Disclosed is a novel anti-enterovirus 71 (EV71) 1,2,5-thiadiazolidine-1,1-dioxide derivative or a pharmaceutically acceptable salt thereof; and specifically, a compound represented by formula (II) or a pharmaceutically acceptable salt thereof.
QUINUCLIDINE COMPOUNDS AS ALPHA-7 NICOTINIC ACETYLCHOLINE RECEPTOR LIGANDS
申请人:Cook, II James H.
公开号:US20090270405A1
公开(公告)日:2009-10-29
The disclosure provides compounds of formula I, including their salts, as well as compositions and methods of using the compounds. The compounds are ligands for the nicotinic α7 receptor and may be useful for the treatment of various disorders of the central nervous system, especially affective and neurodegenerative disorders.
Compounds having the following formula I:
or a stereoisomer or pharmaceutically-acceptable salt thereof, where R
1
, R
2
, R
3
, R
4
, and R
5
are as defined herein, are useful in the modulation of IL-12, IL-23 and/or IFNα, by acting on Tyk-2 to cause signal transduction inhibition.
N-Aryl benzamides wherein the aryl group is a nitrogen containing heterocycle are useful as selective herbicidal agents. Compositions containing the novel benzamides and a herbicidal method of selective weed control are disclosed.
Pyridazine‐Based Ligands and Their Coordinating Ability towards First‐Row Transition Metals
作者:Katrin R. Grünwald、Gerald Saischek、Manuel Volpe、Ferdinand Belaj、Nadia C. Mösch‐Zanetti
DOI:10.1002/ejic.201000120
日期:2010.5
Tridentate pyridazine ligands with two different substituents at the 3- and 6-positions (pyridyl hydrazone at the 3-position and tolyl 3tol or tert-butyl 3tBu at the 6-position) were prepared in high yields from 3,6-disubstituted pyridazine hydrazines and pyridine aldehyde by Schiff base condensation. This provides a facile entry into a novel class of heterocyclic molecules exhibiting interesting coordinating
从 3,6-二取代哒嗪肼以高产率制备了在 3-位和 6-位具有两个不同取代基的三齿哒嗪配体(在 3-位为吡啶基腙和在 6-位为甲苯基 3tol 或叔丁基 3tBu)和吡啶醛通过席夫碱缩合。这为进入一类具有有趣配位能力的新型杂环分子提供了便利。它们与第一排过渡金属硝酸盐反应生成 [ML2](NO3)2 (L = 3tol; M = Co 4, M = Ni 5, M = Zn 7) 和 [ML( )2] 类型的配合物(L = 3tol, M = Cu 6; L = 3tBu, M = Ni 8, M = Cu 9, M = Zn 10) 作为结晶固体。除铜化合物 6 外,所有采用配体 3tol 的配合物均形成 ML2 型配合物,而配体 3tBu 仅形成 ML 型配合物,这证明了 6 位取代基的影响,尽管它远离配位点。这表明明显的电子效应。所有配合物的分子结构均通过单晶 X 射线衍射分析确定,在由两个配体