Showing structure for 1-(9,21-dihydroxy-9-{[(4-hydroxy-3-methylbut-2-enoyl)oxy]methyl}-23-(1-methoxy-1-oxopropan-2-ylidene)-13,20-dimethyl-4,22-dioxo-3-oxaoctacyclo[14.7.1.0²,⁶.0²,¹⁴.0⁸,¹³.0¹⁰,¹².0¹⁷,¹⁹.0²⁰,²⁴]tetracosa-5,16(24)-dien-5-yl)methyl 4-methyl butanedioate