, m/z) calculated for C37H48N5O4SCl2 [(M+H)+] 728.2799, observed 728.2793.

Provenance & Evidence