| 摘要 |
A targeting immunoreagent comprising a metal ion, a residue of a complexing agent and an immunoreactive group linked to said complNxing agent having structure (I), wherein each R and R1 is independently selected from hydrogen, alkyl, alkoxy, hydroxyalkyl, alkoxyalkyl, hydroxyalkyloxy, alkoxyalkyloxy, alkylthio, alkylthioalkyl, alkylthioalkyloxy, hydroxyalkylthio, hydroxyalkylthioalkyl, hydroxyalkylthioalkyloxy, N,N--dialkylamino, N-(hydroxyalkyl)-N-alkylamino, N,N--bis(hydroyalkyl)amino, N,N-dialkylaminoalkyl, N--(hydroxyalkyl)-N-alkylaminoalkyl, N-N-bis(hydroxyalkyloaminoalkyl), alkylformamido, formamidoalkyl, aryl, alkylaryl, alkoxyaryl, hydroxyalkylaryl, alkoxyalkylaryl, hydroxyalkyloxyaryl, alkoxyalkyloxyaryl, alkylthioaryl, hydroxyalkylthioaryl, hydroxyalkylthioalkylaryl, hydroxyalkylthioalkyloxyaryl, aralkyl, aralkyloxy, alkoxyaralkyl, alkoxyaralkyloxy, aryloxy, alkylarylaxy, alkoxyaryloxy, and heterocyclyl; each Q is independently selected from hydrogen, alkyl, hydroxyl, carboxyl, carboxyalkyl, hydroxyalkyl, alkylthioalkyl, sulfhydryl, thioalkyl, alkoxy, alkylthio, alkylamino, aminoalkyl, aminoalkylaminoalkyl, hydroxy-alkylaminoalkyl, hydroxylaminoalkyl, hydroxamido, formamidoalkyl, alkylformamido, aryl, including substituted aryl, aryloxy, heterocyclyl, carbonyliminodiacetic acid, methyle eiminodiacetic acid, methylenethioethylene-iminodiacetic acid, carboxyalkylthioalkyl, a residue of ethylenediaminetetraascetic acid (EDTA), a residue of diethylenetriaminepentaacetic acid (DTPA), hydrazinylidenediacetic acid, and a salt of any of the foregoing acids; each Z is independently selected from a heteroatom with a valence of two, a heteroatom with a valence of three, an alkylene group, an alkylene group bonded to a heteroatom having a valence of two, and an alkylene group bonded to a heteroatom having a valence of three; each X is independently selected from nitrogen and a residue of an alkylene group; each W is independently selected from hydrogen and a substituent that comprises a protein reactive group; each L' is independently selected from a chemical bond and an intra-ring linking group; each L is independently selected from a residue of an alkylene group and an extra-ring linking group; n is 1, 2, 3 or 4; and each p is independently 0, 1, 2, 3 or 4; provided that only one W is a protein reactive group; the L bonded to the W that is a protein reactive group contains 1, 2, or 3 carbon atoms and connects X to a heteroatom capable of participating in the chelation of a metal ion; and when X is a nitrogen and a heteroatom of Z is bonded to X, the heteroatom of Z is also nitrogen; and the immunoreactive group is an ST receptor binding moiety.
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