Ceramides, process for their preparation and their applications in the cosmetic and dermopharmaceutical fields
US5773611A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 26, 1997 |
| Grant date | Jun 30, 1998 |
| Priority date | — |
| Expiry date | Feb 26, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q5/06
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The invention relates to ceramides of formula: ##STR1## where R.sub.1 denotes a C.sub.11 to C.sub.21 alkyl or alkenyl radical; R.sub.2 denotes a C.sub.11 -C.sub.19 hydrocarbon radical, which is linear and carries one or more ethylenic unsaturations, and in particular one or two, or a mixture of C.sub.11 -C.sub.19 hydrocarbon radicals, which are linear, saturated or carry one or more ethylenic unsaturations, and in particular one or two, in which the proportion of saturated radicals cannot exceed 35%, these compounds being in the form of a racemic mixture of the erythro and threo diastereoisomers in the erythro:threo proportions of 85:15 to 60:40. The invention also relates to the process for preparing the compounds as well as their applications in the cosmetic and dermopharmaceutical fields.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.