Patent ID: 7087229

Claim:
A compound comprising the Formula (I): wherein: R 1 and R 2 are independently selected from the group consisting of substantially non-antigenic polymer residues, H, C 1-6 alkyls, C 2-6 alkenyl, C 2-6 alkynyl, aralkyls, and terminal branching groups; Z is selected from the group consisting of hydrophobics moieties, bifunctional linking moieties, wherein L 3 is a bifunctional linker and Y 4 is O, S or NR 11 , and combinations thereof; Y 1-3 may be the same or different and are selected from among O, S or NR 11 ; L 1 and L 2 may be the same or different bifunctional linkers; R 3 –R 11 , R 24 and R 25 may be the same or different and are selected from the group consisting of hydrogen, C 1-6 alkyls, C 2-6 alkenyl, C 2-6 alkynyl, C 3-19 branched alkyls, C 3-8 cycloalkyls, C 1-6 substituted alkyls, C 2-6 substituted alkenyls, C 2-6 substituted alkynyls, C 3-8 substituted cycloalkyls, aryls, substituted aryls, aralkyls, C 1-6 heteroalkyls, substituted C 1-6 heteroalkyls, C 1-6 alkoxy, phenoxy and C 1-6 heteroalkoxy; L 3 and L 4 may be the same or different and are selected from: —C(O)(CR 30 R 31 )Y 15 (CR 32 R 33 )C(O)— or —C(O)(CR 30 R 31 )(CR 32 R 33 )C(O)— wherein: Y 15 is selected from O, S, NR 34 or CH 2 , and R 30-34 may be the same or different and are selected from H, alkyl, alkenyl, alkynyl, heteroalkyl or aryl; A is selected from the group consisting of bioligically active proteins, leaving groups, functional groups, and OH; a, b, c, d, and e are independently 0 or 1 m, n, o, and p are independently positive integers, f and g are 0 or 1, provided that at least one of (f+a) or (g+c) is equal to 2.