Talk:Ginkgolide

Can someone who is an expert on this subject please verify or correct the structure shown in the image. It appears incorrect to me based on the structure shown in ChemSpider for Ginkgolide B:

http://www.chemspider.com/Chemical-Structure.23089477.html

Note that the Wikipedia structure shows an OH connected to the same carbon bearing the t-butyl group, whereas the ChemSpider structure (and other web sources I have found) do not have an OH connected to this carbon. — Preceding unsigned comment added by Petenweller (talk • contribs) 03:00, 27 July 2012 (UTC)