Patent ID: 8785641

Claim:
A compound according to formula (I) wherein n is an integer between 0 and 10, Y is a bond, —CH 2 —, —CH═CH—, —C≡C—, —O—, —S—, —S—S—, —NH—, —O—NH—, —NH—O—, —HC═N—O—, —O—N═CH—, —NR 1 —, -aryl-, -heteroaryl-, —(C═O)—, —O—(C═O)—, —(C═O)—O—, —NH—(C═O)—, —(C═O)—NH—, —NR 1 —(C═O)—, —(C═O)—NR 1 —, —NH—(C═O)—NH—, or —NH—(C═S)—NH—, R 1 is a linear alkyl group with 1 to 10 C atoms or for a branched or cyclic alkyl group with 3 to 10 C atoms, Z is selected from m is an integer between 0 and 10, R 2 is —H, —OH or —COOH, R 3 is —H or —OH, A is a bond or —(C═O)—, R4 is —H or X is —(CH 2 ) p —R 5 ; a branched alkyl, alkenyl or alkynyl group with 3 to 10 C atoms; a cyclic alkyl, alkenyl or alkynyl group with 3 to 10 C atoms; or an aryl or heteroaryl group, p is an integer between 0 and 10 R 5 is —H, —NH 2 , —NO 2 , —OH, —SH, —O—NH 2 , —NH—NH 2 , —N═C═S, —NC═O, —CH═CH 2 , —C≡CH, —COOH, —(C═O)H, or —(C═O)R 6 , wherein the hydroxy, thio, amino or C═O groups are optionally suitable to be protected by a protective group, —N 3 , —OR 6 , —COOR 6 , —NHR 6 , —NR 6 R 7 , —CO—NHR 6 , —CONR 6 R 7 , —NH—CO—R 6 , or 4-(2,5-dioxopyrrol-1-yl), and R 6 and R 7 each, independently, is a linear alkyl group with 1 to 10 C atoms, a linear alkenyl or alkynyl group with 2 to 10 C atoms, or a branched alkyl, alkenyl or alkynyl group with 3 to 10 C atoms, wherein, if X is a branched alkyl, alkenyl or alkynyl group, a cyclic alkyl or alkenyl group, an aryl or heteroaryl group, then one C atom of this group X is optionally substituted with R 5 .