A unique gold(I)-catalyzed 5-endo-dig cyclization/aerobic oxidationcascade strategy from 1,5-enyne substrates with molecular oxygen as the oxidant to yield the indenone was described. The reaction mechanism was studied by heavy atom labelling and some related experiments. This method was applied to the formal total synthesis of isoprekinamycin.
[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.