[EN] NOVEL 6,7-DIHYDROBENZO[A]QUINOLIZIN-2-ONE DERIVATIVES FOR THE TREATMENT AND PROPHYLAXIS OF HEPATITIS B VIRUS INFECTION<br/>[FR] NOUVEAUX DÉRIVÉS DE 6,7-DIHYDROBENZO[A]QUINOLIZIN-2-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:WO2016071215A1
公开(公告)日:2016-05-12
The invention provides novel compounds having the general formula (I) wherein R1 to R6, W and X are as described herein and their pharmaceutically acceptable salt, enantiomer or diastereomer thereof, and compositions including the compounds and methods of using the compounds.
Decarboxylative and dehydrative coupling of dienoic acids and pentadienyl alcohols to form 1,3,6,8-tetraenes
作者:Ghina’a I Abu Deiab、Mohammed H Al-Huniti、I F Dempsey Hyatt、Emma E Nagy、Kristen E Gettys、Sommayah S Sayed、Christine M Joliat、Paige E Daniel、Rupa M Vummalaneni、Andrew T Morehead、Andrew L Sargent、Mitchell P Croatt
DOI:10.3762/bjoc.13.41
日期:——
Dienoic acids and pentadienyl alcohols are coupled in a decarboxylative and dehydrative manner at ambient temperature using Pd(0) catalysis to generate 1,3,6,8-tetraenes. Contrary to related decarboxylative coupling reactions, an anion-stabilizing group is not required adjacent to the carboxyl group. Of mechanistic importance, it appears that both the diene of the acid and the diene of the alcohol
A detailed study of the Ni‐catalyzed [4+3+2] cycloaddition reaction between ethyl cyclopropylideneacetate and dienynes has been conducted, resulting in the development of a newmethod for the synthesis of compounds containing nine‐membered rings. We studied the reactivity of various dienynes, together with their substituent and conformational effects. The mechanism of the reaction was probed by examining
2-(Chlorodiisopropylsilyl)-6-(trimethylsilyl)phenyl triflate serves as an efficient aryne precursor for intramolecular benzyne [4 + 2] or (2 + 2 + 2) cycloadditions. Key features of this precursor are (1) rapid connection of various arynophiles to the precursor via a Si–O bond and (2) generation of aryne undermildconditions using a combination of Cs2CO3 and 18-crown-6.
Au(PPh3)OPOF2-catalyzed intramolecular [4+2] cycloaddition reaction of dienynes
作者:Soo Min Kim、Ji Hoon Park、Young Keun Chung
DOI:10.1039/c1cc11127b
日期:——
Solvolysis of Au(PPh(3))PF(6) afforded Au(PPh(3))OPOF(2) which is an effective catalyst in the intramolecular [4+2] cycloaddition of unactivated dienynes bearing a terminal alkyne.