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