Original antileishmanial hits: Variations around amidoximes
作者:Clémence Tabélé、Viviane dos S. Faiões、Fabien Grimaud、Eduardo Caio Torres-Santos、Omar Khoumeri、Christophe Curti、Patrice Vanelle
DOI:10.1016/j.ejmech.2018.02.029
日期:2018.3
antileishmanial activity at lower than 10 μM with moderate to low toxicity. Six of these molecules showed activity at lower than 10 μM against promastigotes and toxicity at higher than 50 μM were selected and evaluated for their activity against intracellular Leishmania amazonensis amastigotes. Modulating chemical substituents in position 2 of dihydrofuran highly influenced their antileishmanial activities. The
Cross-coupling reactions between 2-methyl-2-propen-1-ol and various boronic acids are used to obtain aromatic-(2-methylallyl) derivatives. However, deboronation or isomerization side reactions may occur for several boronic acids. We describe herein the synthesis of original alkenes with good yields under mild reaction conditions that decrease these side reactions. The scope of this environmentally benign reaction is thereby extended to a wide variety of boronic acids. A mechanistic study was conducted and suggested a plausible catalytic cycle mechanism, pointing to the importance of the Lewis acidity of the boronic acid used.
Thiourea–I2 as Lewis base–Lewis acid cooperative catalysts are developed for the iodochlorination of alkenes with in situ-generated iodinemonochloride (I–Cl). The Lewis base–Lewis acid cooperative system is sufficient to generate I–Cl from I2 with a chlorinating reagent at low temperature. Based on the solid-state structure of the active species, thiourea–I2 cooperatively captures I–Cl. By taking
硫脲-I 2作为路易斯碱-路易斯酸协同催化剂被开发用于用原位生成的一氯化碘(I-Cl)进行烯烃的碘氯化。刘易斯碱-路易斯酸协同体系足以在低温下用氯化剂从I 2生成I-Cl 。基于活性物质的固态结构,硫脲I 2协同捕获I Cl。通过利用I–Cl生成和在低温下控制I–Cl的优势,硫脲– I 2协同系统抑制了由高反应性游离I–Cl引起的副反应。
Palladium-Catalyzed Stereo- and Regiospecific Allylation of Aryl Halides with Homoallyl Alcohols via Retro-Allylation: Selective Generation and Use of σ-Allylpalladium
Treatment of tertiary homoallylalcohol with aryl halide under palladium catalysis resulted in the transfer of the allyl moiety of the homoallylalcohol to aryl halide and yielded the corresponding cross-coupling product stereo- and regiospecifically. The transfer process includes retro-allylation, which proceeds via a conformationally regulated six-membered transition state. The retro-allylation can
[EN] COMPOUNDS FOR THE TREATMENT OF BOVINE OR SWINE RESPIRATORY DISEASE<br/>[FR] COMPOSÉS POUR LE TRAITEMENT D'UNE MALADIE RESPIRATOIRE BOVINE OU PORCINE
申请人:INTERVET INT BV
公开号:WO2020002238A1
公开(公告)日:2020-01-02
The present invention provides compounds of formula (I) for use in the treatment of respiratory diseases of animals, especially Bovine or Swine Respiratory disease (BRD and SRD).