Hydrochloric Acid → Phenylmethyl (2S)-4-({2'-fluoro-5'-[({[3-(4-piperidinylmethyl)phenyl]carbonyl}amino) methyl]-3-biphenylyl}methyl)-2-methyl-1-piperazinecarboxylate

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Reaction Steps

To a solution of phenylmethyl (2S)-4-[(5′-{[({3-[(1-{[(1,1-dimethylethyl)oxy]carbonyl}-4-piperidinyl)methyl]phenyl}carbonyl)amino]methyl}-2′-fluoro-3-biphenylyl)methyl]-2-methyl-1-piperazinecarboxylate (673 mg, 0.90 mmol) in 5 mL of 1,4-dioxane was added 5 mL of 4M HCl in 1,4-dioxane. The mixture was stirred at room temperature for 30 min. After removal of the solvent, the crude was purified by Gilson reverse phase HPLC, eluting with acetonitrile/water/0.1% TFA (10/90 to 70/30, v/v, over 12 min), to give the title compound (390 mg, 67%). LC/MS: m/z, 649 (M+H), 1.69 min.

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