Showing structure for n-[(1e,3e,5r)-5-[(2r,4e,6e,10s,11s,12e,14s,18e)-11,14-dihydroxy-10-(c-hydroxycarbonimidoyloxy)-4-methyl-20-oxo-1-oxacycloicosa-4,6,12,18-tetraen-2-yl]-3-methylhexa-1,3-dien-1-yl]-3-methylbut-2-enimidic acid