Showing structure for {[(4z,6e,8s,9s,10e,12s,13r,14s,16s,17r)-3-hydroxy-8,13,14,17-tetramethoxy-4,10,12,16-tetramethyl-20,22-dioxo-2-azabicyclo[16.3.1]docosa-1(21),2,4,6,10,18-hexaen-9-yl]oxy}methanimidic acid