Design and synthesis of low molecular weight compounds with complement inhibition activity
作者:Hoshang E. Master、Shabana I. Khan、Krishna A. Poojari
DOI:10.1016/j.bmc.2005.04.075
日期:2005.8
An attempt was made to synthesize a series of non-cytotoxic low molecular weight compounds of varying substitutions and functionalities having pharmacophore activity like carbonyl compounds, carboxylicacid and bioisosteres like tetrazole and phenyl acrylic acid. The in vitro assay of these analogues for the inhibition of complement activity revealed significant inhibitory activity for varying substituents
Coupling of <i>N</i>-tosylhydrazones with tetrazoles: synthesis of 2-β-<scp>d</scp>-glycopyranosylmethyl-5-substituted-2<i>H</i>-tetrazole type glycomimetics
作者:Tímea Kaszás、Ivett Cservenyák、Éva Juhász-Tóth、Andrea E. Kulcsár、Paola Granatino、Ulf J. Nilsson、László Somsák、Marietta Tóth
DOI:10.1039/d0ob02248a
日期:——
The first tosylhydrazone-tetrazole coupling provides a straightforward access to a new type of glycomimetics with exclusive regioselectivity.
第一次甲磺酰肼-四唑偶联反应为一种具有独特区域选择性的新型糖类模拟物提供了一种直接途径。
Novel ligands for the hisb10 zn2+ sites of the r-state insulin hexamer
申请人:——
公开号:US20030229120A1
公开(公告)日:2003-12-11
Novel ligands for the HisB10 Zn
2+
sites of the R-state insulin hexamer that are capable of prolonging the action of insulin preparations are disclosed.
揭示了能够延长胰岛素制剂作用的R-态胰岛素六聚体的HisB10 Zn2+位点的新配体。
Silica supported lanthanum triflate mediated synthesis of 5-substituted-1H tetrazoles
作者:Gangadhar A. Meshram、Shruti S. Deshpande、Pramod A. Wagh、Vipul A. Vala
DOI:10.1016/j.tetlet.2014.04.101
日期:2014.6
Silica supported lanthanumtriflate (Ln(OTf)3-SiO2) promoted synthesis of 5-substituted 1H-tetrazoles via [3+2] cycloaddition between aromatic/heteroaromatic nitriles and sodium azide is a high product yielding, facile, and straightforward procedure. Non toxicity, recovery, and reusability for three continuous cycles are the noteworthy features of the currently employed heterogeneous catalyst.
Preparation of 5-Substituted 1<i>H</i>-Tetrazoles Catalyzed by Scandium Triflate in Water
作者:Adiel Coca、Evan Turek、Liana Feinn
DOI:10.1080/00397911.2014.957775
日期:2015.1.17
Abstract Several 5-substituted1H-tetrazoles were prepared in water or isopropanol/water mixtures using microwave heating. Good yields were obtained for the [2 + 3] cycloaddition of sodium azide with aryl nitriles, aliphatic nitriles, and vinyl nitriles when catalyzed by scandium triflate. The reactions were typically heated for 1 h at 160 °C in a 3:1 isopropanol/water mixture to obtain the best yields