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    首页 分子通 按分子结构分类 有机化合物 有机杂环化合物 苯并恶嗪类

    苯并恶嗪类

    中文名称 英文名称 CAS号 化学式 结构式图片
    —— 6-[(5R,10bS)-5-(3-fluorophenyl)-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]cyclohexa-2,4-dien-1-one —— C22H17FN2O2
    6-[(5R,10bS)-5-(3-fluorophenyl)-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]cyclohexa-2,4-dien-1-one
    —— 6-[(5S,10bS)-5-(2,4-dimethoxyphenyl)-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]-4-methylcyclohexa-2,4-dien-1-one —— C25H24N2O4
    6-[(5S,10bS)-5-(2,4-dimethoxyphenyl)-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]-4-methylcyclohexa-2,4-dien-1-one
    —— 6-[(5R,10bR)-5-(2,3-dimethoxyphenyl)-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]-4-chlorocyclohexa-2,4-dien-1-one —— C24H21ClN2O4
    6-[(5R,10bR)-5-(2,3-dimethoxyphenyl)-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]-4-chlorocyclohexa-2,4-dien-1-one
    —— 6-[(5R,10bR)-7-methoxy-5-(3,4,5-trimethoxyphenyl)-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]cyclohexa-2,4-dien-1-one —— C26H26N2O6
    6-[(5R,10bR)-7-methoxy-5-(3,4,5-trimethoxyphenyl)-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]cyclohexa-2,4-dien-1-one
    —— (5S,10bR)-5-(4-ethylphenyl)-2-(4-methoxyphenyl)-5,10b-dihydro-1H-pyrazolo[1,5-c][1,3]benzoxazine —— C25H24N2O2
    (5S,10bR)-5-(4-ethylphenyl)-2-(4-methoxyphenyl)-5,10b-dihydro-1H-pyrazolo[1,5-c][1,3]benzoxazine
    —— 6-[(5R,10bS)-9-bromo-5-thiophen-3-yl-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]-4-methylcyclohexa-2,4-dien-1-one —— C21H17BrN2O2S
    6-[(5R,10bS)-9-bromo-5-thiophen-3-yl-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]-4-methylcyclohexa-2,4-dien-1-one
    —— 6-[(5R,10bS)-5-(4-ethoxy-3-methoxyphenyl)-7-methoxy-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]cyclohexa-2,4-dien-1-one —— C26H26N2O5
    6-[(5R,10bS)-5-(4-ethoxy-3-methoxyphenyl)-7-methoxy-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]cyclohexa-2,4-dien-1-one
    —— 6-[(5S,10bR)-9-chloro-5-(2-methylsulfanylethyl)-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]-4-methylcyclohexa-2,4-dien-1-one —— C20H21ClN2O2S
    6-[(5S,10bR)-9-chloro-5-(2-methylsulfanylethyl)-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]-4-methylcyclohexa-2,4-dien-1-one
    —— (5R,10bR)-5-(4-ethylphenyl)-2-(4-methoxyphenyl)-5,10b-dihydro-1H-pyrazolo[1,5-c][1,3]benzoxazine —— C25H24N2O2
    (5R,10bR)-5-(4-ethylphenyl)-2-(4-methoxyphenyl)-5,10b-dihydro-1H-pyrazolo[1,5-c][1,3]benzoxazine
    —— methyl 4-[(5S,10bR)-2-(3-methyl-6-oxocyclohexa-2,4-dien-1-ylidene)-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-5-yl]benzoate —— C25H22N2O4
    methyl 4-[(5S,10bR)-2-(3-methyl-6-oxocyclohexa-2,4-dien-1-ylidene)-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-5-yl]benzoate
    —— 6-[(5R,10bR)-9-chloro-5-(3-hydroxy-4-methoxyphenyl)-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]cyclohexa-2,4-dien-1-one —— C23H19ClN2O4
    6-[(5R,10bR)-9-chloro-5-(3-hydroxy-4-methoxyphenyl)-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]cyclohexa-2,4-dien-1-one
    —— 6-[(5S,10bS)-5-(4-hydroxy-3-methoxyphenyl)-7-methoxy-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]cyclohexa-2,4-dien-1-one —— C24H22N2O5
    6-[(5S,10bS)-5-(4-hydroxy-3-methoxyphenyl)-7-methoxy-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]cyclohexa-2,4-dien-1-one
    —— 6-[(5S,10bR)-5-(2,4-dimethoxyphenyl)-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]cyclohexa-2,4-dien-1-one —— C24H22N2O4
    6-[(5S,10bR)-5-(2,4-dimethoxyphenyl)-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]cyclohexa-2,4-dien-1-one
    —— 6-[(5R,10bS)-5-(2,4-dimethoxyphenyl)-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]-4-methoxycyclohexa-2,4-dien-1-one —— C25H24N2O5
    6-[(5R,10bS)-5-(2,4-dimethoxyphenyl)-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]-4-methoxycyclohexa-2,4-dien-1-one
    —— 6-[(5R,10bR)-9-bromo-5-thiophen-3-yl-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]-4-methylcyclohexa-2,4-dien-1-one —— C21H17BrN2O2S
    6-[(5R,10bR)-9-bromo-5-thiophen-3-yl-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]-4-methylcyclohexa-2,4-dien-1-one
