PROCESS FOR THE PREPARATION OF (S)-4-METHYL-N-((S)-1-(((S)-4-METHYL-1-((R)-2-METHYLOXIRAN-2-YL)-1-OXO PENTAN-2-YL) AMINO)-1-OXO-3-PHENYLPROPAN-2-YL)-2-((S)-2-(2-MORPHOLINOACETAMIDO)-4-PHENYLBUTANAMIDO) PENTANAMIDE

摘要

Novel methods for preparation of Carfilzomib and intermediates thereof with high stereo selection are reported. The synthetic procedures result in substantially pure Carfilzomib (I).