Eicosatriynoic acid esters and their application in pharmaceutical and cosmetic practice
US5066427A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 22, 1989 |
| Grant date | Nov 19, 1991 |
| Priority date | — |
| Expiry date | Sep 22, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D317/20
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Compound, corresponding to the formula EQU C.sub.8 H.sub.17 (C.tbd.C--CH.sub.2).sub.3 CH.sub.2 CH.sub.2 COR (I) in which R is a C.sub.1 -C.sub.8 lower alkoxy or C.sub.4 -C.sub.6 cycloaly group, substituted with one or more hydroxyl groups and/or interrupted by one or more hetero atoms chosen from oxygen and sulphur, an amino group of structure ##STR1## in which R.sub.1 or R.sub.2, which may be identical or different, denote a hydrogen atom or a linear or branched C.sub.1 -C.sub.8 lower alkyl radical, optionally interrupted by one or more hetero atoms chosen from oxygen, sulphur and nitrogen, this alkyl radical being able to be substituted with one or more hydroxyl groups, R.sub.1 and R.sub.2 not being able to denote hydrogen simultaneously, or alternatively R.sub.1 and R.sub.2 form, together with the nitrogen atom, a heterocyclic system optionally containing oxygen, sulphur or nitrogen as an additional hetero atom, one of the radicals R.sub.1 and R.sub.2 also being able to denote, when the other is a hydrogen atom, an aryl radical of formula (II): ##STR2## or alternatively a benzyl radical of formula (III): ##STR3## in which formulae R.sub.3 and R.sub.4, denote, independently of ea…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.