(3S,4aS,8aS)-N-(tert-Butyl)-2-{(2R)-2-hydroxy-2-[(11S,14S)-14-isopropyl-13,16-dioxo-3,4,11,12,13,14,15,16-octahydro-2H,10H-6,9-etheno-1,5,12,15-benzodioxadiazacyclooctadecin-11-yl]ethyl}decahydroisoquinoline-3-carboxamide AIDS-059189 AIDS059189 Bz-Val-Phe-psi [CH(O)CH2]-DIQ-NH-tBu 18-member macrocylic