AIDS-221617 AIDS221617 NH2-Arg-Arg-Trp-Cys(x2)-Tyr-Lys-Arg-Cys(x1)-Tyr-Lys-Gly-Tyr-Cys(x1)-Tyr-Lys-Arg-Cys(x2)-Arg-NH2 Polyphemusin deriv.