Optimization of the central linker of dicationic bis-benzimidazole anti-MRSA and anti-VRE agents
摘要:
A series of bis-benzimidazole diamidine compounds containing different central linkers has been synthesized and evaluated for in vitro antibacterial activities, including drug-resistant bacterial strains. Seven compounds have shown potent antibacterial activities. The anti-MRSA and anti-VRE activities of compound 1h were more potent than that of the lead compound 1a and vancomycin. (C) 2009 Elsevier Ltd. All rights reserved.
Highly Blue Luminescent Triazine−Amine Conjugated Oligomers
作者:Takashi Murase、Makoto Fujita
DOI:10.1021/jo051268h
日期:2005.11.1
novel synthetic strategy and optical properties of highly fluorescent, triazine−amine conjugated oligomers are described herein. Under basic conditions, aromatic dinitrile compounds, NC−C6H4−X−C6H4−CN (X = NMe, O, CH2), underwent cyclic trimerization of the cyano groups at both ends to give a series of triazine-containing oligomers. The oligomers can be expressed as (2n + 1) mer, where n represents the
本文描述了高荧光三嗪-胺共轭低聚物的新颖合成策略和光学性质。在碱性条件下,芳族二腈化合物NC-C 6 H 4 -X-C 6 H 4 -CN(X = NMe,O,CH 2)的两端均进行氰基的循环三聚,得到一系列的三嗪含低聚物。低聚物可以表示为(2 n +1)mer,其中n表示低聚物中三嗪环的数目。与其他三聚体(X = CH 2)相比,胺共轭三聚体(X = NMe,n = 1)的最大吸收峰显着红移。,O)。在酸性介质中,胺共轭三聚体表现出由质子化引起的两步红移。胺共轭的(2 n +1)单体(X = NMe,n = 1-4)的最大吸收量不依赖于n ; 相反,肩峰出现在长波长区域时Ñ ≥2通过亚苯基涉及三嗪和NME基团的缀合交替低聚物在氯仿中显示出强荧光。特别地,所述五聚体是最有效的蓝色发光体(Φ ˚F = 0.82)。其他含三嗪的低聚物(X = CH 2,O)根本不显示荧光。因此,可以得出结论,
Bisoxadiazolidine derivative
申请人:Yamanouchi Pharmaceutical Co., Ltd.
公开号:US05643931A1
公开(公告)日:1997-07-01
A bisoxadiazolidine dione derivative represented by the following general formula (I) or a pharmaceutically acceptable salt thereof, which is useful as an insulin sensitivity-increasing drug, and a pharmaceutical composition thereof. ##STR1## each represents a phenylene group L: (1) an oxygen, (2) a ##STR2## (3) a --S(O).sub.n --, (4) a --CO--, (5) a ##STR3## (6) an alkylene group or an alkenylene group which may respectively be interrupted with an oxygen atom and/or a sulfur atom.
A bisoxadiazolidinedione derivative of general formula (I) useful as an insulin-sensitivity improver, a pharmaceutically acceptable salt thereof, and a medicinal composition thereof, wherein (a) and (b) may be the same or different from each other and each represent an optionally substituted phenylene group, and L represents: (1) an oxygen atom, (2) a group of formula (II) (R¹ being a hydrogen atom or a lower alkyl group), (3) a group of the formula: -S(O)n- (n being 0, 1 or 2), (4) a group of the formula: -CO-, (5) a group of formula (III) or (IV) (R² being a hydrogen atom or a lower alkyl group), or (6) an alkylene or alkenylene group which may be substituted and interrupted by an oxygen atom and/or a sulfur atom, and the like.
ORGANOMETALLIC COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE INCLUDING THE SAME
申请人:SAMSUNG DISPLAY CO., LTD.
公开号:US20160359126A1
公开(公告)日:2016-12-08
An organometallic compound represented by ML
1
L
2
and an organic light-emitting device including the same, wherein M may be selected from copper (Cu), cobalt (Co), and nickel (Ni), L
1
may be selected from ligands represented by Formula 2, and L
2
may be a monovalent organic ligand:
When the organometallic compound represented by ML
1
L
2
is used as a dopant in the emission layer of an organic light-emitting device, the organic light-emitting device may have low driving voltage and high quantum efficiency.