Patent ID: 7282521

Claim:
A compound of Formula I: wherein: R is a substituent of the formula: wherein: R′ and R″ are the same or different, are hydrogen atoms or alkyl radicals, X is a bond or represents a carbamoyl, N-methylcarbamoyl, aminocarbonyl or N-methylaminocarbonyl radical, Y is a bond or represents a phenylene radical, R o and R oo are the same or different, and are hydrogen atoms or alkyl radicals, or R o is hydroxyl, hydroxyalkyl, phenyl, benzyl, carbamoylmethyl or else, when Y is a bond and X is carbamoyl, R o can form a 5- or 6-membered ring with the nitrogen atom contained in X, it being possible for this ring to additionally comprise another hetero atom chosen from oxygen or sulphur and, n, m and p are each integers from 0 to 16, and m+n+p is between 4 and 16; or R is a substituent of the formula where R″, R o , R oo , X, Y, n, m and p are as given above and Z is an amino acid radical joined to the adjacent nitrogen atom by a peptide bond to the amino terminus of the amino acid radical; R 1 is a C 2 to C 20 substituted or unsubstituted carboxyacyl; or R 1 is a substituent of the formula where R a and R b are the same or different and are each either hydrogen or loweralkyl, and i is an integer of from 0 to 3; R 2 and R 3 are each hydrogen or together form an oxo radical; R 4 is H or C1–C8 alkyl; R 5 and R 6 are each either hydrogen or loweralkyl; or a pharmaceutically acceptable salt thereof.