AIDS-107357 AIDS107357 Ac-Asp-Glu-3,3-Diphenylalanine-Ile-beta-Cyclohexylalanine-Cys-Pro-beta-Cyclohexylalanine- Gln-Leu Ac-Asp-Glu-Dif-Ile-Cha-Cys-Pro-Cha-Gln-Leu