AIDS-107338 AIDS107338 Ac-Asp-Glu-3,3-Diphenylalanine-Ile-beta-Cyclohexylalanine-Cys(Me)-Ala-Ser-His-Leu-NH2 Ac-Asp-Glu-Dif-Ile-Cha-Cys(Me)-Ala-Ser-His-Leu-NH2