Showing structure for (5r,6s,7r,13s,14s,15r)-5,6-bis(acetyloxy)-10,18,19-trimethoxy-7,15-bis(4-methoxyphenyl)-8,12,16-trioxapentacyclo[11.7.1.0²,¹¹.0⁴,⁹.0¹⁷,²¹]henicosa-1(21),2(11),3,9,17,19-hexaen-14-yl acetate