Patent ID: 7355074

Claim:
A compound having the formula (I): wherein: n is an integer of from 0 to 12; R is acyclic alkyl of 3 to 12 carbons, cyclic alkyl of 5 to 12 carbons, cyclic alkyl of 5 to 12 carbons, aromatic group, an amino acid, or peptide groups; Râ€² is â€”H, acyclic alkyl of 1 to 12 carbons, cyclic alkyl of 5 to 12 carbons, cyclic alkyl of 5 to 12 carbons, aromatic, heterocyclic or peptide groups; and Râ€³ is â€”H, acyclic of 1 to 12 carbons, cyclic alkyl of 5 to 12 carbons, aromatic, heterocyclic or peptide groups.