Polymer-Supported <i>O</i>-Benzyl and <i>O</i>-Allylisoureas: Convenient Preparation and Use in Ester Synthesis from Carboxylic Acids
作者:Stefano Crosignani、Peter D. White、Rene Steinauer、Bruno Linclau
DOI:10.1021/ol0275062
日期:2003.3.1
copper(II)-catalyzed reaction of polymer-supported carbodiimide with the corresponding alcohols. These polymer-supported reagents were successfully employed to convert a series of carboxylic acids to methyl, benzyl, or allyl esters, in good yields. The products were obtained with high purity (>95% by NMR) after a simple resin filtration-solvent evaporation sequence.
[EN] CONTROLLED DRUG RELEASE FROM SOLID SUPPORTS<br/>[FR] SUPPORTS SOLIDES POUR LA LIBÉRATION CONTRÔLÉE DE MÉDICAMENTS
申请人:PROLYNX LLC
公开号:WO2011140392A1
公开(公告)日:2011-11-10
The invention relates to solid supports useful in medical applications that provide controlled release of drugs, such as peptides, nucleic acids and small molecules. The drugs are covalently coupled to the solid support through a linkage that releases the drug or a prodrug through controlled beta elimination.
[EN] CONTROLLED RELEASE FROM MACROMOLECULAR CONJUGATES<br/>[FR] LIBÉRATION CONTRÔLÉE À PARTIR DE CONJUGUÉS MACROMOLÉCULAIRES
申请人:PROLYNX LLC
公开号:WO2011140393A1
公开(公告)日:2011-11-10
The invention relates to conjugates of macromolecular carriers and drugs comprising linkers that release the drug or a prodrug through rate-controlled beta-elimination, and methods of making and using the conjugates.
Solid-Phase Synthesis of Peptidyl Thioacids Employing a 9-Fluorenylmethyl Thioester-Based Linker in Conjunction with Boc Chemistry
作者:David Crich、Kasinath Sana
DOI:10.1021/jo901218g
日期:2009.10.2
A method for the synthesis of peptidyl thioacids is described on the basis of the use of the N-[9-(thiomethyl)-9H-fluoren-2-yl]succinamic acid and cross-linked aminomethyl polystyrene resin. The method employs standard Boc chemistry SPPS techniques in conjunction with 9-fluorenylmethyloxycarbonyl protection of side-chain alcohols and amines and 9-fluorenylmethyl protection of side-chain acids and thiols