Provided herein are antibacterial compounds, wherein the compounds in some embodiments have broad spectrum bioactivity. In various embodiments, the compounds act by inhibition of lipoprotein signal peptidase II (LspA), a key protein in bacteria. Pharmaceutical compositions and methods for treatment using the compounds described herein are also provided.
Disclosed are compounds of Formula (I):
or a salt thereof, wherein: Z is CR
6
R
6
or C═O; Ring A is:
and R
1
, R
2
, R
3
, R
4
, R
5
, m, and n are defined herein. Also disclosed are methods of using such compounds to inhibit Helios protein, and pharmaceutical compositions comprising such compounds. These compounds are useful in the treatment of viral infections and proliferative disorders, such as cancer.
The synthesis of 2-ketopiperazine acetic acid esters and amides from ethylenediamines with maleates and maleimides
作者:Matthew M Abelman、Karl J Fisher、Edward M Doerffler、Paul J Edwards
DOI:10.1016/s0040-4039(03)00103-5
日期:2003.2
The reaction of substituted ethylenediamines with various fumarates, maleates, and maleimides to form substituted ketopiperazine aceticacidesters and amides was investigated. This method affords a straightforward, high yield approach to a variety of potential peptidomimetics and can yield surprising results with regard to regio- and stereoselectivity.
An effortless approach to synthesize two structurally diverse nano copper(II) materials and assessment of their apoptosis‐inducing ability on lung cancer cell line
Two architecturally dissimilar coordination complexes, namely, C1 = [CuL1(NO2)]2 and C2 = [CuL2(NO3)] (L1 = (4-bromo-2-[(2-isobutylaminoethylimino)methyl]phenolate and L2 = (4-bromo-2-[(2-propylaminoethylimino)methyl]phenolate) have been synthesized from two different organic ligand backbones. The synthesized complexes have been identified using some common techniques like elemental analysis, FT-IR
两种结构不同的配位配合物,即C1 = [CuL 1 (NO 2 )] 2和C2 = [CuL 2 (NO 3 )] ( L 1 = (4-bromo-2-[(2-isobutylaminoethylimino)methyl]phenolate)和L 2 = (4-bromo-2-[(2-丙基氨基乙基亚氨基)甲基]酚盐) 已由两种不同的有机配体主链合成。合成的配合物已使用元素分析、FT-IR 光谱、和单晶 X 射线分析。X 射线结构分析表明,C1是通过一个桥接亚硝酸根阴离子实现的双核配合物,而对于C2,硝酸根阴离子桥接配合物以实现一维配位聚合物。使用简单的手工研磨技术、研钵和研杵通过快速和绿色机械方法切割C1和C2 ,得到NC1和NC2纳米粒子,其平均尺寸通过 PXRD、SEM 和 DLS 表征。
Crosslinkers for improving stability of polyurethane foams
申请人:Vedage Gamini Ananda
公开号:US20080090922A1
公开(公告)日:2008-04-17
A composition for making a polyurethane foam includes a non-fugitive tertiary amine urethane catalyst and an alkylated polyamine crosslinking additives. Foams prepared from the reaction of a polyol and an organic isocyanate in the presence of these ingredients show improved resistance to deterioration of physical properties upon humid aging.