HCID 23625640, compound → HCID 23625641, compound

Participants

Reaction Steps

4.7 g of N-tert-butoxycarbonyl-2(R)-methyl-4(S)-hydroxy-5(S)-amino-7(S)-isopropyl-8-(3-benzyloxy-4-methoxy-phenyl)-octanoic acid (N-butyl)amide are hydrogenated in 60 ml of methanol in the presence of 2.35 g of 10% Pd/C at room temperature and under normal pressure for 1 hour. Filtration of the reaction mixture and concentration of the filtrate by evaporation under a high vacuum yield the title compound: Rf (hexane/ethyl acetate=1:1)=0.15; FAB-MS (M+H)+ =509.

Provenance & Evidence