| 摘要 |
The present invention relates to compounds comprising the general formula (I)in which Rand R, which may be identical or different, are selected from the group comprising -H or a linear or branched alkyl group having from 1 to 6 carbon atoms or together form an aromatic or aliphatic ring with 5 or 6 atoms; Y and Z, which may be identical or different, are selected from the group comprising -H, -OH, -COOH, -OR, -CH(OR)COOH, in which Ris selected from H, phenyl, benzyl, -CFor -CFCF, vinyl, allyl and a linear or branched alkyl group having from 1 to 6 carbon atoms. |
