Efficient visible light mediated synthesis of quinolin-2(1<i>H</i>)-ones from quinoline<i>N</i>-oxides
作者:Susanta Mandal、Samuzal Bhuyan、Saibal Jana、Jagir Hossain、Karan Chhetri、Biswajit Gopal Roy
DOI:10.1039/d1gc01460a
日期:——
Quinolin-2(1H)-ones are one of the important classes of compounds due to their prevalence in natural products and in pharmacologically useful compounds. Here we present an unconventional and hitherto unknown photocatalytic approach to their synthesis from easily available quinoline-N-oxides. This reagent free highly atom economical photocatalytic method, with low catalyst loading, high yield and no
Water is demonstrated to be an excellent medium for the Wittigreaction employing stabilized ylides and aldehydes. Although the solubility in water appears to be an unimportant characteristic in achieving good chemical yields and E/Z-ratios, the rate of Wittigreactions in water is unexpectedly accelerated.
Combinatorial libraries of molecules and methods for producing same
申请人:The Scripps Research Institute
公开号:US05939268A1
公开(公告)日:1999-08-17
This invention features methods of synthesizing combinatorial libraries of chemical compounds, and combinatorial libraries of chemical compounds formed by the methods of this invention. Specifically, Diels-Alder chemistry is utilized to generate libraries of diverse molecules which are easily differentially functionalized with various chemical moities and in one aspect are configured to act as non-hydrolyzable peptidomimetics.
9A-SUBSTITUTED AZALIDES FOR THE TREATMENT OF MALARIA
申请人:Alihodzic Sulejman
公开号:US20090105301A1
公开(公告)日:2009-04-23
The present invention relates to novel 9a-substituted azalides having antimalarial activity. More particularly, the invention relates to 9a-substituted 9a-aza-9-deoxo-9-dihydro-9a-homoerythromycin A, 3-O-decladinosyl-9a-aza-9-deoxo-9-dihydro-9a-homoerythromycin A and 3-O-decladinosyl-5-O-dedesosaminyl-9a-aza-9-deoxo-9-dihydro-9a-homoerythromycin A compounds having antimalarial activity, to the method of preparation, to the method of use, and to pharmaceutically acceptable derivatives thereof having antimalarial activity.