Showing structure for 12-{4,11-dihydroxy-10-oxo-8,16-diazatetracyclo[7.7.1.0²,⁷.0¹³,¹⁷]heptadeca-1(17),2(7),3,5,8,11,13,15-octaen-12-yl}-4,11-dihydroxy-8,16-diazatetracyclo[7.7.1.0²,⁷.0¹³,¹⁷]heptadeca-1(17),2(7),3,5,8,11,13,15-octaen-10-one