Showing structure for (3s,6r,7r)-6,11-dihydroxy-6-(hydroxymethyl)-18-methoxy-4,8,20-trioxapentacyclo[10.8.0.0²,⁹.0³,⁷.0¹⁴,¹⁹]icosa-1,9,11,14,16,18-hexaen-13-one