[EN] METAL-OLSALAZINE COORDINATION POLYMERS FOR MEDICAL APPLICATIONS<br/>[FR] POLYMÈRES DE COORDINATION DE MÉTAL-OLSALAZINE POUR APPLICATIONS MÉDICALES
申请人:UNIV CALIFORNIA
公开号:WO2017214343A1
公开(公告)日:2017-12-14
Olsalazine (H4olz), a prodrug of the anti-inflammatory 5-aminosalicylic acid, is used as a ligand to synthesize a suite of M(H2olz) and M2(olz) materials, where M is a dication (e.g. Mg, Ca, Sr, Fe, Co, Ni, Cu, Zn). A family of metal olsalazine coordination polymers, coordination solids, and metal organic frameworks are described, which include 1-, 2-, and 3-dimensional structures. The materials resist degradation at acidic pH and release olsalazine preferentially at neutral pH. The mesoporous M2(olz) frameworks exhibit high surface areas with hexagonal pore apertures that are approximately 27 Å in diameter and contain coordinatively unsaturated metal sites. Biologically active molecules containing a Lewis-basic functional group can be grafted directly to the open metal sites of the frameworks. Dissolution of the frameworks under physiological conditions releases olsalazine (H4olz) and the grafted molecules so that multiple therapeutic components can be delivered together at different rates.
Olsalazine(H4olz)是一种抗炎5-氨基水杨酸的前药,用作合成一系列M(H2olz)和M2(olz)材料的配体,其中M是双正离子(例如Mg、Ca、Sr、Fe、Co、Ni、Cu、Zn)。描述了一系列金属olsalazine配位聚合物、配位固体和金属有机框架,包括1维、2维和3维结构。这些材料在酸性pH下具有抗降解性,并在中性pH下优先释放olsalazine。介孔M2(olz)框架具有高表面积,具有直径约27 Å的六角形孔口,并包含配位不饱和金属位点。含有Lewis碱性功能基团的生物活性分子可以直接嫁接到框架的开放金属位点上。在生理条件下溶解框架会释放olsalazine(H4olz)和嫁接的分子,从而可以以不同速率同时释放多种治疗成分。