On the Preparation of Carbohydrate−Protein Conjugates Using the Traceless Staudinger Ligation
作者:Cyrille Grandjean、Alain Boutonnier、Catherine Guerreiro、Jean-Michel Fournier、Laurence A. Mulard
DOI:10.1021/jo0505472
日期:2005.9.1
The nature of a linker used for preparing glycoconjugate vaccines is of utmost importance as it may lead to immunogenic biomolecules. We report the conjugation of carbohydrate haptens to protein carriers leading to potential vaccines using the traceless Staudinger ligation. The ligation relies on the selective transfer of a phosphane substituent to an azide to form a native amide bond in the final product upon release of an oxidized phosphane byproduct. We designed new phosphino-functionalized cross-linkers suitable for protein carrier derivatization. We evaluated their utility in preparing conjugates using both synthetic and purified bacterial carbohydrates. The use of a borane-protected phosphane which is deprotected at the time of the ligation reaction led to the best results observed thus far in terms of stability toward oxidation and reactivity.
[EN] HIGH MOLECULAR WEIGHT ZWITTERION-CONTAINING POLYMERS<br/>[FR] POLYMÈRES DE HAUT POIDS MOLÉCULAIRE CONTENANT DES ZWITTERIONS
申请人:OLIGASIS
公开号:WO2011130694A2
公开(公告)日:2011-10-20
The present invention provides multi-armed high MW polymers containing hydrophilic groups and one or more functional agents, and methods of preparing such polymers.