Total Syntheses of 2,2‘-epi-Cytoskyrin A, Rugulosin, and the Alleged Structure of Rugulin
摘要:
The total syntheses of 2,2'-epi-cytoskyrin A, rugulosin, and the alleged structure of rugulin are described. These naturally occurring bisanthraquinones and their relatives are characterized by novel molecular architectures at the core, at which lies a more or less complete, cage-like structural motif termed "skyrane". The strategies developed for their total synthesis feature a cascade sequence called the "cytoskyrin cascade" and deliver these molecules in short order and in a stereoselective manner.
Pd(II)-Catalyzed Annulation Reactions of Epoxides with Benzamides to Synthesize Isoquinolones
作者:Huihong Wang、Fei Cao、Weiwei Gao、Xiaodong Wang、Yuhang Yang、Tao Shi、Zhen Wang
DOI:10.1021/acs.orglett.0c04097
日期:2021.2.5
Epoxides as alkylating reagents are unprecedentedly applied in Pd(II)-catalyzed C–H alkylation and oxidative annulation of substituted benzamides to synthesize isoquinolones rather than isochromans, which is accomplished through alerting the previously reported reaction mechanism by the addition of oxidant and TEA. Under these conditions, various isoquinolones have been prepared with yields up to 92%
Design and synthesis of highly potent and selective (2-arylcarbamoyl-phenoxy)-acetic acid inhibitors of aldose reductase for treatment of chronic diabetic complications
作者:Michael C. Van Zandt、Evelyn O. Sibley、Erin E. McCann、Kerry J. Combs、Brenda Flam、Diane R. Sawicki、Al Sabetta、Anne Carrington、Janet Sredy、Eduardo Howard、Andre Mitschler、Alberto D. Podjarny
DOI:10.1016/j.bmc.2004.07.062
日期:2004.11
Recent efforts to identify treatments for chronic diabetic complications have resulted in the discovery of a novel series of highly potent and selective (2-arylcarbamoyl-phenoxy)-acetic acidaldosereductaseinhibitors. The compound class features a core template that utilizes an intramolecular hydrogen bond to position the key structural elements of the pharmacophore in a conformation, which promotes
最近鉴定慢性糖尿病并发症的治疗方法的努力导致发现了一系列新的高效和选择性的(2-芳基氨基甲酰基-苯氧基)乙酸醛糖还原酶抑制剂。化合物类别的特征是核心模板,该模板利用分子内氢键将药效基团的关键结构元件定位在构象中,从而促进了高结合亲和力。铅候选物,例如40,5-氟-2-(4-溴-2-氟-苄硫代氨基甲酰基)-苯氧基乙酸,抑制醛糖还原酶,IC(50)为30 nM,而对醛还原酶的活性低1100倍,是一种与活性醛解毒有关的酶。另外,实施例40在4天STZ诱导的糖尿病大鼠模型中以31mg / kg / d po的ED(50)降低了神经山梨糖醇水平。
[EN] ISOQUINOLINE POTASSIUM CHANNEL INHIBITORS<br/>[FR] INHIBITEURS DE CANAL POTASSIQUE D'ISOQUINOLINE
申请人:MERCK & CO INC
公开号:WO2005030729A1
公开(公告)日:2005-04-07
The present invention relates to compounds of structural formula I: I useful as potassium channel inhibitors to treat cardiac arrhythmias, and the like.
thio-evodiamine (66c) showed excellent in vitro and in vivo antitumor efficacy with good tolerability and low toxicity. Antitumor mechanism and target profiling studies indicate that compound 66c is the first-in-class triple topoisomerase I/topoisomerase II/tubulin inhibitor. Overall, this study provided an effective strategy for natural product-based drug discovery.
Urea thiadiazole inhibitors of plasminogen activator inhibior-1
申请人:Sartori Eric
公开号:US20050124664A1
公开(公告)日:2005-06-09
Methods of treating disorders associated with elevated levels of PAI-1 are disclosed comprising administering to a patient in need thereof a therapeutically effective amount of at least one compound of formula (I),
or a pharmaceutically-acceptable salt, prodrug, stereoisomer or solvate thereof, wherein: A is aryl o heteroaryl, and R
1
-R
12
, are defined herein. The invention also pertains to pharmaceutical compositions and compounds within the scope of formula (I) as well as medicaments and articles of manufacture comprising compounds of formula (I).