133683-30-4 AIDS-002079 AIDS002079 Asn-Sta-Ile-NH2 Butanediamide, 2-amino-N1-[4-[[1-(aminocarbonyl)-2-methylbutyl]amino]-2-hydroxy-1-(2-methylpropyl)-4-oxobutyl]-, [1S-[1R*[3R*,4R*(R*)],2R*]]-