Evolution of Pyrrolidine-Type Asymmetric Organocatalysts by “Click” Chemistry
摘要:
[GRAPHICS]Click chemistry has been employed to construct a library of the pyrrolidine-type asymmetric organocatalysts. The clicked organocatalysts were evaluated in asymmetric Michael addition of ketones to nitroolefins, showing good catalytic activity and stereoselectivity (up to 100% yield, syn:anti=99:1, 96% ee).
Acetylenic Amides. I. Synthesis of N-Substituted-2-propynamides
摘要:
The efficient synthesis of N-substituted-2-propynamides was accomplished by three methods; the reaction of amines with either the N-hydroxysuccinimide ester or mixed anhydride of propiolic acid, or by the interaction of lithiotrimethylsilylacetylene with isocyanates followed by desilation with fluoride.
CONJUGATES OF CEREBLON BINDING COMPOUNDS AND G12C MUTANT KRAS, HRAS OR NRAS PROTEIN MODULATING COMPOUNDS AND METHODS OF USE THEREOF
申请人:Araxes Pharma LLC
公开号:US20180015087A1
公开(公告)日:2018-01-18
Conjugates of a cereblon-binding compound and compounds having modulatory activity against G12C mutant KRAS, HRAS or NRAS G12C proteins are provided. Methods associated with preparation and use of such conjugates, pharmaceutical compositions comprising such conjugates and methods to modulate the activity of G12C mutant KRAS, HRAS or NRAS G12C proteins for treatment of disorders, such as cancer, are also provided.
The present invention provides compounds, pharmaceutically acceptable compositions thereof, and methods of using the same.
本发明提供了化合物、药学上可接受的组合物以及使用它们的方法。
HCV PROTEASE INHIBITORS AND USES THEREOF
申请人:Niu Deqiang
公开号:US20090176858A1
公开(公告)日:2009-07-09
The present invention provides compounds, pharmaceutically acceptable compositions thereof, and methods of using the same.
本发明提供了化合物、药学上可接受的组合物以及使用它们的方法。
ALGORITHM FOR DESIGNING IRREVERSIBLE INHIBITORS
申请人:Singh Juswinder
公开号:US20100185419A1
公开(公告)日:2010-07-22
The invention is an algorithm and method for designing an inhibitor that covalently binds a target polypeptide. The algorithm and method can be used to rapidly and efficiently convert reversible inhibitors into irreversible inhibitors.
The chemistry of cyanoacetylenes. Part I. Reactions of nitrilium ions conjugated with acetylene
作者:Tadashi Sasaki、Shoji Eguchi、Katsuhiko Shoji
DOI:10.1039/j39690000406
日期:——
Although chlorocyanoacetylene is converted into an amide in sulphuric acid, cyanoacetylene itself is not. Nevertheless, both nitriles undergo the Ritter reaction with olefins and alcohols. N-(1,1-Dimethyl-2-chloroethyl)-propiolamide, one of the Ritter reaction products, gives an oxazoline on treatment with alkoxide, with accompanying addition of the alkoxide to the triple bond.