Showing structure for (7r,9s,20r,21r,23s,25r)-5,12,20-trihydroxy-29-methoxy-7,9,21,23-tetramethyl-8,16,22-trioxaheptacyclo[15.12.0.0²,¹⁵.0⁴,¹³.0⁶,¹¹.0¹⁸,²⁷.0²⁰,²⁵]nonacosa-1(29),2(15),4,6(11),12,17,27-heptaene-3,14,19,26-tetrone