Patent · US Expired

Memory enhancing peptides

US5618791A · kind A · utility

5Cited by
5References
13Claims
0Family size

Assignee

Inventor

  • Yu Du · Hangzhou City, CN

Key dates

Filing dateAug 6, 1993
Grant dateApr 8, 1997
Priority date—
Expiry dateAug 6, 2013

Classification

  • Technology area (CPC A)Human Necessities
  • CPC primaryA61K38/00
  • WIPO fieldPharmaceuticals
  • WIPO sectorChemistry

Abstract

The invention is a class of memory enhancing peptides having the general formula: EQU R.sub.1 --Asn--X.sub.1 --X.sub.2 --X.sub.3 --R.sub.2 where PA0 R.sub.1 =pyroglutamyl, acetyl, H, peptidyl PA0 X.sub.1 =Ala, Ile, Leu, Tyr, Phe, Val, Trp, Cyt, Hme PA0 X.sub.2 =Pro, Leu, Ile, Val provided that when X.sub.2 is Pro, X.sub.1 is not Cyt or Ala; PA0 X.sub.3 =Arg PA0 R.sub.2 =OH, NH.sub.2, OR.sub.3, glycyl PA0 and PA0 R.sub.3 =C.sub.1-6 alkyl.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.