D-PHE-PIP-ARG-PNA

D-Phe-Pip-Arg-pNA (Pippipecolyl)

D-PHE-L-PIPECOLYL-ARG P-NITROANILIDE*TRI ACETATE

H-D-Phe-Pip-Arg-pNA · 2 acetate, H-D-Phe-L-pipecolyl-Arg-pNA · 2 acetate