Showing structure for (1r,2r,5r,10r,14r,16r,17s,18r,21s)-17,18-dihydroxy-8-isopropyl-2,5-dimethyl-15,20,22-trioxapentacyclo[12.8.0.0²,¹⁰.0⁵,⁹.0¹⁶,²¹]docosa-8,12-diene-13-carbaldehyde