((S)-2-(2-morpholinoacetamido)-4-phenylbutanoyl)-L-leucyl-L-phenylalanine

Lithium (S)-2-((S)-4-Methyl-2-((S)-2-(2-morpholinoacetamido)-4-phenylbutanamido)pentanamido)-3-phenylpropanoate is the salt form of (S)-2-((S)-4-Methyl-2-((S)-2-(2-morpholinoacetamido)-4-phenylbutanamido)pentanamido)-3-phenylpropanoic Acid (M320448) an intermediate for Carfilzomib (C183460), which is a second-generation proteasome inhibitor that is used as a treatment in relapsed and refractory multiple myeloma.