(1-{(2R)-2-[(3S,6S)-6-(Carbamoylmethyl)-5,8-dioxo-12-oxa-4,7-diazabicyclo[11.2.2]heptadeca-1(16),13(17),14-trien-3-yl]-2-hydroxyethyl}(2S)pyrrolidin-2-yl)-N-((2S)-1-carbamoyl-2-methylbutyl)carboxamide AIDS-050785 AIDS050785 Asn-Phe-Pro-Ile Macrocylic deriv.