Showing structure for 2-[(4-ethenyl-7,8-dihydroxy-13-oxo-4,4a,5,5a,10,11-hexahydro-3h-2-oxa-12-azatetraphen-3-yl)oxy]-4,5-dihydroxy-6-(hydroxymethyl)oxan-3-yl 3-(4-hydroxy-3-methoxyphenyl)prop-2-enoate