Ceramides, process for their preparation and their applications

Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Cosmetic – antiperspirant – dentifrice

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424450, 514579, 514738, 514846, 514847, A61K 700, A61K 748

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active

057736111

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.

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