Patent ID: 7812152

Claim:
Cyclodextrin derivative corresponding to formula (I): in which: R 1 corresponds to formula (II): —NH-E-AA-(L 1 ) p (L 2 ) q (II) in which: E represents a linear or branched, saturated or unsaturated hydrocarbon-based group comprising from 1 to 15 carbon atoms and optionally comprising one or more hetero atoms; AA represents the residue of an amino acid; L 1 and L 2 , which may be identical or different, correspond to formula (IV): -G 2 -Y, in which G 2 represents a —CO—, —NH— or —NR— group where R is an C 1 to C 6 alkyl group, while Y represents a C 8 to C 18 linear alkyl chain; p and q, which may be identical or different, are integers equal to 0 or to 1, on the condition however that at least one of these integers is other than 0; R 2 represents a hydrogen atom, a methyl group, an isopropyl group, a hydroxypropyl group or a sulphobutyl ether group; R 3 represents a hydrogen atom or is identical to R 2 , except when R 2 is a hydroxypropyl group; all the R 4 represent either a hydroxyl group, or R 2 , except when R 2 is a hydroxypropyl group, or else one or more R 4 are identical to R 1 and the other R 4 represent(s) either a hydroxyl group, or R 2 , except when R 2 is a hydroxypropyl group; n is an integer equal to 5, 6 or 7.