Showing structure for (8r,9r)-4,6,12-trimethoxy-8,16-bis(4-methoxyphenyl)-15-oxatetracyclo[8.6.1.0²,⁷.0¹⁴,¹⁷]heptadeca-1(16),2,4,6,10(17),11,13-heptaen-9-ol