Recyclable Self-Assembly-Supported Catalytic System for Orthoalkylation
摘要:
A new recyclable supported catalyst system for orthoalkylation was devised using a self-assembly consisting of the barbiturate and 2,4,6-triaminopyrimidine H-bonding motifs. At high temperature, the system is completely homogeneous so as to give an efficient catalytic activity, while it is heterogenized at room temperature to form an insoluble solid phase for the easy recovery of the catalyst after the reaction.
ORGANIC DEUTERIUM COMPOUNDS: XIX. SYNTHESIS OF SOME DEUTERATED LAURIC ACIDS AND THEIR METHYL ESTERS
作者:M. Elaine Isabelle、L. C. Leitch
DOI:10.1139/v58-063
日期:1958.3.1
The synthesis of lauric acids deuterated in the carboxyl, the terminal methyl, and the α-methylene groups and in various combinations of these is described. The methyl and methyl-d3 esters of each of the acids were also prepared.Two further examples of homolytic halide addition to olefins are reported.The reaction between alkyl halides and silver acetylides is described. A mechanism involving a new
Competitive inhibition of interfacial catalysis by phospholipase A2: differential interaction of inhibitors with the vesicle interface as a controlling factor of inhibitor potency
作者:Hung Kuei Lin、Michael H. Gelb
DOI:10.1021/ja00063a012
日期:1993.5
Phospholipidanaloguescontaining a phosphonate in place of the ester at the sn-2 position have been previously shown to be tight-binding competitive inhibitors of secreted phospholipases A 2 . Variants of these compounds in which the structure of the phospholipid polar headgroup has been changed were prepared and analyzed as inhibitors of the phospholipases A 2 from the and cobra venom, porcine and
先前已证明含有膦酸酯代替 sn-2 位置的酯的磷脂类似物是分泌型磷脂酶 A 2 的紧密结合竞争性抑制剂。制备并分析了这些化合物的变体,其中磷脂极性头基的结构已经改变,作为来自眼镜蛇毒液、猪和牛胰腺以及人滑液的磷脂酶 A 2 的抑制剂。在酶进行催化而不从囊泡解吸的条件下,使用带负电荷的底物囊泡进行抑制剂效力的动力学测量(滑移模式)
Novel Xylene-Linked Maltoside Amphiphiles (XMAs) for Membrane Protein Stabilisation
作者:Kyung Ho Cho、Yang Du、Nicola J. Scull、Parameswaran Hariharan、Kamil Gotfryd、Claus J. Loland、Lan Guan、Bernadette Byrne、Brian K. Kobilka、Pil Seok Chae
DOI:10.1002/chem.201501083
日期:2015.7.6
aggregation. In this study, a novel class of maltoside‐bearing amphiphiles, with a xylene linker in the central region, designated xylene‐linked maltosideamphiphiles (XMAs) was developed. When these novel agents were evaluated with a number of membraneproteins, it was found that XMA‐4 and XMA‐5 have particularly favourable efficacy with respect to membraneproteinstabilisation, indicating that these agents
Malonic Ester Amide Synthesis: An Efficient Methodology for Synthesis of Amides
作者:Pankaj S. Mahajan、Jyoti P. Mahajan、Santosh B. Mhaske
DOI:10.1080/00397911.2012.717671
日期:2013.9.17
“malonic ester amide synthesis” has been demonstrated, which uses α-substituted/unsubstituted diethyl malonates for the decarboxylative acylation of various aromatic/heteroaromatic primary/secondary amines to form one-carbon homologated amides, thus providing easy access to amides with odd/even chain lengths and an array of substituents on the alkyl/aryl part while avoiding use of acyl chlorides or peptide
NOVEL XYLENE-BASED AMPHIPHILIC COMPOUND AND USE THEREOF
申请人:Industry-University Cooperation Foundation Hanyang University Erica Campus
公开号:US20180273570A1
公开(公告)日:2018-09-27
The present invention relates to a xylene-based amphiphilic compound, a method for preparing the same, and a method for extracting, solubilizing, stabilizing or crystallizing a membrane protein using the same. By using the xylene-based compound according to the present invention, a membrane protein may be stably stored in an aqueous solution for a long time, and may be applied in functional and structural analyses. The structural and functional analysis of the membrane protein is one of the fields of highest interest in biology and chemistry, and the xylene-based compound according to the present invention can be applied in research on protein structure that is closely related to development of a new drug.