(2<i>S</i>,4a<i>R</i>,6a<i>R</i>,7<i>R</i>,9<i>S</i>,10a<i>S</i>,10b<i>R</i>)-7-Carboxy-2-(3-furyl)-6a,10b-dimethyl-4,10-dioxoperhydrobenzo[<i>f</i>]isochromen-9-yl acetate
Acta crystallographica. Section E