Showing structure for 2-[(1-{10-acetyl-5,11,13-trihydroxy-2,12-dimethyl-3-oxo-8-oxatricyclo[7.4.0.0²,⁷]trideca-1(9),4,6,10,12-pentaen-4-yl}ethylidene)amino]pentanedioic acid