Process of preparing a peptide epoxyketone immunoproteasome inhibitor, and precursors thereof

摘要

Disclosed herein are methods for preparing [(2S,3R)—N-[(2S)-3-(cyclopent-1-en-1-yl)-1-[(2R)-2-methyloxiran-2-yl]-1-oxopropan-2-yl]-3-hydroxy-3-(4-methoxyphenyl)-2-[(2S)-2-[2-(morpholin-4-yl)acetamido]propanamido]propanamide (compound “G”): and precursors thereof.;