Showing structure for (2r,3s,10s,17s)-2,17-bis(4-hydroxyphenyl)pentacyclo[8.7.0.0¹,³.0⁴,⁹.0¹¹,¹⁶]heptadeca-4,6,8,11,13,15-hexaene-6,8,13,15-tetrol