The direct cross-coupling of quinoline-N-oxides with olefin derivatives has been realized using palladium acetate as the catalyst in the absence of external ligand and oxidant to give the corresponding 2-alkenylated quinolines and 1-alkenylated isoquinolines chemo- and regioselectively in 27-95% yield. The catalytic process is proposed to proceed via direct C-H bond activation of the quinoline-N-oxide with Pd(OAc)(2) followed by Heck coupling with the olefin. The resultant N-oxide of the alkenylated quinoline can oxidize the reduced Pd(0) to regenerate the Pd(11) active species and simultaneously release the 2-alkenylated quinoline without using any external oxidants and reductants.
[EN] DERIVATIVES OF PIPERLONGUMINE AND USES THEREOF<br/>[FR] DÉRIVÉS DE PIPERLONGUMINE ET LEURS UTILISATIONS
申请人:AURANSA INC
公开号:WO2019103897A1
公开(公告)日:2019-05-31
The present invention relates to a group of 1-[(E)-3-(3,4,5-trimethoxyphenyl)prop-2-enoyl]-2,3- dihydropyridin-6-one (piperlongumine) derivatives, analogs and pharmaceutically acceptable salts thereof. The present invention also relates to processes for preparing the same; a pharmaceutical composition and formulation containing a derivative of piperlogumine; and use of the derivatives and analogs for treating cancer.
The present invention relates to a group of 1-[(E)-3-(3,4,5-trimethoxyphenyl)prop-2-enoyl]-2,3-dihydropyridin-6-one (piperlongumine) derivatives, analogs and pharmaceutically acceptable salts thereof. The present invention also relates to a pharmaceutical composition and formulation containing a derivative of piperlongumine; and use of the derivatives and analogs for treating cancer, reducing inflammation and/or treating an autoimmune or inflammatory disease.