(2S)-methyl 2-((2S)-2-(tert-butoxycarbonylamino)-3-(4-(2-(tetrahydro-2H-pyran-2-yloxy)ethoxy)phenyl)propanamido)-3-(4-(trifluoromethyl)phenyl)propanoate

methyl (S)-2-((S)-2-amino-3-(4-(2-hydroxyethoxy)phenyl)propanamido)-3-(4-(trifluoromethyl)phenyl)propanoate hydrochloride

(S)-methyl 2-((S)-2-azido-N-(tert-butoxycarbonyl)-3-(4-(2-(tosyloxy)ethoxy)phenyl)propanamido)-3-(4-(trifluoromethyl)phenyl)propanoate