Acetic Acid → HCID 178490621, compound

Participants

Reaction Steps

Prepared according to the method described in Example 1(g) above from (R)-Nω,Nω '-bis(Cbz)-N2 -(diphenylacetyl)-(S)-N-[1-(4-methoxyphenyl)ethyl]-arginine amide (2.8 g; from step (e) above), 10% Pd/C (1.5 g), and, instead of HOAc, MeOH (225 mL) and concentrated HCl (21 mL) under hydrogen, 18 hours reaction time, which gave the crude product (1.8 g). Crystallization from MeOH:diethyl ether then from isopropanol:diethyl ether afforded the sub-title compound as a white solid (0.75 g).

Provenance & Evidence