Patent ID: 7794700
Filing Date: 2010-09-14
Classification: A61K,A61P,A61Q

Abstract:
1. A conjugate of the formula I: B is a polyoxyalkylene polymer moiety comprising at least one polymeric unit, the polymer moiety having an average molecular weight of from about 20,000 to 60,000; q is from about 2 to about 20; A at each occurrence is independently a compound of formula II or a pharmaceutically acceptable salt thereof, wherein each polymeric unit is derived only from alkylene oxide monomers selected from the group consisting of ethylene oxide, propylene oxide, isopropylene oxide, butylene oxide, and mixtures thereof, and the polymer moiety contains optional linker groups between polymeric units; J is a group of formula (b): wherein R is hydrogen, R T is a group of formula (c) and provided that: