A cyanoguanidine compound of the following formula:
is disclosed. A cyanoguanidine compound of the present invention possess a high specificity for tumor cells. Also disclosed are methods for preparing a cyanoguanidine compound.
Observations on Protecting Groups in the Synthesis of Mono- and Triphosphates of Amino Alcohols
作者:Yuliya V. Sherstyuk、Polina V. Chalova、Vladimir N. Silnikov、Tatyana V. Abramova
DOI:10.1080/00304948.2019.1586427
日期:2019.3.4
work, AMP and monophosphorylated amino alcohols protected at the amino group were coupled to give disubstituted pyrophosphates. Unlike pyrophosphate linkage formation, there are different strategies to obtain the linear polyphosphates by coupling two phosphorylated blocks. Among them, coupling that involves monoand triphosphate derivatives is more attractive due to the relative availability of parent
天然和修饰的多磷酸核苷是现代生物学研究中不可或缺的工具。它们的应用包括但不限于聚合酶链反应 (PCR)、单核苷酸多态性 (SNP) 检测、DNA/RNA 标记、非特异性诱变和 DNA 测序,包括单分子实时测序。众所周知,末端磷酸标记的核苷 5 多磷酸(n1⁄4 2-4,图 1)比 c 标记的核苷 5-三磷酸是更好的 RNA 和 DNA 聚合酶底物。获得衍生物的方法之一,如图 1 所示,其中 X 不能直接磷酸化,包括通过稳定的磷酸酯键连接到末端磷酸酯的中间氨基烷基接头的插入和两个磷酸化嵌段的偶联以形成双取代的多磷酸酯链。这可以提供多种与基于市售含羧基染料的荧光标记缀合的衍生物。最近,我们将此策略应用于合成许多新型 ADP 偶联物,即聚(ADP核糖基)聚合酶 1 的潜在抑制剂。在这项工作中,AMP 和氨基保护的单磷酸化氨基醇偶联得到二取代的焦磷酸盐。与焦磷酸键的形成不同,通过偶联两个磷酸化嵌段
Fucose galactose carbohydrates have been shown to induce neuronal outgrowth. The invention includes methods of inducing neuronal outgrowth using carbohydrates, assemblies, and polymers bearing fucose-galactose moieties, as well as associated proteins. Cell growth can be stimulated in cells in culture or in cells within an animal or patient. Growth stimulation has application to understanding and treatment of neurodegenerative diseases including, for example, Parkinson's disease, Alzheimer's disease and multiple sclerosis and conditions such as stroke, brain injury and spinal cord injury. Such compounds, polymers, and assemblies also can be used to increase neural stem or progenitor cells in culture or in an animal, and to enervate engineered tissue.
INHIBITORS OF UDP-GALACTOPYRANOSE MUTASE THWART MYCOBACTERIAL GROWTH
申请人:Kiessling Laura Lee
公开号:US20100056586A1
公开(公告)日:2010-03-04
Compounds which inhibit microbial growth or attenuate the virulence of pathogen microorganisms. Compounds of the invention inhibit UDP-galactopyranose mutase (UGM) and have activity as inhibitors of microbial growth of microorganisms which contain this enzyme and particularly those microorganisms in which this enzyme is responsible for the incorporation of galactofuranose residues, particularly for uridine 5′-diphosphate (UDP) galactopyranose mutase. Compounds of the invention inhibit UDP-galactopyranose mutase (UGM) and have activity to attenuate virulence of pathogenic microorganisms, including mycobacteria.