A simple and direct aerobic oxidativeesterification reaction of arylacetonitriles with alcohols/phenols is achieved in the presence of a copper salt and molecular oxygen, which produces a broad range of aryl carboxylic acid esters in good to high yields. Copper salt plays multiple roles in the transformation, which allows the oxygenation of CH bond, cleavage of inert CC bond, and formation of CO
COMPOUNDS THAT MODULATE PPAR ACTIVITY AND METHODS FOR THEIR PREPARATION
申请人:Auerbach J. Bruce
公开号:US20050153996A1
公开(公告)日:2005-07-14
This invention discloses compounds that alter PPAR activity. The invention also discloses pharmaceutically acceptable salts of the compounds, pharmaceutically acceptable compositions comprising the compounds or their salts, and methods of using them as therapeutic agents for treating or preventing disipidemia, hypercholesteremia, obesity, eating disorders, hyperglycemia, atherosclerosis, hypertriglyceridemia, hyperinsulinemia and diabetes in a mammal as well as methods of supressing appetite and modulating leptin levels in a mammal. The present invention also discloses methods for making the disclosed compounds.
Synthesis and Structure–Activity Relationships for Extended Side Chain Analogues of the Antitubercular Drug (6<i>S</i>)-2-Nitro-6-{[4-(trifluoromethoxy)benzyl]oxy}-6,7-dihydro-5<i>H</i>-imidazo[2,1-<i>b</i>][1,3]oxazine (PA-824)
作者:Brian D. Palmer、Hamish S. Sutherland、Adrian Blaser、Iveta Kmentova、Scott G. Franzblau、Baojie Wan、Yuehong Wang、Zhenkun Ma、William A. Denny、Andrew M. Thompson
DOI:10.1021/jm501608q
日期:2015.4.9
Novel extended side chain nitroimidazooxazine analogues featuring diverse linker groups between two aryl rings were studied as a potential strategy to improve solubility and oral activity against chronic infection by Mycobacterium tuberculosis. Both lipophilic and highly polar functionalities (e.g., carboxamide, alkylamine, piperazine, piperidine, but not sulfonamide) were well tolerated in vitro, and the hydrophilic linkers provided some solubility improvements, particularly in combination with pyridine rings. Most of the 18 compounds further assessed showed high microsomal stabilities, although in the acute infection mouse model, just one stilbene (6-fold) and two pyridine-containing acetylene derivatives (5-fold and >933-fold) gave in vivo efficacies notably superior to the clinical stage compound pretomanid (PA-824). The most efficacious analogue also displayed outstanding in vivo activity in the stringent chronic model (up to 24-fold better than the drug delamanid and 4-fold greater than our previous best phenylpyridine candidate), with favorable pharmacokinetics, including good oral bioavailability in the rat.