Photoredox‐Catalyzed Stereoselective Conversion of Alkynes into Tetrasubstituted Trifluoromethylated Alkenes
作者:Ren Tomita、Takashi Koike、Munetaka Akita
DOI:10.1002/anie.201505550
日期:2015.10.26
well‐predictable stereochemistry resulting from anti addition of the trifluoromethyl and triflate groups. Subsequent palladium‐catalyzed cross‐couplings led to tetrasubstituted trifluoromethylated alkenes in a highly stereoselective manner. The present method is the first example of a facile one‐potsynthesis of tetrasubstituted trifluoromethylated alkenesfrom simple alkynes.
Engineering Cytochrome P450s for Enantioselective Cyclopropenation of Internal Alkynes
作者:Kai Chen、Frances H. Arnold
DOI:10.1021/jacs.0c01313
日期:2020.4.15
carbene transfer to internal alkynes. Directed evolution of a serine-ligated P450 variant, P411-C10, yielded a lineage of engineered P411 enzymes that together accommodate a variety of internal aromatic alkynes as substrates for cyclopropenation with unprecedented efficiencies and stereoselectivities (up to 5760 TTN, and all with >99.9% ee). Using an internal aliphatic alkyne bearing a propargylic ether
This disclosure relates to new heterocyclic compounds that may be used to modulate a histamine receptor in an individual. Pyrido[4,3-b]indoles are described, as are pharmaceutical compositions comprising the compounds and methods of using the compounds in a variety of therapeutic applications, including the treatment of a cognitive disorder, psychotic disorder, neurotransmitter-mediated disorder and/or a neuronal disorder.
Amino-aryl-benzamide compounds and methods of use thereof
申请人:HEPANOVA, INC.
公开号:US11000491B2
公开(公告)日:2021-05-11
A method for the treatment and/or reduction of nonalcoholic fatty liver disease (NAFLD) and nonalcoholic steatohepatitis (NASH) is disclosed. The method uses active amino-aryl-benzamide compounds and methods for the preparation thereof.
Diverse carbene transferase enzyme catalysts derived from a P450 enzyme
申请人:California Institute of Technology
公开号:US11525123B2
公开(公告)日:2022-12-13
The present disclosure provides cytochrome P450 variants useful for carrying out in vivo and in vitro carbene insertion reactions. Methods for preparing carbene insertion products including cyclopropenes, cyclopropanes, bicyclobutanes, substituted lactones, cyclized compounds, and substituted amines are also described.