AIDS-032544 AIDS032544 N-(3-cis-(2(R)-(N-(tert-Butyl)-carbamoyl)cyclohexyl)-2(R)-hydroxy-1(S)-benzylpropyl)-3-carbamoyl-2-((phenylmethoxy)carbonylamino)propanamide Ro 31-8959 c-HexCONH analog, cis isomer