Low energy light-triggered oxidative cleavage of olefins
摘要:
A series of substituted olefins were tested for their reactivity with singlet oxygen as a singlet oxygen-mediated cleavable linker. Low intensity light of 200 mW/cm(2) was irradiated to the solution of an olefin and 5,10,15-triphenyl-20-(4-hydroxyphenyl)-21H,23H-porphyrin under atmospheric condition, Among the tested olefins, 1,2-cis-diphenoxyethylene reacted fast with singlet oxygen, >80% within 15 min yielding a stoichiometric conversion to aldehyde product without ally side reactions. (C) 2008 Elsevier Ltd. All rights reserved.
HETEROARYL/ARYL PYRIMIDINE ANALOGS AND THEIR USE AS AGONISTS OF THE WNT-BETA-CATENIN CELLULAR MESSAGING SYSTEM
申请人:BURSAVICH Matthew Gregory
公开号:US20080287452A1
公开(公告)日:2008-11-20
The present invention relates to heteroaryl/aryl pyrimidine analogs, methods of making aryl/heteroaryl pyrimidine analogs, compositions comprising a aryl/heteroaryl pyrimidine analog, and methods for treating canonical Wnt-β-catenin cellular messaging system-related disorders comprising administering to a subject in need thereof an effective amount of a heteroaryl/aryl pyrimidine analog.
Directed C–C bond cleavage of a cyclopropane intermediate generated from<i>N</i>-tosylhydrazones and stable enaminones: expedient synthesis of functionalized 1,4-ketoaldehydes
-quaternary centers via regioseletive C-C bond activation has been described. Through cyclopropanation of bench-stable enaminones with in situ generated diazo reagents from N-tosylhydrazones, followed by selective C-C bond cleavage of the cyclopropane ring affords the 1, 4-ketoaldehyde derivatives in good to excellent yields. This method works with broad substrate scope and high regioseletivity.
[EN] HETEROCYCLIC COMPOUNDS AND USES THEREOF<br/>[FR] COMPOSÉS HÉTÉROCYCLIQUES ET LEURS UTILISATIONS
申请人:INFINITY PHARMACEUTICALS INC
公开号:WO2015051241A1
公开(公告)日:2015-04-09
Compounds and pharmaceutical compositions that modulate kinase activity, including PI3 kinase activity, and compounds, pharmaceutical compositions, and methods of treatment of diseases and conditions associated with kinase activity, including PI3 kinase activity, are described herein.
KIO<sub>3</sub>-Catalyzed Aerobic Cross-Coupling Reactions of Enaminones and Thiophenols: Synthesis of Polyfunctionalized Alkenes by Metal-Free C–H Sulfenylation
The synthesis of polyfunctionalized aminothioalkenes has been realized via the direct C–H sulfenylation of enaminones and analogous enamines. These cross-coupling reactions have been achieved by simple KIO3 catalysis under aerobic conditions without employing any transition metal catalyst or additional oxidant. The employment of bio-basedgreensolventethyllactate as the reaction medium constitutes
METHOD OF PRODUCING PYRONE AND PYRIDONE DERIVATIVES
申请人:Sumino Yukihito
公开号:US20120022251A1
公开(公告)日:2012-01-26
The present invention provides a pyrone derivative and a pyridone derivative, which are novel intermediates for synthesizing an anti-influenza drug, a method of producing the same, and a method of using the same.