申请人:The Board of Trustees of the University of Illinois
公开号:US20150314006A1
公开(公告)日:2015-11-05
Methods for efficient preparation of drug-polymer (or oligomer) conjugates useful in the preparation of particles, including microparticles and nanoparticles, for delivery of the drug in vivo for therapeutic applications are provided. The invention also provides nanoparticles prepared by nanoprecipitation using drug-polymer/oligomer conjugates of the invention. The drug conjugates are formed during polymerization of the polymer or oligomer in which the drug is employed as an initiator of the polymerization of the monomers which form the polymer and/or oligomer. More specifically, the drug conjugates are formed by ring-opening polymerization of cyclic monomers in the presence of an appropriate ring-opening polymerization catalyst and the initiator (the drug). The method is particularly useful for formation of polymer/oligomer conjugates with drugs and other chemical species containing one or more hydroxyl groups or thiol groups.
提供了用于高效制备药物-聚合物(或低聚物)共轭物的方法,该方法可用于制备微粒和纳米粒子,以便在体内传递药物进行治疗应用。本发明还提供了使用本发明的药物-聚合物/低聚物共轭物制备的纳米粒子。药物共轭物是在聚合物或低聚物的聚合过程中形成的,其中药物被用作引发单体聚合的引发剂,这些单体形成聚合物和/或低聚物。更具体地说,药物共轭物是通过在适当的开环聚合催化剂和引发剂(药物)存在下的环开口聚合反应中形成的。该方法特别适用于形成聚合物/低聚物共轭物与含有一个或多个羟基或硫醇基团的药物和其他化学物质。