Optimization of Potent Inhibitors of P. falciparum Dihydroorotate Dehydrogenase for the Treatment of Malaria
摘要:
Inhibition of dihydroorotate dehydrogenase (DHODH) for P. falciparum potentially represents a new treatment option for malaria, since DHODH catalyzes the rate-limiting step in the pyrimidine biosynthetic pathway and P. falciparum is unable to salvage pyrimidines and must rely on de novo biosynthesis for survival. We report herein the synthesis and structure-activity relationship of a series of 5-(2-methylbenzimidazol-1-yl)-N-alkylthiophene-2-carboxamides that are potent inhibitors against PfDHODH but do not inhibit the human enzyme. On the basis of efficacy observed in three mouse models of malaria, acceptable safety pharmacology risk assessment and safety toxicology profile in rodents, lack of potential drug-drug interactions, acceptable ADME/pharmacokinetic profile, and projected human dose, 5-(4-cyano-2-methyl-1H-benzo[d]imidazol-1-yl)-N-cyclopropylthiophene-2-carboxamide 2q was identified as a potential drug development candidate.
[EN] MORPHOLINE AND 1,4-OXAZEPANE AMIDES AS SOMATOSTATIN RECEPTOR SUBTYPE 4 (SSTR4) AGONISTS<br/>[FR] AMIDES DE MORPHOLINE ET DE 1,4-OXAZÉPANE UTILISÉS EN TANT QU'AGONISTES DU SOUS-TYPE 4 DU RÉCEPTEUR DE LA SOMATOSTATINE (SSTR4)
申请人:BOEHRINGER INGELHEIM INT
公开号:WO2016075240A1
公开(公告)日:2016-05-19
The invention relates to morpholine and 1,4-oxazepane amide derivatives of general formula (I), which are agonists of somatostatin receptor subtype 4 (SSTR4), useful for preventing or treating medical disorders related to SSTR4. In addition, the invention relates to processes for preparing pharmaceutical compositions as well as processes for manufacture of the compounds according to the invention.
[EN] PYRROLOPYRIMIDINE ALKYNYL COMPOUNDS AND METHODS OF MAKING AND USING SAME<br/>[FR] COMPOSÉS D'ALCYNYLE DE PYRROLOPYRIMIDINE ET LEURS PROCÉDÉS DE PRÉPARATION ET D'UTILISATION
申请人:TARGEGEN INC
公开号:WO2009055674A1
公开(公告)日:2009-04-30
Provided herein are pyrrolopyrimide alkynyl compounds, and methods of making and using the same. Such compounds may be used in inflammatory or myeloproliferative disorders. The disclosure also provides for treating cancer.
RhIII ] complex, bearing an acidic secondary amide moiety on the Cpring, is able to catalyze the ortho-bromination of O-phenyl carbamates with N-bromosuccinimide (NBS) at room temperature. The presence of the acidic secondary amide moiety on the CpA ligand accelerates the bromination by the hydrogen bond between the acidic NH group of the CpA ligand and the carbonyl group of NBS.
Pd‐Catalyzed Carbonylative Synthesis of 4
<i>H</i>
‐Benzo[
<i>d</i>
][1,3]Oxazin‐4‐Ones Using Benzene‐1,3,5‐Triyl Triformate as the CO Source
作者:Yan Zheng、Mengke Dong、Erdong Qu、Jin Bai、Xiao‐Feng Wu、Wanfang Li
DOI:10.1002/chem.202103137
日期:2021.11.22
A Pd-catalyzed CO-free carbonylative synthesis of 4H-benzo[d][1,3]oxazin-4-one derivatives was developed. This new method employed readily available N-(o-bromoaryl)amides as the starting materials and inexpensive benzene-1,3,5-triyl triformate (TFBen) as the stable solid CO surrogate, which would not cause hydrodehalogenation of the starting materials. Remarkably, this method featured a very broad
开发了 Pd 催化的 4 H -benzo[ d ][1,3]oxazin-4-one 衍生物的无 CO 羰基化合成。这种新方法使用容易获得的N -(邻溴芳基)酰胺作为起始原料,使用廉价的三甲酸苯-1,3,5-三酯(TFBen)作为稳定的固体 CO 替代物,不会引起起始原料的加氢脱卤。值得注意的是,该方法具有非常广泛的底物范围,特别适用于将苯并[ d ][1,3]oxazin-4-one结构引入药物和天然生物活性化合物中。
Mild CH Halogenation of Anilides and the Isolation of an Unusual Palladium(I)-Palladium(II) Species
作者:Robin B. Bedford、Mairi F. Haddow、Charlotte J. Mitchell、Ruth L. Webster
DOI:10.1002/anie.201101606
日期:2011.6.6
Reducing the load: A facile palladium‐catalyzed ortho‐selective bromination and chlorination of anilides occurs under aerobic conditions at room temperature when N‐halosuccinimides (NXS) are used in the presence of p‐toluenesulfonic acid (PTSA). The orthopalladated PTSA complex is not only catalytically competent but also undergoes a reductive process to yield an unusual PdI–PdII tetramer (see structure;
减少负荷:在有氧条件下,在对甲苯磺酸(PTSA)的存在下使用N-卤代琥珀酰亚胺(NXS)时,在室温下好氧条件下,钯的催化邻位溴化和氯离子氯化很容易进行。正统的PTSA配合物不仅具有催化能力,而且还经过还原过程生成不寻常的Pd I –Pd II四聚体(见结构; Pd绿色,O红色,S黄色和C灰色)。