2-(3-{(1R)-1-Hydroxy-2-[(3-methylbutyl)(phenylsulfonyl)amino]ethyl}(3S,6S)-4,7-diaza-12-oxa-5,8-dioxobicyclo[11.2.2]heptadeca-1(15),13,16-trien-6-yl)acetamide AIDS-050801 AIDS050801 Asn-Phe Macrocylic deriv.