AIDS-105831 AIDS105831 CGP64222 deriv N-6-Aminohexylglycine-N-guanidopropylglycine-N-guanidoprolyglycine-N-isobutylglycine-N-guanidopropylglycine-D-arginine-amino NH2-Nahg-Narg-Narg-N-glycine-Narg-Darg-NH2 deriv