Showing structure for 15-(2-hydroxy-2-methylpropyl)-6,7,20,21-tetramethoxy-4,13,13,18-tetramethyl-12,26-dioxa-4,18-diazahexacyclo[12.12.0.0²,¹¹.0⁵,¹⁰.0¹⁶,²⁵.0¹⁹,²⁴]hexacosa-2(11),5,7,9,16(25),19,21,23-octaene-3,17-dione