acceptable results. According to this approach an efficient formation of Schiff bases was achieved in the presence of TiCl(4). Substances were isolated by reversed phase chromatography; in some cases isomers were additionally separated by chiral chromatography on Chirobiotic T. When tested on human recombinant melanocortin receptors all the tertiaryamides showed some binding affinities; for the highest affinity
Characterization of Arylalkylamine <i>N</i>-Acyltransferase from <i>Tribolium castaneum</i>: An Investigation into a Potential Next-Generation Insecticide Target
作者:Brian G. O’Flynn、Eric M. Lewandowski、Karin Claire Prins、Gabriela Suarez、Angelica N. McCaskey、Nasha M. Rios-Guzman、Ryan L. Anderson、Britney A. Shepherd、Ioannis Gelis、James W. Leahy、Yu Chen、David J. Merkler
DOI:10.1021/acschembio.9b00973
日期:2020.2.21
short-chain acyl-CoAs (C2-C10), benzoyl-CoA, and succinyl-CoA functioning in the role of acyl donor. Recombinant TcAANAT0 was expressed and purified from E. coli and was used to investigate the kinetic and chemical mechanism of catalysis. The kinetic mechanism is an ordered sequential mechanism with the acyl-CoA binding first. pH-rate profiles and site-directed mutagenesis studies identified aminoacids critical
杀虫剂抗性问题日益严重,这意味着确定新的杀虫剂目标变得前所未有的重要。芳烷基胺 N-酰基转移酶 (AANATs) 已被建议作为潜在的新目标。这些混杂的酶参与生物胺的 N-酰化以形成 N-酰胺。在昆虫中,这个过程是黑色素、角质层硬化、生物胺去除和脂肪酸酰胺生物合成的关键步骤。表征的每个 AANAT 同种型的独特性质表明每个生物体都容纳了该生物体相对专有的离散 AANAT 组装。这意味着在杀虫剂设计中具有很高的选择性,同时也保持了多药性。此处介绍了对 AANAT 的全面动力学和结构分析,该分析在世界上所有植物商品中最常见的次生害虫之一 Tribolium castaneum 中发现。这种名为 TcAANAT0 的酶催化短链 N-酰基芳基烷基胺的形成,其中短链酰基辅酶 A (C2-C10)、苯甲酰辅酶 A 和琥珀酰辅酶 A 在酰基供体的作用下起作用。从大肠杆菌中表达和纯化重组 TcAANAT0,
Antibacterial compounds
申请人:——
公开号:US20030232818A1
公开(公告)日:2003-12-18
Antibacterials having formula (I)
1
and salts, prodrugs, and salts of prodrugs thereof, processes for making the compounds and intermediates used in the processes, compositions containing the compounds, and methods of prophylaxis and treatment of bacterial infections using the compounds are disclosed.
Organocatalytic Decarboxylation of Amino Acids as a Route to Bio‐based Amines and Amides
作者:Laurens Claes、Michiel Janssen、Dirk E. De Vos
DOI:10.1002/cctc.201900800
日期:2019.9.5
Amino acids obtained by fermentation or recovered from protein waste hydrolysates represent an excellent renewable resource for the production of bio‐based chemicals. In an attempt to recycle both carbon and nitrogen, we report here on a chemocatalytic, metal‐free approach for decarboxylation of amino acids, thereby providing a direct access to primary amines. In the presence of a carbonyl compound