Synthesis of Peptides related to Tuftsin. II

Abstract

Several peptides, H-Arg-Pro-Lys-Thr-OH (I), H-Thr-Arg-Pro-Lys-OH (II), H-Thr-Arg-Pro-Arg-OH (III), H-Thr-Lys-Pro-Lys-OH (IV), H-Thr-Lys-Gly-Arg-OH (V), H-Thr-Lys-Pro-Orn-OH (VI), H-Thr-Orn-Pro-Arg-OH (VII), and H-Thr-Gly-Lys-Pro-Arg-OH (VIII), related to tuftsin were synthesized. I exhibited a phagocytosis-stimulating activity, to the same degree as tuftsin.