Method for Preparing Water-Soluble Polymer Derivatives Bearing a Terminal Carboxylic Acid
申请人:Kozlowski Antoni
公开号:US20090264600A1
公开(公告)日:2009-10-22
A method is provided for preparing water-soluble polymer derivatives bearing a terminal carboxylic acid or ester thereof. The method involves the hydrolyzing an ortho ester of a water-soluble polymer so as provide the corresponding acid. In addition, the invention provides water-soluble polymers bearing a terminal carboxylic acid or ester thereof, intermediates and reagents useful in carrying out the method, as well as gels, pharmaceutical formulations, conjugates related to the described water-soluble polymer derivatives.