Showing structure for 8-benzoyl-6-(2-hydroxy-3-methylbut-3-en-1-yl)-3-(2-hydroxypropan-2-yl)-9,9-dimethyl-10-(3-methylbut-2-en-1-yl)-4-oxatricyclo[6.3.1.0¹,⁵]dodec-5-ene-7,12-dione