Patent ID: 6656450
Filing Date: 2003-12-02
Classification: A61K,C07D

Abstract:
A chelating agent comprising a compound having the formula: whereinAâ€”B is a structure selected from the group consisting of â€”CR2â€”CR2â€”, â€”CR&boxH;CRâ€”, â€”CR2â€”CR2â€”CR2â€”, CR&boxH;CRâ€”CR2â€” and â€”CR2â€”CR&boxH;CR, and wherein at least one Aâ€”B structure is â€”CR&boxH;CRâ€”; X1 and X2 are independently selected from the group consisting of CR2COOH, and CR(CR2COOH)2; each R is independently selected from the group consisting of hydrogen, alkyl, aryl, alcohol, amine, amido, nitro, ether, ester, ketone, imino, aldehyde, alkoxy, carbonyl, halogen, sulfur containing moiety, phosphorus containing moiety, targeting moiety, or, together with an adjacent R group forms an alkyl or aryl group; or a salt thereof.