Showing structure for {[(4e,6s,8s,9s,10e,12s,13r,14s,16r)-3,6,13-trihydroxy-8,14,19-trimethoxy-4,10,12,16-tetramethyl-20,22-dioxo-2-azabicyclo[16.3.1]docosa-1(21),2,4,10,18-pentaen-9-yl]oxy}methanimidic acid