| 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, R<SUB>1</SUB>=OH, OCOR<SUB>3</SUB>, OPO<SUB>3</SUB>H<SUB>2</SUB>, OPO(OR<SUB>4</SUB>)(OR<SUB>5</SUB>), or OR<SUB>6</SUB>, R<SUB>2</SUB>=OH, R<SUB>3</SUB>, or NHR<SUB>7</SUB>, R<SUB>3</SUB>=particularly alkoxyl (C<SUB>1</SUB>-C<SUB>26</SUB>), ceramide 1, ceramide 2, ceramide 3, ceramide 4, ceramide 5, ceramide 6a and 6b, S-cysteinyl, or S-glutathionyl, carnitoyl, lipids, polyols, OR<SUB>4</SUB>=OR<SUB>5</SUB>=particularly alkoxyl (C<SUB>1</SUB>-C<SUB>26</SUB>), ceramide 1, ceramide 2, ceramide 3, ceramide 4, ceramide 5, ceramide 6a and 6b, S-cysteinyl, or S-glutathionyl, carnitoyl, lipids, polyols, OR<SUB>6</SUB>=pyruvate, lactate, citrate, fumarate, maleate, myristate, palmitate, stearate, palmitoleate, oleate, linoleate, natural fatty acids, or 13-cis retinoate, R<SUB>7</SUB>=H, alkyl, natural amino acids, or natural amines. |
