Showing structure for [6-(furan-3-yl)-12,14-dihydroxy-7,9,11,15-tetramethyl-3,17-dioxapentacyclo[9.6.1.0²,⁹.0⁴,⁸.0¹⁵,¹⁸]octadec-7-en-10-yl]acetic acid