1-{(2R)-2-[(10S,13S)-13-(2-Amino-2-oxoethyl)-12,15-dioxo-2,3,10,11,12,13,14,15-octahydro-9H-5,8-ethenonaphtho[2,3-e][1,4,8,11]dioxadiazacycloheptadecin-10-yl]-2-hydroxyethyl}-N-(tert-butyl)-L-prolinamide 2-Napth-Asn-Phe-.psi.-(COHCH2N)-Pro-NH-tbut 17-member macrocyclic AIDS-059183 AIDS059183