[EN] CHROMAN-4-ONE DERIVATIVES FOR THE TREATMENT AND PROPHYLAXIS OF HEPATITIS B VIRUS INFECTION [FR] DÉRIVÉS DE CHROMAN-4-ONE POUR LE TRAITEMENT ET LA PROPHYLAXIE D'UNE INFECTION PAR LE VIRUS DE L'HÉPATITE B
Regioselective formylation of 1,3-disubstituted benzenes through in situ lithiation
作者:Le Wang、Yan Wang、Fangxu Guo、Yue Zheng、Pinaki S. Bhadury、Zhihua Sun
DOI:10.1016/j.tetlet.2013.08.098
日期:2013.11
A facile method of regioselective formylation of disubstituted benzene via in situ deprotonation/metalation using n-BuLi/TMEDA/DIPA has been developed. Effect of different electron withdrawing and electron donating substituents in 1,3-interrelated aromatic system was studied; the metalation mostly occurred at the 2-position to afford the desired products in high yields. (c) 2013 Elsevier Ltd. All rights reserved.
CHROMAN-4-ONE DERIVATIVES FOR THE TREATMENT AND PROPHYLAXIS OF HEPATITIS B VIRUS INFECTION
申请人:F. Hoffmann-La Roche AG
公开号:EP3894004A1
公开(公告)日:2021-10-20
[EN] CHROMAN-4-ONE DERIVATIVES FOR THE TREATMENT AND PROPHYLAXIS OF HEPATITIS B VIRUS INFECTION<br/>[FR] DÉRIVÉS DE CHROMAN-4-ONE POUR LE TRAITEMENT ET LA PROPHYLAXIE D'UNE INFECTION PAR LE VIRUS DE L'HÉPATITE B
申请人:HOFFMANN LA ROCHE
公开号:WO2020120642A1
公开(公告)日:2020-06-18
The present invention provides compounds having the general formula (I) wherein R1 to R10, Gi, G2, X and m are as described herein, compositions including the compounds and methods of using the compounds for treating hepatitis B.
Sequential Energy Transfer Catalysis: A Cascade Synthesis of Angularly-Fused Dihydrocoumarins
作者:Tomáš Neveselý、Constantin G. Daniliuc、Ryan Gilmour
DOI:10.1021/acs.orglett.9b03882
日期:2019.12.6
enable the conversion of diversely substituted cinnamic acidderivatives into angularly-fused dihydrocoumarins (up to 94%). Inspired by coumarin biosynthesis, this reaction cascade harnesses photochemical E → Z alkene isomerization enabled by energy transfer catalysis using inexpensive thioxanthen-9-one (TX) under irradiation at 402 nm. Subsequent lactonization generates the heterocyclic core prior