methyl (S)-3-nitro-4-[2-[3-methoxy-4-[N'-(2-methylphenyl)ureido]phenyl acetylamino]-1-propoxy]benzoate → methyl (S)-3-amino-4-[2-[3-methoxy-4-[N'-(2-methylphenyl) ureido]phenylacetylamino]-1-propoxy]benzoate

Participants

Reaction Steps

A stirred solution of methyl (S)-3-nitro-4-[2-[3-methoxy-4-[N′-(2-methylphenyl)ureido]phenylacetylamino]-1-propoxy]benzoate (310 mg, 0.56 mmol) in MeOH—THF (10 mL, 1:1, v/v) was hydrogenated over 5% Pd—C (50 mg, 16 wt %) overnight. The mixture was filtered to remove the catalyst and the filtrate was evaporated to give methyl (S)-3-amino-4-[2-[3-methoxy-4-[N′-(2-methylphenyl)ureido]phenylacetylamino]-1-propoxy]benzoate (240 mg) as a gum.

Provenance & Evidence