Patent ID: 7132567

Claim:
A compound represented by 1: wherein X represents independently for each occurrence a bond, O, S, or NR′; Z represents independently for each occurrence alkylsulfonyl, fluoroalkylsulfonyl, arylsulfonyl, or S(O) 2 OH; Ar and Ar′ are independently selected from the group consisting of optionally substituted aryl and heteroaryl; T represents a covalent tether connecting Ar and Ar′, wherein said covalent tether comprises an amide, ether, substituted amine or ester moiety; R′ represents independently for each occurrence H, alkyl, alkenyl, aryl, aralkyl, formyl, acyl, sulfonyl, or —(CH 2 ) m —R 80 ; R 80 represents independently for each occurrence aryl, cycloalkyl, cycloalkenyl, or heterocyclyl; and m is an integer in the range 0 to 8 inclusive.