New selenohydroxy acids and their derivatives applications in nutrition, cosmetics and pharmaceutics

摘要

The purpose of this invention is: new selenohydroxy acid compounds and their derivatives; their process for the preparation; use of the 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, RSUB1/SUB=OH, OCORSUB3/SUB, OPOSUB3/SUBHSUB2/SUB, OPO(ORSUB4/SUB)(ORSUB5/SUB), or ORSUB6/SUB, RSUB2/SUB=OH, RSUB3/SUB, or NHRSUB7/SUB, RSUB3/SUB=particularly alkoxyl (CSUB1/SUB-CSUB26/SUB), ceramide 1, ceramide 2, ceramide 3, ceramide 4, ceramide 5, ceramide 6a and 6b, S-cysteinyl, or S-glutathionyl, carnitoyl, lipids, polyols, ORSUB4/SUB=ORSUB5/SUB=particularly alkoxyl (CSUB1/SUB-CSUB26/SUB), ceramide 1, ceramide 2, ceramide 3, ceramide 4, ceramide 5, ceramide 6a and 6b, S-cysteinyl, or S-glutathionyl, carnitoyl, lipids, polyols, ORSUB6/SUB=pyruvate, lactate, citrate, fumarate, maleate, myristate, palmitate, stearate, palmitoleate, oleate, linoleate, natural fatty acids, or 13-cis retinoate, RSUB7/SUB=H, alkyl, natural amino acids, or natural amines.