Centre National De La Recherche Scientifique

Qian Wang-Zhu

Pierre Potier

Joanna Bakala

Gisèle Franck

Nobumichi Andre Sasaki

Maria Concepcion Achab Garcia Alvarez

Lioudmila Ermolenko

Naima Bakrim Nhiri

Naiema Bakrim Nhiri

Pierre (deceased) Potier

Nobumichi André Sasaki

Naïma Bakrim Nhiri

The invention relates to a compound having general formula I, wherein: X represents CH, C&#x2550;O, C&#x2550;S or CHOH, Rrepresents an amino acid optionally substituted by one or more halogen atoms, or by one or more CFgroups and n=0.1 or 2, or Rrepresents a peptide containing two amino acids, each amino acid being optionally substituted by one or more halogen atoms, or by one or more CFgroups and n=0 or 1, or XRrepresent POH or SOH and n=0.1 or 2; Rrepresents H, XR1, an alkyl group at C-C, an aralkyl group at C-Cor an aryl group, whereby the alkyl, aralkyl and aryl groups can be substituted by an amine NH, a carboxylic group COOH, one or more halogen atoms. 

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Qian Wang-Zhu