Fluorenylidenexanthenes 5-7 were synthesized by 2-fold extrusion diazo-thione couplings. 7 exhibited yellow crystals and purple (560 nm) solutions. (1)H NMR of 5 and 7 indicated subtle equilibria twisted (t) right harpoon over left harpoon anti-folded (a) major/minor conformations. (13)C DNMR of 6 gave DeltaG(c)(double dagger)(enantiomerization/inversion) = 26.5 kJ/mol and DeltaG(c)(double dagger)(E
The overcrowded thermochromic bistricyclicaromaticenes (BAEs) 10-(9′H-fluoren-9′-ylidene)-9(10H)-anthracenone (6), 10-(11′H-benzo[b]fluoren-11′-ylidene)-9(10H)-anthracenone (7), and 10-(1′,8′-diaza-9′H-fluoren-9′-ylidene)-9(10H)-anthracenone (8) were synthesized by applying Barton's twofold extrusion diazo-thione coupling method and their crystal and molecular structures were determined. BAEs 6–8
[EN] ISOPREKINAMYCIN ANALOGS AND SYNTHESES THEREOF<br/>[FR] ANALOGUES À L'ISOPRÉKINAMYCINE ET LEUR SYNTHÈSE
申请人:UNIV MANITOBA
公开号:WO2009019616A2
公开(公告)日:2009-02-12
The present invention relates to the preparation of various benzo[α]fluorenes The benzo[α]fluorene moiety appears in a variety of natural products, some of which have been shown to exhibit anticancer and antibacterial effects Methods of the present invention provide facile access to some of these natural products as well as derivatives thereof.
[EN] KINAMYCIN F FOR CANCER TREATMENT<br/>[FR] KINAMYCINE F UTILISÉE DANS LE TRAITEMENT DU CANCER
申请人:UNIV MANITOBA
公开号:WO2009027838A2
公开(公告)日:2009-03-05
Disclosed are methods relating to the use of kinamycin F as an anti-cancer agent. Cytotoxic methods induced by kinamycin F include DNA and protein damage and topoisomerase inhibition. As set forth herein, the anti-cancer effects of kinamycin F may be attributed to, for example, DNA binding, DNA intercalation, topoisomerase Ilα decatenation activity inhibition and/or production of radical species by kinamycin F.