Per-(3-6-anhydro)cyclodextrins derivatives, preparation and use thereof for separating ions

US6559135B2 · kind B2 · utility

Assignees

• COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES · FR
• CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE · FR

Inventors

• Andree Gadelle · Meylan, FR
• Florence Fauvelle · Grenoble, FR
• Jean-Claude Debouzy · La Terrasse, FR

Key dates

• Filing date: Nov 28, 2001
• Grant date: May 6, 2003
• Expiry date: Nov 28, 2021

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C02F2101/22
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

The invention concerns derivatives of per-(3,6-anhydro)-cyclodextrin, their preparation, and their use in separating polluting ions, for example in human decontamination. These derivatives correspond to one of the following formula: in which at least one of the R1 groups represents the group —OCH2COOH and the other R1 groups, which may be identical or different, represent a group that corresponds to one of the following formula: OH, OR2, SH, SR2, OCOR2, NH2, NHR2, NR2R3, CONH2, CONHR2, CONR2R3, CN, COOR2, COOH and R2, in which R2 and R3, which may be identical or different, represent an aliphatic or aromatic hydrocarbon group, either saturated or unsaturated, which may include one or several hetero-atoms comprising O, S and N, and n is equal to 6, 7 or 8.