Collection of Traceable Compounds and Uses Thereof

A compound of the following formula (I):

• in which:
• 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,
• R1 and R′1 represent independently of each other an atom or a group chosen from the group consisting of:
• a hydrogen atom, an alkyl group comprising from 1 to 6 carbon atoms, and an aromatic group,
• or R1 and R′1 can form a ring comprising from 2 to 4 carbon atoms,
• R2 represents a side chain of an amino acid or an amino acid derivative,
• R3 represents a group derived from a carboxylic acid, carrying a basic entity, chosen from the following
• R4 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 is chosen from the group consisting of:
• a hydrogen atom, a protective group, and a tracer group chosen from the group consisting of:
• a fluorophore, a dye, and a “quencher”.

A method for the in vitro determination, by binding studies, of ligands of receptors no ligand of which is known or no ligand of which is known that can be used in order to carry out specific affinity binding studies, comprising the use of a collection of compounds corresponding to the following general formula (I):

• in which:
• 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,
• R1 and R′1 are independently of each other chosen from the group consisting of:
• a hydrogen atom, an alkyl group comprising from 1 to 6 carbon atoms, and an aromatic group,
• or R1 and R′1 can form a ring comprising from 2 to 4 carbon atoms,
• R2 represents a side chain of an amino acid or an amino acid derivative,
• R3 represents a group derived from a carboxylic acid, carrying a basic entity, chosen from the following groups:
• R4 is chosen from the group consisting of:
• 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 chosen from the group consisting of:
• a fluorophore, a dye, and a “quencher”.