从机理的角度出发,研究了异羟肟酸释放出具有多种生物学特性的无机小分子硝基氧(HNO)的氧化剂依赖性。实际上,在生理条件下异羟肟酸氧化的确切机理以及中间体的直接或间接表征仍然难以捉摸。在这项工作中,通过1 H NMR,MS,EPR和UV-vis技术监测了在生理pH(7.4)下用K 3 [Fe III(CN)6 ]对异烟酸酯,烟酸酯和吡嗪酮异羟肟酸的分子间氧化反应。。虽然nitrosocarbonyl(二)吖嗪中间体,(二)AZ-C(O)-NO,可以是先验设想,它实际上对应Ñ,识别出的O-二(二)叠氮酰基羟胺(AzC(O)NHOC(O)Az)和HNO,第一个通过1 H NMR,第二个基于EPR和UV-vis实验,使用[2-(4 -羧基苯基)-4,4,5,5-四甲基咪唑啉-1-氧基-3-氧化物](cPTIO)自旋阱。不稳定的N,O-二(二)叠氮酰基羟胺中间体在水性缓冲介质中的分解显示产生相应的羧
Aminocarbonyloxymethyl esters based on (S)-amino acid carriers were synthesised and evaluated as potential prodrugs of carboxylicacid agents. In addition, the compounds were evaluated as topical prodrugs with the aim of improving the dermal delivery of two non-steroidal anti-inflammatory agents: naproxen and flufenamic acid. The lipophilicities of these compounds were determined and their hydrolyses
[EN] PIPERAZINE DERIVATIVES AS MAGL INHIBITORS<br/>[FR] DÉRIVÉS DE PIPÉRAZINE UTILISÉS EN TANT QU'INHIBITEURS DE MAGL
申请人:HOFFMANN LA ROCHE
公开号:WO2019072785A1
公开(公告)日:2019-04-18
The invention provides new heterocyclic compounds having general Formula (I), or a pharmaceutically acceptable salt thereof, wherein R1, R2, X, Y1 and Y2 are as described herein, compositions including the compounds, processes of manufacturing the compounds and methods of using the compounds.
Amidation Reactions from the Direct Coupling of Metal Carboxylate Salts with Amines
作者:Jordan D. Goodreid、Petar A. Duspara、Caroline Bosch、Robert A. Batey
DOI:10.1021/jo402374c
日期:2014.2.7
corresponding carboxylic acids or acyl chlorides are unstable, less conveniently manipulated/isolated, or are not commercially available. For example, the coupling of amines and α-aminoacids with lithium 5-bromo-1H-pyrrole-2-carboxylate, whose corresponding acid that is prone to decarboxylation, allowed for the synthesis of 5-bromo-1H-pyrrole-2-carboxamides, which are analogues of the pyrrole-2-aminoimidazole
The present invention discloses compounds of formula (I):
which exhibit antiviral properties. The present invention further relates to pharmaceutical compositions comprising the aforementioned compounds for administration to a subject in need of anti-HBV treatment. The invention also relates to methods of treating a HBV infection in a subject by administering a pharmaceutical composition comprising the compounds of the present invention.
Synthesis of a series of amino acid derived ionic liquids and tertiary amines: green chemistry metrics including microbial toxicity and preliminary biodegradation data analysis