Compounds derived from diaminopyrazole substituted by a heteroaromatic radical and their use in oxidation dyeing of keratinous fibers
US7056354B2 · kind B2 · utility
15Cited by
2References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 9, 2002 |
| Grant date | Jun 6, 2006 |
| Priority date | — |
| Expiry date | Sep 3, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D495/04
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The invention concerns compounds derived from diaminopyrazole of formula (I), wherein: Ar is a 5- or 6-membered heteroaromatic radical capable of being condensed with one or several heteroaromatic cycles each comprising 5 or 6 members, and their physiologically acceptable addition salts with and acid. The invention also concerns compositions containing such a compound for oxidation dyeing of keratinous fibers and the method using said compositions
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.