cancer metastasis. Here we report the structure-activity relationship study of novel CXCR4 antagonists based on an aminoquinoline template. This template is devoid of the chiral center in the classical tetrahydroquinoline (THQ) ring moiety and therefore can be easily synthesized. A number of potent CXCR4 antagonists were identified, exemplified by compound 3, which demonstrated excellent binding affinity
Process For Preparing Chlorinated Carbonyl Compounds In Jet Loop Reactors
申请人:Kutschera Dirk
公开号:US20080114196A1
公开(公告)日:2008-05-15
The present invention relates to a process for preparing chlorinated or partly chlorinated carbonyl compounds, which comprises reacting unchlorinated or partly chlorinated carbonyl compounds with a chlorinating agent in a jet loop reactor.
Stereoelectronic Effects Dictate Molecular Conformation and Biological Function of Heterocyclic Amides
作者:Robert C. Reid、Mei-Kwan Yau、Ranee Singh、Junxian Lim、David P. Fairlie
DOI:10.1021/ja506518t
日期:2014.8.27
on molecular conformation due to stereoelectroniceffects exerted by the heteroatom. This was shown for imidazole- and thiazole-amides by comparing low energy conformations (ab initio MP2 and DFT calculations), charge distribution, dipole moments, and known crystal structures which support a general principle. Switching a heteroatom from nitrogen to sulfur altered the amide conformation, producing different
由于杂原子施加的立体电子效应,与酰胺相邻的杂环可以对分子构象产生重要影响。通过比较低能量构象(从头计算 MP2 和 DFT 计算)、电荷分布、偶极矩和支持一般原理的已知晶体结构,咪唑和噻唑酰胺显示了这一点。将杂原子从氮转换为硫改变了酰胺构象,产生了不同的三维静电表面。差异归因于不同的偶极子和轨道排列,并在调节人巨噬细胞上炎症蛋白补体 C3a 的 G 蛋白偶联受体方面显着地转化为相反的激动剂与拮抗剂功能。通过使用稠合双环锁定酰胺构象,证实了杂原子的影响。这些发现表明杂环的立体电子效应调节分子构象,并可以赋予截然不同的生物学特性。
Synthesis and in-vitro Anti-hepatitis B Virus Activity of Ethyl 6-Bromo-8-hydroxyimidazo[1,2-a]pyridine-3-carboxylates
作者:Dong Chen、Yajing Liu、Shulan Zhang、Dexiang Guo、Chunhong Liu、Sai Li、Ping Gong
DOI:10.1002/ardp.201000045
日期:2011.3
A series of ethyl 6‐bromo‐8‐hydroxyimidazo[1,2‐a]pyridine‐3‐carboxylate derivatives were synthesized and evaluated for their anti‐hepatitis Bvirus (HBV) activity and cytotoxicity in HepG2.2.15 cells. Nearly half of the tested compounds were proved to be highly effective in inhibiting the replication of HBV DNA with IC50 values ranging from 1.3 to 9.1 µM. Among them, 10o and 10s were identified as
Herbicidal o-(substituted, aminomethylbenzoic, nicotinic and
申请人:American Cyanamid Company
公开号:US04861887A1
公开(公告)日:1989-08-29
A method for the preparation of o-carboxyl imidazolinone compounds including oxidizing the appropriate 2-[(1-carbamoyl-1,2-dimethylpropyl)amino]methyl}-benzoic acid intermediate with a brominating agent. Compounds useful as intermediates in the oxidation method and methods for preparing them are disclosed.