tert-butyl N-({4'-[(1-benzofuran-2-ylsulfonyl)oxy]-1,1'-biphenyl-4-yl}sulfonyl)-D-valinate

tert-butyl N-[(4'-{[(1-benzofuran-2-ylcarbonyl)amino]methyl}-1,1'-biphenyl-4-yl)sulfonyl]-D-valinate

(R)-2-(4'-Cyano-biphenyl-4-sulfonylamino)-3-methyl-butyric acid