[EN] NOVEL PREPARATION METHOD OF QUINOLINE N-OXIDE DERIVATIVE WITH AMIDE GROUP [FR] NOUVEAU PROCÉDÉ DE PRÉPARATION D'UN DÉRIVÉ DE N-OXYDE DE QUINOLÉINE AYANT UN GROUPE AMIDE
Regioselective Introduction of Heteroatoms at the C-8 Position of Quinoline <i>N</i>-Oxides: Remote C–H Activation Using <i>N</i>-Oxide as a Stepping Stone
Reported herein is the metal-catalyzed regioselective C-H functionalization of quinoline N-oxides at the 8-position: direct iodination and amidation were developed using rhodium and iridium catalytic systems, respectively. Mechanistic study of the amidation revealed that the unique regioselectivity is achieved through the smooth formation of N-oxide-chelated iridacycle and that an acid additive plays
Rh(III)-Catalyzed Traceless Coupling of Quinoline <i>N</i>-Oxides with Internal Diarylalkynes
作者:Upendra Sharma、Yoonsu Park、Sukbok Chang
DOI:10.1021/jo501995c
日期:2014.10.17
Quinoline N-oxides were found to undergo Cp*Rh(III)-catalyzed coupling with internal diarylalkynes to provide 8-functionalized quinolines through a cascade process that involves remoteC–H bond activation, alkyne insertion, and intramolecular oxygen atom transfer. In this reaction, the N-oxide plays a dual role, acting as a tracelessdirectinggroup as well as a source of oxygen atom, as confirmed
[EN] COMPOUNDS, COMPOSITIONS, AND METHODS FOR SELECTIVELY INHIBITING β-GLUCURONIDASES AND ALLEVIATING SIDE EFFECTS ASSOCIATED WITH DRUG TREATMENT INDUCED DIARRHEA<br/>[FR] COMPOSÉS, COMPOSITIONS ET MÉTHODES D'INHIBITION SÉLECTIVE DES BETA-GLUCURONIDASES ET D'ATTÉNUATION DES EFFETS SECONDAIRES ASSOCIÉS À UNE DIARRHÉE PROVOQUÉE PAR UN TRAITEMENT MÉDICAMENTEUX
申请人:SYMBERIX INC
公开号:WO2019051185A1
公开(公告)日:2019-03-14
The present disclosure describes compounds and compositions that inhibit β-glucuronidase activity, and methods for attenuating the side effects of one or more drugs and improving the efficacy of drugs by administration of selective β-glucuronidase inhibitors.
The present invention relates novel heterocyclic analogs of combretastatin, their synthesis, and their use as anti-cancer compounds. In particular, compounds of Formula (I), Formula (II), and Formula (V) are provided.
The present invention relates novel heterocyclic analogs of combretastatin, their synthesis, and their use as anti-cancer compounds. In particular, compounds of Formula (I), Formula (II), and Formula (V) are provided.