The use and transformation of carbondioxide as a C1source into valuable chemical products using cheap industrial chemicals undermildreactionconditions fulfill the requirements of atom economy in the chemical industry. In this paper, two new silver-cluster-based frameworks were synthesized by incorporating thiourea on the backbone of the tripodal ligands. Given their large pores, high density of
A computationally designed binding mode flip leads to a novel class of potent tri-vector cyclophilin inhibitors
作者:Alessio De Simone、Charis Georgiou、Harris Ioannidis、Arun A. Gupta、Jordi Juárez-Jiménez、Dahlia Doughty-Shenton、Elizabeth A. Blackburn、Martin A. Wear、Jonathan P. Richards、Paul N. Barlow、Neil Carragher、Malcolm D. Walkinshaw、Alison N. Hulme、Julien Michel
DOI:10.1039/c8sc03831g
日期:——
Molecular simulations led to the discovery of a new class of small molecules that inhibit the cyclophilin family of proteins.
分子模拟导致了一类新的小分子的发现,这些小分子可以抑制环肽蛋白家族的蛋白质。
Gram scale production of 1-azido-β-<scp>d</scp>-glucose <i>via</i> enzyme catalysis for the synthesis of 1,2,3-triazole-glucosides
作者:Jaggaiah N. Gorantla、Salila Pengthaisong、Sunaree Choknud、Teadkait Kaewpuang、Tanaporn Manyum、Vinich Promarak、James R. Ketudat Cairns
DOI:10.1039/c9ra00736a
日期:——
The production of analytical amounts of azido sugars is used as a means of verifying catalytic acid/base mutations of retaining glycosidase, but application of this process to preparative synthesis has not been reported. The catalytic acid/base mutant of Thermoanaerobacterium xylanolyticus GH116 β-glucosidase, TxGH116D593A, catalyzed the gram scale production of 1-azido-β-D-glucose (1) from p-nitr
分析量的叠氮基糖的产生被用作验证保留糖苷酶的催化酸/碱突变的一种手段,但该方法在制备合成中的应用尚未见报道。Thermoanaerobacterium xylanolyticus GH116 β-葡萄糖苷酶的催化酸/碱突变体Tx GH116D593A 催化从对硝基苯基-β-D-吡喃葡萄糖苷 ( p NPGlc )和通过转葡萄糖基化反应叠氮化物。酶与p NPGlc 和 NaN 3在水性 MES 缓冲液 (pH 5.5) 中在 55 °C 下过夜反应产生1 (3.27 g),其被分离为白色泡沫状固体,产率为 96%。该1已成功用于通过点击化学合成十五种含有多种官能团的1,2,3-三唑-β- D-葡萄糖基衍生物 ( 2-16 )。
Design, synthesis and activity against drug-resistant bacteria evaluation of C-20, C-23 modified 5-O-mycaminosyltylonolide derivatives
antibiotics with excellent activityagainstdrug-resistantbacteria. Three novel series of tylosin semisynthetic derivatives were designed, synthesized and evaluated for their antibacterialactivitiesagainst various Gram-positive and Gram-negative bacteria. Among these derivatives, compound C-2 demonstrated potent antibacterialactivityagainst both gram-positive and gram negative bacteria, and non mutagenic