Anti-heparin peptides

A compound exhibiting anti-heparin activity, of general formula 1:

• Z-Bm-(AXA)x-Bn-(AXA)y-Bo-(AXA)z-Bp
• in which
• *Z has the general formula:
• 17
• with
• Cy=-covalent bond
• —CH2—
• —CO—
• —CO—S—
• —(CH2)n—X—
• with 1≦n≦2 and X=O—, S—,
• 18
• with
• Cx=-covalent bond
• —(CH2)n—, 1≦n≦5
• or
• 19
• with R1=—OH, —NH2
• *B represents a basic amino acid;
• m, n, o and p represent, independently of one another, an integer of between 2 and 4.
• *AXA represents a hydrocarbon-based chain corresponding to the formula:
• —NH—(CH2)n—CO—, n being an integer of between 2 and 6;
• x, y and z represent, independently of one another, an integer of between 1 and 6.