Patent ID: 8222359

Claim:
A polymer comprising a plurality of subunits represented by formula IV: or a tautomer, enantiomer or stereoisomer thereof; wherein, independently for each occurrence, E is hydrogen or alkyl; R is alkyl, haloalkyl, cycloalkyl, (cycloalkyl)alkyl, heterocyclyl, (heterocyclyl)alkyl, aryl, aralkyl, heteroaryl, heteroaralkyl, alkoxy, alkyloxycarbonylalkyl, carboxyalkyl, aminocarbonylalkyl, aminoalkyl, aminoalkylaminoalkyl, a polymer, polystyrene, polyethylene glycol, poly(methyl methyacrylate), a fluorescent dye or a radioactive dye; d is about 10 to about 300; W is hydroxy, a protected hydroxy, alkoxy, aryloxy, heteroaryloxy, aralkoxy, heteroaralkoxy, amino or a protected amino; r is 1-10; R 11 is alkyl, aminoalkyl or alkoxycarbonylaminoalkyl; R 12 is alkyl, aminoalkyl or alkoxycarbonylaminoalkyl; m is 1-20 inclusive; p is 0 or 1; Y is O, N(H), N(alkyl), C(H) 2 , C(H)(alkyl) or C(alkyl) 2 ; and n is 1-10 inclusive.