New selenohydroxy acids and their derivatives applications...

C - Chemistry – Metallurgy – 07 – F

Patent

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C07F 11/00 (2006.01)

Patent

CA 2574629

The purpose of this invention is: - new selenohydroxy acid compounds and their derivatives; - their process for the preparation; - use of the said new compounds as precursors of L(+).-selenomethionine and/or source of selenium in human or animal nutrition, in cosmetics and pharmaceutics; - and nutritional, cosmetic and pharmaceutical compositions containing them. The new compounds that are the subject of this invention satisfy the general formula (I) in which n=0, 1 or 2, R1= OH, OCOR3, OPO3H2, OPO(OR4)(OR5), or OR6, R2= OH, R3, or NHR7, R3= particularly alkoxyl (C1-C26), ceramide 1, ceramide 2, ceramide 3, ceramide 4, ceramide 5, ceramide 6a and 6b, S-cysteinyl, S-glutathionyl, carnitoyl, lipids, polyols, OR4 = OR5 = particularly alkoxyl (C1-C26), ceramide 1, ceramide 2, ceramide 3, ceramide 4, ceramide 5, ceramide 6a and 6b, S-cysteinyl, S-glutathionyl, carnitoyl, lipids, polyols, OR6= pyruvate, lactate, citrate, fumarate, maleate, myristate, palmitate, stearate, palmitoleate, oleate, linoleate, natural fatty acids, or 13-cis retinoate R7 = H, alkyl, natural amino acids, or natural amines.

La présente invention concerne de nouveaux composés à base d'acide d'hydroxyde de sélénium et leurs dérivés ; leur procédé de préparation : l'utilisation de ces nouveaux composés en tant que précurseurs de la L(+)-sélénométhionine et/ou en tant que source de sélénium dans les domaines alimentaire, cosmétique et pharmaceutique ; ainsi que des compositions alimentaire, cosmétiques et pharmaceutiques contenant ces composés. Les nouveaux composés de la présente invention sont représentés par la formule générale (I). Dans cette formule, n vaut 0, 1 ou 2, R1 désigne un groupe OH, OCOR3, OPO3H2, OPO(OR4)(OR5), OR6, R2 désigne un groupe OH, R3 ou NHR7, R3 désigne un groupe alcoxyl (C1-C26), un céramide 1, un céramide 2, un céramide 3, un céramide 4, un céramide 5, un céramide 6a et 6b, un groupe S-cystéinyl, S-glutathionyl, carnitoyl, des lipides, des polyols, OR4=OR5 et désigne un groupe alcoxyl (C1-C26), un céramide 1, un céramide 2, un céramide 3, un céramide 4, un céramide 5, un céramide 6a et 6b, un groupe S-cystéinyl, S-glutathionyl, carnitoyl, des lipides, des polyols, OR6 désigne un groupe pyruvate, lactate, citrate, fumarate, maléate, myristate, palmitate, stéarate, palmitoléate, oléate, linoléate, des acides gras naturels, ou un groupe 13-cis rétinoate, R7 désigne un groupe H, alkyle, des acides aminés naturels ou des amines naturelles.

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