Patent ID: 7745413

Claim:
A compound of the following formula (I): wherein: n is equal to 0 or 1, p represents an integer varying from 1 to 6, r represents an integer varying from 1 to 12, R 1 and R′ 1 represent independently of each other an atom or a group selected from the group consisting of: a hydrogen atom, an alkyl group comprising from 1 to 6 carbon atoms, and an aromatic group, or and the is optionally substituted with one group selected from the group consisting of: an alkyl group comprising from 1 to 6 carbon atoms and an aromatic group, R 2 represents a side chain of an amino acid or an amino acid derivative, R 3 represents a group derived from a carboxylic acid, carrying a basic entity, selected from the group consisting of: R 4 represents an alkyl group comprising from 1 to 10 carbon atoms, a phenyl group substituted by an alkyl group comprising from 1 to 10 carbon atoms, and A represents a hydrogen atom, a protective group or a tracer group selected from the group consisting of: a fluorophore, a dye or a “quencher”.