2-[(1-{(2R)-2-[(3S,6S)-6-(Carbamoylmethyl)-5,8-dioxo-12-oxa-4,7-diazabicyclo[11.2.2]heptadeca-1(15),13,16-trien-3-yl]-2-hydroxyethyl}(2S)pyrrolidin-2-yl)carbonylamino](3S)-N-((1S)-1-carbamoyl-2-methylpropyl)-3-methylpentanamide AIDS-050783 AIDS050783 Asn-Phe-Pro-Ile-Val Macrocylic deriv.