127749-90-0 AIDS-000698 AIDS000698 L-Proline, 1-[2-hydroxy-4-phenyl-3-[[(phenylmethoxy)carbonyl]amino]butyl]-, 1,1-dimethylethyl ester, [R-(R*,S*)]- Z.Phe.psi.[CH(OH)CH2N]Pro-O-tert-Bu tert-Butyl (2S)-1-{(3S,2R)-2-hydroxy-4-phenyl-3-[(phenylmethoxy)carbonylamino]butyl}pyrrolidine-2-carboxylate