Showing structure for 2-hydroxy-7-(1-hydroxyethylidene)-10,15,15-trimethyl-16-oxa-10-azatetracyclo[9.8.0.0³,⁹.0¹²,¹⁷]nonadeca-1,3(9),4,11,13,17-hexaene-6,8,19-trione