Herein, the preparation of neoglycoconjugates bearing mannose-6-phosphate analogues is described by: (a) synthesis of a cyclic sulfate precursor to access the carbohydrate head-group by nucleophilic displacement with an appropriate nucleophile; (b) introduction of spacers on the mannose-6-phosphate analogues via Huisgen’s cycloaddition, the Julia reaction, or the thiol-ene reaction under ultrasound
在本文中,带有 6-磷酸甘露糖类似物的新糖缀合物的制备通过以下方式进行描述:(a)通过用适当的亲核试剂亲核置换来合成环状硫酸盐前体以接近碳水化合物头基;( b )通过Huisgen的环加成反应、Julia反应或超声活化下的硫醇-烯反应在6-磷酸甘露糖类似物上引入间隔基。有了所得到的化合物,金纳米粒子可以用各种碳水化合物衍生物(糖缀合物)进行功能化,然后测试血管生成活性。据观察,将糖类似物与纳米颗粒分开的间隔物的长度和柔韧性对生物反应几乎没有影响。
A ‘Turn-on’ Fluorescence Glycosyl Dithiocarbamate Probe for Selective Fluoride Sensing in Aqueous Medium
glycosyl dithiocarbamate derivative is developed as a ‘turn on’ fluorescent sensor for fluorides in aqueous medium. The probe is prepared through a simple chemical strategy reported earlier from our group. The virtually nonfluorescent probe showed significant enhancement of fluorescence upon interaction with fluorides in aqueous solution. It was seen to be selective to fluorides too as the interactions
Method of using click chemistry to functionalize dendrimers
申请人:Wu Peng
公开号:US20090306310A1
公开(公告)日:2009-12-10
A library of functionalized dendritic macromolecules was prepared in extremely high yields using no protecting group strategies and with only minimal purification steps through the use of copper(I)-catalyzed 1,3-dipolar cycloaddition of azides and terminal acetylenes.