methyl 2-[4-[4,6-bis[4-(1-methoxy-1-oxopropan-2-yl)oxy-6-oxocyclohexa-2,4-dien-1-ylidene]-1,3,5-triazinan-2-ylidene]-3-oxocyclohexa-1,5-dien-1-yl]oxypropanoate;methyl 2-[4-[4,6-bis[4-(1-methoxy-1-oxopropan-2-yl)oxy-6-oxocyclohexa-2,4-dien-1-ylidene]-1H-1,3,5-triazin-2-yl]-3-(1-methoxy-1-oxopropan-2-yl)oxyphenoxy]propanoate;methyl 2-[4-[4-(2-hydroxy-4-oxocyclohexa-2,5-dien-1-ylidene)-6-[4-(1-methoxy-1-oxopropan-2-yl)oxy-6-oxocyclohexa-2,4-dien-1-ylidene]-1,3,5-triazinan-2-ylidene]-3-oxocyclohexa-1,5-dien-1-yl]oxypropanoate