1541171-67-8

(αS)-α-[[2-(4-Morpholinyl)acetyl]amino]benzenebutanoyl-L-leucyl-N-[(1S,3S)-4-chloro-3-hydroxy-3-methyl-1-(2-methylpropyl)-2-oxobutyl]-L-phenylalaninamide is an impurtiy of Carfilzomib (C183460) which is a second-generation proteasome inhibitor that is used as a treatment in relapsed and refractory multiple myeloma.