Topical composition for skin
US6489291B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 4, 2000 |
| Grant date | Dec 3, 2002 |
| Priority date | — |
| Expiry date | Oct 4, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P17/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A topical skin composition containing a dipeptide compound represented by, formula (1) or a salt of the dipeptide: wherein R1 represents a, hydrogen atom, an alkyl group, an alkanoyl group, or —CH(R6)COOR7 (wherein R6 represents a hydrogen atom or a lower alkyl group, and R7 represents a hydrogen atom, a lower alkyl group, a lower alkenyl group, or an aralkyl group);R2 represents a hydrogen atom or an alkyl group which may have a substituent;R3 represents a lower alkyl group or a phenyl group;R4 represents a hydrogen atom or a lower alkyl group, and may form a heterocyclic ring together with R5 and an adjacent nitrogen atom;R5 represents a hydrogen atom, an alkyl group which may have a substituent, or an aralkyl group which may have a substituent, and may form the heterocyclic ring together with R4;X represents —COOR8 (wherein R8 represents a hydrogen atom, a lower alkyl group, a lower alkenyl group, or an aralkyl group) or —SO3H; andn is an integer of 0-4; and a pharmaceutically acceptable carrier therefor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.