Dodecanoic acid derivatives: Synthesis, antimicrobial evaluation and development of one-target and multi-target QSAR models
摘要:
In this study a series of dodecanoic acid derivatives (1-30) were synthesized and evaluated for in vitro antimicrobial activity against the panel of Gram positive, Gram negative bacterial and fungal strains. 4-Nitro phenyl dodecanoate (4) and quinolin-8-yl dodecanoate (5) emerged as most effective antibacterial agents, and 1-(4-benzylpiperazin-1-yl) dodecan-1-one (15) was found to be the most effective antifungal agent amongst the synthesized dodecanoic acid derivatives. Quantitative structure activity relationship (QSAR) studies performed by the development of one-target and multi-target models indicated that multi-target model was effective in describing the antimicrobial activity of dodecanoic acid derivatives as well demonstrated the importance of topological parameter, zero-order molecular connectivity index ((0)chi).
efficient method for the solvolysis of stericallyhindered esters under high pressure is described. Transesterification is carried out in the presence of DBU at room temperature and at a pressure of 10 kbar to give quantitative conversions within short reaction times. The substrates examined included aromatic and aliphatic esters of stericallyhindered alcohols and phenols. An optically pure benzyl ester
[EN] AMINOPYRIMIDINE DERIVATIVES AND THEIR MEDICAL USE<br/>[FR] DERIVES DE 2-AMINOPYRIMIDINE ET LEUR APPLICATION EN MEDECINE
申请人:NOVARTIS AG
公开号:WO2004089913A1
公开(公告)日:2004-10-21
A compound of formula I or a pharmaceutically acceptable salt, ester or prodrug thereof wherein the variables haue the meanings as defined in the specification. Further disclosed are a method of inhibiting IKK activity using a compound of formula I, a method of inhibiting production of TNF using a compound of formula I, a compound of formula I for use as a pharmaceutical, a pharmaceutical composition comprising a compound of formula I, and use of a compound of formula I in the manufacture of a medicament for use as an immunosuppressant or anti-inflammatory agent.
Process for preparation of an ester using a polyaniline salt as catalyst
申请人:Council of Scientific & Industrial Research
公开号:US06350896B1
公开(公告)日:2002-02-26
The invention relates to a process for preparation of an ester using a polyaniline salt as catalyst.
这项发明涉及使用聚苯胺盐作为催化剂制备酯的过程。
An Enantioselective, Intermolecular α-Arylation of Ester Enolates To Form Tertiary Stereocenters
作者:Zhiyan Huang、Zheng Liu、Jianrong (Steve) Zhou
DOI:10.1021/ja2066829
日期:2011.10.12
asymmetric α-arylation of carbonylcompounds, formation of tertiary centers with high enantioselectivity is a longstanding problem, due to easy enolization of the monoarylation products. Herein, we report such examples using a palladium catalyst supported by a new, (R)-H(8)-BINOL-derived monophosphine. Silyl ketene acetals, together with a weakly basic activator, were used as equivalents of ester anions
在过渡金属催化的羰基化合物的不对称α-芳基化中,由于单芳基化产物容易烯醇化,形成具有高对映选择性的三级中心是一个长期存在的问题。在此,我们报告了使用由新的 (R)-H(8)-BINOL 衍生的单膦支持的钯催化剂的示例。甲硅烷基乙烯酮缩醛与弱碱性活化剂一起用作酯阴离子的等价物,它们与芳基三氟甲磺酸酯以优异的对映体过量 (ee) 顺利反应。该反应的有效性在 92% ee 的 (S)-萘普生的克级合成中得到证明。
A novel poly(p-styrenesulfonic acid) grafted carbon nanotube/graphene oxide architecture with enhanced catalytic performance for the synthesis of benzoate esters and fatty acid alkyl esters
issue of low yield in the synthesis of benzoate esters and fattyacid alkyl esters, designing a high catalytic activity composite catalyst is very significant and attractive. In this study, the rational design strategy was used to develop a novel poly(p-styrenesulfonate acid, namely PSSF) grafted multi-walled carbon nanotube composite with graphene oxide nanomaterial (PSSF-mCNTs-GO) using a simple two-step