N-Cyclohexyl-N'-[3-({2-[(6-{[(2R)-2-(2,2-dimethyl-4H-1,3-benzodioxin-6-yl)-2-hydroxyethyl]amino}hexyl)oxy]ethoxy}methyl)phenyl]urea → N-Cyclohexyl-N'-{3-[(2-{[6-({(2R)-2-hydroxy-2-[4-hydroxy-3-(hydroxymethyl)phenyl]ethyl}amino)hexyl]oxy}ethoxy)methyl]phenyl}urea triacetate

Participants

Reaction Steps

A solution of N-cyclohexyl-N′-[3-({2-[(6-{[(2R)-2-(2,2-dimethyl-4H-1,3-benzodioxin-6-yl)-2-hydroxyethyl]amino}hexyl)oxy]ethoxy}methyl)phenyl]urea (0.138 g) in acetic acid (4 ml) and water (1 ml) were stirred under nitrogen at 70° C. for 45 min. The reaction mixture was cooled to room temperature before concentrating under vacuum and azeotroping with MeOH (3×10 ml) to give a residue which was purified by Biotage. Elution with 50:8:1 dichloromethane:EtOH:ammonia followed by solvent evaporation in vacuo gave the title compound (0.126 g). LCMS RT=2.65 min, ES+ve 558 (MH)+.

Provenance & Evidence