Antibacterial Optimization of 4-Aminothiazolyl Analogues of the Natural Product GE2270 A: Identification of the Cycloalkylcarboxylic Acids
作者:Matthew J. LaMarche、Jennifer A. Leeds、Kerri Amaral、Jason T. Brewer、Simon M. Bushell、Janetta M. Dewhurst、JoAnne Dzink-Fox、Eric Gangl、Julie Goldovitz、Akash Jain、Steve Mullin、Georg Neckermann、Colin Osborne、Deborah Palestrant、Michael A. Patane、Elin M. Rann、Meena Sachdeva、Jian Shao、Stacey Tiamfook、Lewis Whitehead、Donghui Yu
DOI:10.1021/jm200938f
日期:2011.12.8
4-Aminothiazolyl analogues of the antibiotic natural product GE2270 A (1) were designed, synthesized, and optimized for their activity against Gram positive bacterial infections. Optimization efforts focused on improving the physicochemical properties (e.g., aqueous solubility and chemical stability) of the 4-aminothiazolyl natural product template while improving the in vitro and in vivo antibacterial
existence of a free hydroxylgroup is crucial for NIR absorption of BPcs. Synthesized water‐soluble hydroxy BPcs exhibited high photostability and no fluorescence, which are desirable features for photoacoustic imaging. We synthesized BPcs in which the free hydroxylgroup was masked by an esterase‐labile or an H2O2‐labile group. The photoacoustic signals of these hydroxy‐masked BPcs were increased
由于近红外能够深入组织,因此近红外(NIR)成像技术已在生物学和医学领域引起了广泛关注。但是,很少有稳定,可激活的分子探针可以利用波长范围超过800 nm的NIR光。在此,我们报告了一种基于互变异构苯并酞菁(BPcs)的用于光声成像的新的可激活NIR系统。我们发现,游离羟基的存在对于BPcs的近红外吸收至关重要。合成的水溶性羟基BPcs具有很高的光稳定性,并且没有荧光,这是光声成像的理想功能。我们合成了BPcs,其中的游离羟基被酯酶不稳定或H 2 O 2掩盖不稳定组。当存在酯酶或H 2 O 2时,在880 nm处进行近红外激发时,这些被羟基掩盖的BPcs的光声信号分别增加。这些是利用900 nm左右的NIR光激活的探针的罕见示例。
Water-soluble triazole fungicide
申请人:SANKYO COMPANY, LIMITED
公开号:US20040198790A1
公开(公告)日:2004-10-07
A triazole compound of the formula (I) or a pharmacologically salt thereof:
1
wherein X represents a group of formula X—OH which has antifungal activity, L represents an -(adjacently substituted C
6
-C
10
aryl)-CH
2
group and R represents a —P(═O)(OH)
2
group.
3, 4-dihydro-2(IH)-quinolinone and 2(1H)-quinolinone derivatives
申请人:Tung Roger
公开号:US20080103154A1
公开(公告)日:2008-05-01
The present invention relates to novel 3,4-dihydro-2(1H)-quinolinone and 2(1H)-quinolinone derivatives, their acceptable acid addition salts, solvates, hydrates and polymorphs thereof. The invention also provides compositions comprising a compound of this invention and the use of such compositions in methods of treating diseases and conditions beneficially treated by atypical antipsychotic agents. The invention further provides methods for using a compound of this invention to determine concentrations of a corresponding 3,4-dihydro-2(1H)-quinolinone or 2(1H)-quinolinone compound, particularly in biological fluids, and to determine metabolism patterns of that 3,4-dihydro-2(1H)-quinolinone or 2(1H)-quinolinone compound.