3-(2-{6-methyl-2-oxo-3-(benzyloxycarbonylamino)-2H-pyridin-1-yl}-acetylamino)-3(S)-pyridin-3-yl-propionic acid ethyl ester → 3-(2-{6-methyl-2-oxo-3-amino-2H-pyridin-1-yl}-acetylamino)-3(S)-pyridin-3-yl-propionic acid ethyl ester

Participants

Reaction Steps

##STR54## To a degassed solution of the pyridone 16-5 (243 mg; 0.49 mmol) in EtOH (20 mL) was added 10% Pd on carbon (25 mg) and this was then stirred under an atmosphere of hydrogen gas (balloon) for 3 hours. The mixture was filtered through a pad of celite and the solvent removed to give the title compound (16-6) as a viscous oil which was used as such in the next step.

Provenance & Evidence