Showing structure for (21r)-18-hydroxy-21-methyl-21-[(1e)-4-methylpenta-1,3-dien-1-yl]-12,20-dioxahexacyclo[11.11.1.0²,¹¹.0⁴,⁹.0¹⁷,²⁵.0¹⁹,²⁴]pentacosa-1(24),2(11),4,6,8,13(25),14,16,18,22-decaene-3,10-dione