Identification and Profiling of Hydantoins—A Novel Class of Potent Antimycobacterial DprE1 Inhibitors
摘要:
Tuberculosis is the leading cause of death worldwide from infectious diseases. With the development of drug-resistant strains of Mycobacterium tuberculosis, there is an acute need for new medicines with novel modes of action. Herein, we report the discovery and profiling of a novel hydantoin-based family of antimycobacterial inhibitors of the decaprenylphospho-beta-D-ribofuranose 2-oxidase (DprE1). In this study, we have prepared a library of more than a 100 compounds and evaluated them for their biological and physicochemical properties. The series is characterized by high enzymatic and whole-cell activity, low cytotoxicity, and a good overall physicochemical profile. In addition, we show that the series acts via reversible inhibition of the DprE1 enzyme. Overall, the novel compound family forms an attractive base for progression to further stages of optimization and may provide a promising drug candidate in the future.
Synthesis of Oxazolidinones and Derivatives through Three-Component Fixation of Carbon Dioxide
作者:Congmin Mei、Yibo Zhao、Qianwei Chen、Changsheng Cao、Guangsheng Pang、Yanhui Shi
DOI:10.1002/cctc.201800142
日期:2018.7.19
three‐component fixation of atmospheric CO2 with readily available 1,2‐dichloroethane and aromatic amine toward oxazolidinones catalyzed by in situ NHC was developed. The reaction occurred in good to excellent yields with good generality and wide functional group tolerance, including challenging steric hindered substituted‐dichloroethane (e.g. 1,2‐dichloropropane and 2,3‐dichlorobutane). The catalytic system
A straightforward one-pot synthesis of bioactive N-aryl oxazolidin-2-ones via a highly efficient Fe<sub>3</sub>O<sub>4</sub>@SiO<sub>2</sub>-supported acetate-based butylimidazolium ionic liquid nanocatalyst under metal- and solvent-free conditions
A supported ionic liquid-based magnetic nanocatalyst has been fabricated for the formation of pharmaceutically important N-aryl oxazolidin-2-ones.
已制备一种支持的离子液体基磁性纳米催化剂,用于合成具有药用重要性的N-芳基噁唑烷-2-酮。
Novel carbapenem compound
申请人:Sunagawa Makoto
公开号:US20090029964A1
公开(公告)日:2009-01-29
An orally administrable antibacterial agent which contains as an active ingredient a carbapenem compound represented by the formula [1] below,
wherein R
0
represents hydrogen atom or the like; R
1
represents C
1
-C
3
alkyl substituted by hydroxyl group or the like; R represents hydrogen atom or a group which regenerates a carboxyl group by hydrolysis in a living body; L represents a single bond, methylene, —OCH
2
(CO)— or the like; and Het represents a group represented by the following formula [2],
wherein m and n independently represent 0 or 1; A and B independently represent methylene, carbonyl or the like; Y represents methylene, ethylene, oxygen atom, —OCH
2
—, —NR
a
CH
2
— (wherein R
a
represents hydrogen atom, optionally substituted C
1
-C
4
alkyl group or the like) or the like.
THERAPEUTIC AGENT FOR CHRONIC OBSTRUCTIVE PULMONARY DISEASE
申请人:Sugasawa Toshinari
公开号:US20110263550A1
公开(公告)日:2011-10-27
Disclosed is a method for the prevention and/or treatment of a chronic obstructive pulmonary disease by administrating a 5-membered cyclic compound represented by the formula below:
or a pharmaceutically acceptable salt of the compound or a prodrug of the compound or salt: wherein X represents an oxygen or sulfur atom; R
1
represents a hydrogen atom, a substituted or unsubstituted alkyl or the like; R
2
represents a hydrogen atom, a substituted or unsubstituted alkyl or the like; Y
1
represents single bond, a substituted or unsubstituted alkylene or the like; the wavy line means an (E) or (Z) coordination; R
3
represents a hydrogen atom, a substituted or unsubstituted aryl or the like; Y
2
represents a substituted or unsubstituted alkylene or an alkenylene; R
4
represents a hydrogen atom, a substituted or unsubstituted alkanoyl or the like; and R
5
represents a hydrogen atom or a substituted or unsubstituted alkyl.
Therapeutic agent for chronic obstructive pulmonary disease
申请人:Sugasawa Toshinari
公开号:US20090131439A1
公开(公告)日:2009-05-21
Disclosed is a method for the prevention and/or treatment of a chronic obstructive pulmonary disease by administrating a 5-membered cyclic compound represented by the formula below:
or a pharmaceutically acceptable salt of the compound or a prodrug of the compound or salt: wherein X represents an oxygen or sulfur atom; R
1
represents a hydrogen atom, a substituted or unsubstituted alkyl or the like; R
2
represents a hydrogen atom, a substituted or unsubstituted alkyl or the like; Y
1
represents single bond, a substituted or unsubstituted alkylene or the like; the wavy line means an (E) or (Z) coordination; R
3
represents a hydrogen atom, a substituted or unsubstituted aryl or the like; Y
2
represents a substituted or unsubstituted alkylene or an alkenylene; R
4
represents a hydrogen atom, a substituted or unsubstituted alkanoyl or the like; and R
5
represents a hydrogen atom or a substituted or unsubstituted alkyl.