[EN] RSV ANTIVIRAL PYRAZOLO- AND TRIAZOLO-PYRIMIDINE COMPOUNDS<br/>[FR] COMPOSÉS DE PYRAZOLO- ET TRIAZOLO-PYRIMIDINE ANTIVIRAUX DU VIRUS RESPIRATOIRE SYNCYTIAL (VRS)
申请人:JANSSEN SCIENCES IRELAND UC
公开号:WO2016174079A1
公开(公告)日:2016-11-03
The invention concerns novel substituted pyrazolo- and triazolo-pyrimidine compounds of formula (I) having antiviral activity, in particular, having an inhibitory activity on the replication of the respiratory syncytial virus (RSV). The invention further concerns pharmaceutical compositions comprising these compounds and the compounds for use in the treatment of respiratory syncytial virus infection.
<i>gem</i>-Dimethylcyclopropanation of dibenzylideneacetone using triisopropyl sulfoxonium tetrafluoroborate
作者:Michael G. Edwards、David S. Pugh、Adrian C. Whitwood、Richard J. K. Taylor
DOI:10.1107/s0108270108042431
日期:2009.2.15
dibenzylideneacetone (dba) and triisopropyl sulfoxonium tetrafluoroborate has been reinvestigated. The stereochemistry of the major diasteromeric bis(gem‐dimethylcyclopropane) adduct has now been assigned as [(1RS,3RS)‐2,2‐dimethyl‐3‐phenylcyclopropyl][(1SR,3SR)‐2,2‐dimethyl‐3‐phenylcyclopropyl]methanone, C23H26O, by X‐ray crystallographicstudies on a twinned crystal. The asymmetric unit contains two
作者:Sharon Chow、Tanja Krainz、Paul V. Bernhardt、Craig M. Williams
DOI:10.1021/acs.orglett.9b03379
日期:2019.11.1
promotors, due to protein kinase C (PKC) activation, but more recently higher oxidized natural derivatives have been shown to display antitumor activity. Given the synthetic difficulty, systematic non-natural systems are not readily available to further interrogate PKC binding. Herein reported is the concise construction of a considerably advanced intermediate toward D-ring inverted phorbol esters, enabled
Synthetic Tigliane Intermediates Engage Thiols to Induce Potent Cell Line Selective Anti‐Cancer Activity
作者:Sharon Chow、Tanja Krainz、Christian J. Bettencourt、Natasa Broit、Blake Ferguson、Mingzhao Zhu、Kenneth G. Hull、Gregory K. Pierens、Paul V. Bernhardt、Peter G. Parsons、Daniel Romo、Glen M. Boyle、Craig M. Williams
DOI:10.1002/chem.202003221
日期:2020.10.21
effects on potency. Furthermore, although the non‐naturalderivatives did not outcompete the natural systems in the PKC‐activation sensitive MCF7 cancer cell line, they outperformed in other cancer cell lines (MM96L and CAL27). This observation strongly suggested an alternate mode of action not involving activation of PKC, but instead involves thiol addition as indicated by glutathione addition and NF‐κB
A desymmetrization approach to centrally chiral unfunctionalized arenes is developed through the enantioselective de novo construction of the arene ring by oxidative [4+2]-cycloaddition of polycyclic meso-cyclohexenediones. Catalyzed by a diphenylprolinol silyl ether, this external oxidant-free protocol gives rise to diversely substituted chiral arenes with outstanding enantioselectivity (up to >99