1-{(2S)-2-[(9S,12S)-9-(2-Amino-2-oxoethyl)-7,10-dioxo-2-oxa-8,11-diazabicyclo[12.2.2]octadeca-1(16),14,17-trien-12-yl]-2-hydroxyethyl}-L-prolylisoleucyl-L-valinamide AIDS-050807 AIDS050807 Asn-Phe-Pro-Ile-Val Macrocylic deriv.