AbstractIodine‐catalyzed intermolecular dehydrogenative aromatizations of six‐membered cyclohexanones for the selective synthesis of 2‐sulfanylphenols have been developed. Both aryl and alkyl disulfides can be used as sulfanylation reagents to give the desired products in good yields under the optimized reaction conditions. The catalytic reaction uses dimethyl sulfoxide or oxygen as the terminal oxidant and avoids the use of transition metal catalysts. In addition, α‐sulfanyl enones could also be obtained via an iodine‐catalyzed oxidative system from simple cyclic ketones using dimethyl sulfoxide as the oxidant.magnified image
Facile Synthesis of 2-(Phenylthio)phenols by Copper(I)-Catalyzed Tandem Transformation of C−S Coupling/C−H Functionalization
作者:Runsheng Xu、Jie-Ping Wan、Hui Mao、Yuanjiang Pan
DOI:10.1021/ja107758d
日期:2010.11.10
2-(Phenylthio)phenols were successfully synthesized from simple phenols and aromatic halides by using dimethyl sulfoxide as the oxidant. The transformation was accomplished via tandem copper(I)-catalyzed C-S coupling/C-H functionalization employing the CuI/L [L = (E)-3-(dimethylamino)-1-(2-hydroxyphenyl)prop-2-en-1-one] catalyst system. The mechanism of the reaction was elucidated based on an isotope
Direct sulfenylation and selenylation of phenols using a stoichiometric amount of FeCl3 under an oxygen atmosphere has been developed. The chalcogenated phenols were shown to be suitable for preparing S- and Se-containing compounds using the reaction of the remaining hydroxy group.
[EN] NOVEL GLUCOCORTICOID RECEPTOR AGONISTS<br/>[FR] NOUVEAUX AGONISTES DU RÉCEPTEUR DES GLUCOCORTICOÏDES
申请人:PFIZER LTD
公开号:WO2010136940A1
公开(公告)日:2010-12-02
This invention relates to novel glucocorticoid receptor agonists of formula (I) and to processes and intermediates for their preparation. The present invention also relates to pharmaceutical compositions containing these compounds, to their combination with one or more other therapeutic agents, as well as to their use for the treatment of a number of inflammatory and allergic diseases, disorders and conditions.
This invention relates to novel glucocorticoid receptor agonists of formula (I):
and to processes and intermediates for their preparation. The present invention also relates to pharmaceutical compositions containing these compounds, to their combination with one or more other therapeutic agents, as well as to their use for the treatment of a number of inflammatory and allergic diseases, disorders and conditions.