Showing structure for (1s,9s,17r)-4,5,9-trihydroxy-17-methoxy-15-[(1r,9s,17r)-4,5,9-trihydroxy-14-oxo-11-oxatetracyclo[7.7.1.0¹,¹².0²,⁷]heptadeca-2,4,6,12,15-pentaen-17-yl]-11-oxatetracyclo[7.7.1.0¹,¹².0²,⁷]heptadeca-2,4,6,12,15-pentaen-14-one