Showing structure for 3-(3,4-dihydroxyphenyl)-n-[4,7,10-trihydroxy-2,9,13-trimethyl-6-(2-methylpropyl)-14-oxo-1-oxa-5,8,11-triazacyclotetradeca-4,7,10-trien-3-yl]prop-2-enimidic acid