Patent ID: 8829233

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