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1. Compound of formula (I) in which: represents a single bond or a double bond provided that the central ring comprising 16 members (4 nitrogen atom and 12 carbon atoms) is an aromatic ring; each R1 and R2 are identical or different and represent:
a hydrogen atom;a group of formula —CH(R3)R4;a group of formula —[C(R5)=(CR6)]nR4;a group of formula —C(O)R7; ora group of formula SO2R8; R3 represents H, an aliphatic chain, linear or branched, having from 1 to 30 carbon atoms; R4 represents an aliphatic chain, linear or branched, having from 1 to 10 carbon atoms, H, X, OH, OR3, SH, SR3, CH(O), C(O)OH, CX(O), C(O)OR3, C(O)NHR3, C(O)NH2, NHR3, NRR′, an heteroaryl, an aryl, CN, NO2, heterocycle or cycloalkyl, the heteroaryl, aryl, heterocycle or cycloalkyl is optionally substituted by one or more alkyl, linear or branched, having from 1 to 10 members, X, NRR′, OR; R5 and R6, identical or different, represent R3, X, OH, OR3, SH, SR3, CH(O), C(O)OH, CX(O), C(O)OR3, C(O)NHR3, C(O)NH2, NRR′, an heteroaryl, an aryl, CN, NO2, heterocycle or cycloalkyl, the heteroaryl, aryl, heterocycle or cycloalkyl is optionally substituted by one or more alkyl, linear or branched, having from 1 to 10 members, X, NRR′, OR; n is an integer from 1 to 10; R7 represents CHR3R4, heteroaryl or aryl, the heteroaryl or aryl is optionally substituted by one or more alkyl, linear or branched, having from 1 to 10 members, X, NRR′, OR; R8 represents heteroaryl or aryl, the heteroaryl or aryl is optionally substituted by an alkyl, linear or branched, having from 1 to 10 members, X, NRR′, OR; X represents an halogen atom; R, R′, identical or different, represent hydrogen, an aliphatic chain, linear or branched, having from 1 to 30 carbon atoms, or an aryl, the aryl is optionally substituted by one or more alkyl, linear or branched, having from 1 to 10 members, X, OH, NH2; and the corresponding compound in ionic forms and in their chelated forms with metals. |
