α<sub>2</sub>-Adrenoceptor Antagonists: Synthesis, Pharmacological Evaluation, and Molecular Modeling Investigation of Pyridinoguanidine, Pyridino-2-aminoimidazoline and Their Derivatives
作者:Brendan Kelly、Michela McMullan、Carolina Muguruza、Jorge E. Ortega、J. Javier Meana、Luis F. Callado、Isabel Rozas
DOI:10.1021/jm501635e
日期:2015.1.22
functional activity at the α2-adrenoceptor, a G-protein-coupled receptor with relevance in several neuropsychiatric conditions. In this paper we describe the design, synthesis, and pharmacological evaluation of a new series of pyridine derivatives [para substituted 2- and 3-guanidino and 2- and 3-(2-aminoimidazolino)pyridines, disubstituted 2-guanidinopyridines and N-substituted-2-amino-1,4-dihydroquinazolines]
Synthesis and Pharmacological Evaluation of 3-propyl-2-substitutedamino-3<i>H</i>-quinazolin-4-ones as Analgesic and Anti-Inflammatory Agents
作者:R. V. Sheorey、A. Thangathiruppathy、V. Alagarsamy
DOI:10.1002/jhet.1973
日期:2016.9
novel 3‐propyl‐2‐substitutedamino‐quinazolin‐4(3H)‐ones were synthesized by reacting the amino group of 2‐hydrazino‐3‐propyl quinazolin‐4(3H)‐one with a variety of aldehydes and ketones. The starting material 2‐hydrazino‐3‐propyl quinazolin‐4(3H)‐one was synthesized from propylamine. The title compounds were investigated for analgesic and anti‐inflammatory activities. The compound 2‐(1‐ethylpropyl
多种新的3-丙基-2- substitutedamino -喹唑啉-4(3 H ^) -酮是由2-肼基-3-丙基喹唑啉-4(3氨基反应合成ħ) -酮与各种醛的和酮。起始原料2-肼基-3-丙基喹唑啉-4(3 H)-one由丙胺合成。研究了标题化合物的镇痛和抗炎活性。化合物2-(1-乙基亚丙基-肼基)-3-丙基-喹唑啉-4(3 H)-一(SR2)成为该系列中活性最高的化合物,在镇痛和抗炎方面更有效与参考标准双氯芬酸钠比较时的活性。
Facile access to <i>S</i>-methyl dithiocarbamates with sulfonium or sulfoxonium iodide as a methylation reagent
Efficient access to S-methyl dithiocarbamates was achieved with sulfonium or sulfoxonium iodide as a methylation reagent. This method is reliable for the synthesis of dithiocarbamates from primary or secondary amines, with sulfoxonium iodide demonstrating more robust methylation capability than sulfonium iodide. Moreover, it also enables facile access to S-trideuteromethyl dithiocarbamates via sulfoxonium
使用锍或碘化亚砜作为甲基化试剂,可以有效地获得S-甲基二硫代氨基甲酸盐。该方法对于从伯胺或仲胺合成二硫代氨基甲酸盐来说是可靠的,碘化亚砜表现出比碘化亚砜更强大的甲基化能力。此外,它还能够通过碘化亚砜和DMSO- d 6之间的亚砜复分解以高产率轻松获得S-三氘代甲基二硫代氨基甲酸酯。
Synthesis and SAR of novel conformationally restricted oxazolidinones possessing Gram-positive and fastidious Gram-negative antibacterial activity. Part 2: Amino substitutions on heterocyclic D-ring system
作者:Allison L. Choy、J.V.N. Vara Prasad、Frederick E. Boyer、Michael D. Huband、Michael R. Dermyer
DOI:10.1016/j.bmcl.2007.05.085
日期:2007.8
A novel series of conformationally restricted oxazolidinones was synthesized, in which the heterocyclic D ring was substituted with various amino groups. Several analogs exhibited potent activity against both Gram-positive and fastidious Gram-negative organisms. Certain aniino-substituted analogs also exhibited improved aqueous solubility compared to the corresponding un-substituted heterocyclic D-ring analogs.(c) 2007 Elsevier Ltd. All rights reserved.