Contra-thermodynamic E → Z isomerization of cinnamamides via selective energy transfer catalysis
作者:Marc R. Becker、Tobias Morack、Jack Robertson、Jan B. Metternich、Christian Mück-Lichtenfeld、Constantin Daniliuc、Glenn A. Burley、Ryan Gilmour
DOI:10.1016/j.tet.2020.131198
日期:2020.12
A bio-inspired, photocatalytic E → Z isomerization of cinnamides is reported using inexpensive (−)-riboflavin (vitamin B2) under irradiation at λ = 402 nm. This operationally simple transformation is compatible with a range of amide derivatives including –NR2, –NHSO2R and N(Boc)2 (up to 99:1 Z:E). Selective energy transfer from the excited state photocatalyst to the starting E-isomer ensures that directionality
[EN] INHIBITORS OF CBL-B AND METHODS OF USE THEREOF<br/>[FR] INHIBITEURS DE CBL-B ET LEURS PROCÉDÉS D'UTILISATION
申请人:NURIX THERAPEUTICS INC
公开号:WO2019148005A1
公开(公告)日:2019-08-01
Compounds, compositions, and methods for use in inhibiting the E3 enzyme Cbl-b in the ubiquitin proteasome pathway are disclosed. The compounds, compositions, and methods can be used to modulate the immune system, to treat diseases amenable to immune system modulation, and for treatment of cells in vivo, in vitro, or ex vivo.
[EN] HETEROARYL COMPOUNDS AS KINASE INHIBITOR<br/>[FR] COMPOSÉS HÉTÉROARYLE UTILISÉS EN TANT QU'INHIBITEUR DE KINASE
申请人:FUJIAN HAIXI PHARMACEUTICALS CO LTD
公开号:WO2019174601A1
公开(公告)日:2019-09-19
Provided herein are heteroaryl compounds of formula (I) having activity on a receptor protein tyrosine kinase, wherein R 1, R 2, R 3, A, Q, Z, X and W are set forth in the description, as well as solvates, hydrates, tautomers or pharmaceutically acceptable salts thereof.
Cyanophosphates (CPs) can be easily prepared from either ketones or aldehydes, and their reaction with NaN3–Et3N·HCl results in the formation of azidotetrazoles. Under microwave irradiation, successive fragmentation of the azidotetrazoles generates alkylidene carbenes that undergo [1,2]-rearrangement and are transformed into homologous alkynes. Treatment of ketone-derived CPs with TMSN3 and Bu2SnO
Hypervalent Iodine Reagents Enable Chemoselective Deboronative/Decarboxylative Alkenylation by Photoredox Catalysis
作者:Hanchu Huang、Kunfang Jia、Yiyun Chen
DOI:10.1002/anie.201410176
日期:2015.2.2
hypervalent‐iodine‐enabled radical decarboxylative alkenylation reaction, and a novel benziodoxole‐vinyl carboxylic acid reaction intermediate was isolated. This C(sp3)C(sp2) coupling reaction leads to aryl‐and acyl‐substituted alkenes containing various sensitive functional groups. The excellent chemoselectivity, stable reactants, and neutral aqueous reaction conditions of the reaction suggest future biomolecule