(S)-1-[(R)-2-((9S,12S)-9-Carbamoylmethyl-7,10-dioxo-2-oxa-8,11-diaza-bicyclo[12.2.2]octadeca-1(17),14(18),15-trien-12-yl)-2-hydroxy-ethyl]-pyrrolidine-2-carboxylic acid [(S)-1-((S)-1-carbamoyl-2-methyl-propylcarbamoyl)-2-methyl-butyl]-amide AIDS-050784 AIDS050784 Asn-Phe-Pro-Ile-Val Macrocylic deriv.