| abstract |
(57) [Summary] (Modified) [Purpose] To provide a novel peptide compound useful as a drug or the like. [Structure] The peptide compound of the present invention is a compound represented by the following general formula (I). Embedded image [In the formula, A is Glu, γ-Glu, Asp, or β-As. p and X are Gly, Ala, Val, Leu, Ile, P he, Pro, Ser, Tyr, Hyp, Lys, Hi An amino acid residue selected from s, Asp, Glu and 5-HTP, Y represents an alkylene group having 2 to 6 carbon atoms or an alkylene group having 2 to 6 carbon atoms having a hydroxyl group. [Effect] Since the peptide compound of the present invention has central nervous actions such as sedative and analgesic actions, it is a useful compound as a drug for the purpose of improving mental symptoms, stimulating brain metabolism, sedative action and analgesic action. |