Rel-(6aR, 6bS, 12bS,12cR)-2,11-Dimethyl-6a,6b,12b,12c-tetrahydro- 5,8-dioxa-dibenzo[a,i]biphenylene-6,7-dione

C₂₀H₁₆O₄

Xiuling YuDieter SchellerOtto RademacherThomas Wolff

Journal of Organic Chemistry (2003) 68, 7386-7399

a=22.019(2)Å   b=7.1094(10)Å   c=19.993(2)Å

α=90.00°   β=97.55°   γ=90.00°