Environmentally benign decarboxylative <i>N</i>-, <i>O</i>-, and <i>S</i>-acetylations and acylations
作者:Santanu Ghosh、Anisha Purkait、Chandan K. Jana
DOI:10.1039/d0gc03731a
日期:——
An operationally simple and general method for acetylation and acylation of a wide variety of substrates (amines, alcohols, phenols, thiols, and hydrazones) has been reported. Meldrum's acid and its derivatives have been used as an air-stable, non-volatile, cost-effective, and easy to handle acetylating/acylating agent. Easily separable byproducts (CO2 and acetone) allowed the isolation of analytically
Site-Selective Cross-Coupling of Remote Chlorides Enabled by Electrostatically Directed Palladium Catalysis
作者:William A. Golding、Robert Pearce-Higgins、Robert J. Phipps
DOI:10.1021/jacs.8b08686
日期:2018.10.24
Control of site-selectivity in chemical reactions that occur remote from existing functionality remains a major challenge in synthetic chemistry. We describe a strategy that enables three of the most commonly used cross-coupling processes to occur with high site-selectivity on dichloroarenes that bear acidic functional groups. We have achieved this by repurposing an established sulfonylated phosphine
[EN] 2-(6-AMINO-PYRIDIN-3-YL)-2-HYDROXYETHYLAMINE DERIVATIVES AS BETA 2-ADRENOCEPTORS AGONISTS<br/>[FR] DERIVES DE 2-(6-AMINO-PYRIDINE-3-YL)-2-HYDROXYETHYLAMINE UTILISES COMME AGONISTES DES RECEPTEURS BETA 2-ADRENERGIQUES
申请人:PFIZER LTD
公开号:WO2004108676A1
公开(公告)日:2004-12-16
The invention relates to compounds of formula (1) and to processes for the preparation of, intermediates used in the preparation of, compositions containing and the uses of, such derivatives. The compounds according to the present invention are useful in numerous diseases, disorders and conditions, in particular inflammatory, allergic and respiratory diseases, disorders and conditions.
Acetyl Coenzyme A Carboxylase inhibitors, pharmaceutical compositions containing such compounds and the use of such compounds to treat for example, Metabolic Syndrome including atherosclerosis, diabetes and obesity.
[EN] COMPOUNDS HAVING BETA-AGONIST ACTIVITY<br/>[FR] COMPOSES PRESENTANT UNE ACTIVITE BETA-AGONISTE
申请人:PFIZER LTD
公开号:WO2005092841A1
公开(公告)日:2005-10-06
The invention relates to compounds of formula (1) and to processes for the preparation of, intermediates used in the preparation of, compositions containing and the uses of, such derivatives. The compounds according to the present invention are useful in numerous diseases, disorders and conditions, in particular inflammatory, allergic and respiratory diseases, disorders and conditions.