[EN] TRIAZOLE AND IMIDAZOLE DERIVATIVES FOR USE AS TGR5 AGONISTS IN THE TREATMENT OF DIABETES AND OBESITY<br/>[FR] DÉRIVÉS DE TRIAZOLE ET D'IMIDAZOLE DESTINÉS À ÊTRE UTILISÉS EN TANT QU'AGONISTES DE TGR5 DANS LE TRAITEMENT DU DIABÈTE ET DE L'OBÉSITÉ
申请人:EXELIXIS INC
公开号:WO2010093845A1
公开(公告)日:2010-08-19
The present invention comprises TGR5 agonists of structural formula I, wherein X, R1, R2, and R5 are defined herein, as well as N-oxides of them and pharmaceutically acceptable salts thereof. The invention further comprises composition comprising the compounds, N-oxides, and/or pharmaceutically acceptable salts thereof. The invention also comprises use of the compounds and compositions for treating diseases in which TGR5 is a mediator or is implicated. The invention also comprises use of the compounds in and for the manufacture of medicaments, particularly for treating diseases in which TGR5 is a mediator or is implicated.
Abstract Benzal chlorides and benzal bromides were conveniently synthesized by reaction of aryl aldehydes with a Vilsmeier type reagent formed in situ by reduction of CC14 or CBr4 in dimethylformamide (DMF) as solvent.
One-pot, oxidative and selective conversion of benzylic silyl and tetrahydropyranyl ethers to <i>gem</i>-dichlorides using trichloroisocyanuric acid and triphenylphosphine as an efficient and neutral system
作者:Roqayeh Khadem Moghaddam、Ghasem Aghapour
DOI:10.1080/10426507.2020.1845680
日期:2021.4.3
Abstract A one-pot and oxidative method is described for the first time for the conversion of benzylic trimethylsilyl (TMS) and tetrahydropyranyl (THP) ethers to gem-dichlorides using trichloroisocyanuric acid (TCCA) and triphenylphosphine (PPh3) in neutral media. Various theses substrates containing electron withdrawing or donating groups can be efficiently converted to their corresponding gem-dichlorides
Conversion of Benzal Halides to Benzaldehydes in the Presence of Aqueous Dimethylamine
作者:Donald Bankston
DOI:10.1055/s-2003-44390
日期:——
Aqueous dimethylamine is an efficientreagent for the conversion of a variety of benzal halides to their corresponding benzaldehydes. Studies indicate that aqueous dimethylamine significantly accelerates aldehyde formation from benzal halide precursors, as compared to the use of water alone. Indeed, these reactions are routinely completed in one hour or less, depending upon substrate substitution.
The substituent parameters for the series of mono-, di- and trisubstituted Me groups, CH2X, CHX2, and CX3 where X is F, Cl, Br, OMe, SCF3 and CN, have been determined from F19 NMR measurements on the corresponding meta- and para-fluorotoluenes. An additive linear effect of substitution is found only for the cyano substituent. A saturation effect noted for the groups where X is F, Cl, Br and SCF3 (particularly