NOVEL MEMBRANE PERMEABLE PEPTIDE

摘要

PROBLEM TO BE SOLVED: To provide: a novel cell membrane permeable peptide that is useful as a drug delivery carrier; and a non-natural type amino acid that constitutes the same.SOLUTION: Provided are: a non-natural type amino acid represented by the following formula (I); and an oligopeptide in which at least 20% or more of all amino acid residues are derived from said non-natural type amino acid. (nis 1 to 3; nis 1 to 6; Rto Rare H or a protecting group for amino group; Ris H, a protecting group for amino group or the like; Ris an amino acid residue or the like.).SELECTED DRAWING: None