作者:Evan S. DiVirgilio、Elizabeth C. Dugan、Carol A. Mulrooney、Marisa C. Kozlowski
DOI:10.1021/ol062468y
日期:2007.2.1
[reaction: see text] An enantioselectivesynthesis of the chiral bisnaphthopyrone natural product nigerone is reported. The key step was an eight-step isomerization process to form the final natural product. The isomerization precursor was constructed via asymmetricoxidativebiarylcoupling of an advanced intermediate with a 1,5-diaza-cis-decalin copper catalyst.
Process for the manufacture of hypoxyxylerone derivatives
申请人:Aventis Pharma S.A.
公开号:EP1300403A1
公开(公告)日:2003-04-09
The present invention relates to the total synthesis of hypoxyxylerone derivatives (formula I) and their biological activities.
R1-R5 are as described in the description.
Synthetic Approach to Hypoxyxylerone, Novel Inhibitor of Topoisomerase I
作者:Arnaud Piettre、Emmanuel Chevenier、Christine Massardier、Yves Gimbert、Andrew E. Greene
DOI:10.1021/ol026454d
日期:2002.9.1
[GRAPHICS]A potential route to the topoisomerase I inhibitor hypoxyxylerone is demonstrated by a highly convergent synthesis of the penta(O-methyl) derivative. The key step in the approach is an anionic homo-Fries rearrangement, little used to date in natural product synthesis and employed here for the first time with a dinaphthalenic substrate, to access the pentacyclic system of hypoxyxylerone.