AIDS-107371 AIDS107371 Ac-Asp-D-Glu-Glu-Leu-Ile-Cha-Cys-Pro-Cha-Asp-Leu-Pro-Tyr-Lys(Ac)-NH2 Ac-Asp-D-Glu-Glu-Leu-Ile-Cha-Cys-Pro-beta-Cyclohexylalanine-Asp-Leu-Pro