(2S)-N-{(1S,2R)-2-Hydroxy-3-[(3-methylbutyl)(phenylsulfonyl)amino]-1-benzylpropyl}-3-carbamoyl-2-(2-quinolylcarbonylamino)propanamide AIDS-032539 AIDS032539 N-(Hydroxyethyl)sulfonamide, Quin-Asn-Phe deriv.