    —— 6-[(5S,10bR)-5-(3,4-dimethoxyphenyl)-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]-4-chlorocyclohexa-2,4-dien-1-one —— C24H21ClN2O4
    6-[(5S,10bR)-5-(3,4-dimethoxyphenyl)-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]-4-chlorocyclohexa-2,4-dien-1-one
    —— 6-[(5S,10bS)-5-(2,5-dimethoxyphenyl)-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]-4-methylcyclohexa-2,4-dien-1-one —— C25H24N2O4
    6-[(5S,10bS)-5-(2,5-dimethoxyphenyl)-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]-4-methylcyclohexa-2,4-dien-1-one
    —— 6-[(5R,10bR)-5-(2-methylsulfanylethyl)-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]cyclohexa-2,4-dien-1-one —— C19H20N2O2S
    6-[(5R,10bR)-5-(2-methylsulfanylethyl)-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]cyclohexa-2,4-dien-1-one
    —— 6-[(5R,10bR)-7-methoxy-5-(4-methoxyphenyl)-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]cyclohexa-2,4-dien-1-one —— C24H22N2O4
    6-[(5R,10bR)-7-methoxy-5-(4-methoxyphenyl)-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]cyclohexa-2,4-dien-1-one
    —— 6-[(5S,10bS)-9-chloro-5-(2,3-dimethoxyphenyl)-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]cyclohexa-2,4-dien-1-one —— C24H21ClN2O4
    6-[(5S,10bS)-9-chloro-5-(2,3-dimethoxyphenyl)-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]cyclohexa-2,4-dien-1-one
    —— 6-[(5R,10bR)-5-(4-ethoxyphenyl)-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]cyclohexa-2,4-dien-1-one —— C24H22N2O3
    6-[(5R,10bR)-5-(4-ethoxyphenyl)-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]cyclohexa-2,4-dien-1-one
    —— 6-[(5S,10bR)-5-(2,3-dimethoxyphenyl)-7-methoxy-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]cyclohexa-2,4-dien-1-one —— C25H24N2O5
    6-[(5S,10bR)-5-(2,3-dimethoxyphenyl)-7-methoxy-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]cyclohexa-2,4-dien-1-one
    —— 6-[(5S,10bR)-5-(4-ethoxyphenyl)-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]cyclohexa-2,4-dien-1-one —— C24H22N2O3
    6-[(5S,10bR)-5-(4-ethoxyphenyl)-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]cyclohexa-2,4-dien-1-one
    —— 6-[(5R,10bR)-5-(3,4-dimethoxyphenyl)-7-methoxy-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]-4-methylcyclohexa-2,4-dien-1-one —— C26H26N2O5
    6-[(5R,10bR)-5-(3,4-dimethoxyphenyl)-7-methoxy-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]-4-methylcyclohexa-2,4-dien-1-one
    —— 6-[(5S,10bS)-5-(2,4-dimethoxyphenyl)-7-methoxy-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]cyclohexa-2,4-dien-1-one —— C25H24N2O5
    6-[(5S,10bS)-5-(2,4-dimethoxyphenyl)-7-methoxy-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]cyclohexa-2,4-dien-1-one
    —— 6-[(5S,10bR)-9-chloro-5-(3,4,5-trimethoxyphenyl)-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]cyclohexa-2,4-dien-1-one —— C25H23ClN2O5
    6-[(5S,10bR)-9-chloro-5-(3,4,5-trimethoxyphenyl)-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]cyclohexa-2,4-dien-1-one
    —— 6-[(5S,10bR)-5-(2-methylphenyl)-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]cyclohexa-2,4-dien-1-one —— C23H20N2O2
    6-[(5S,10bR)-5-(2-methylphenyl)-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]cyclohexa-2,4-dien-1-one
    —— (5R,10bR)-5-(4-ethylphenyl)-2-(4-methylphenyl)-5,10b-dihydro-1H-pyrazolo[1,5-c][1,3]benzoxazine —— C25H24N2O
    (5R,10bR)-5-(4-ethylphenyl)-2-(4-methylphenyl)-5,10b-dihydro-1H-pyrazolo[1,5-c][1,3]benzoxazine
    —— 6-[(5R,10bR)-5-(3-methylphenyl)-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]cyclohexa-2,4-dien-1-one —— C23H20N2O2
    6-[(5R,10bR)-5-(3-methylphenyl)-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]cyclohexa-2,4-dien-1-one
    —— 6-[(5R,10bR)-9-chloro-5-(3,4-dimethoxyphenyl)-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]cyclohexa-2,4-dien-1-one —— C24H21ClN2O4
    6-[(5R,10bR)-9-chloro-5-(3,4-dimethoxyphenyl)-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]cyclohexa-2,4-dien-1-one
    —— 6-[(5R,10bS)-5-(3,4,5-trimethoxyphenyl)-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]cyclohexa-2,4-dien-1-one —— C25H24N2O5
    6-[(5R,10bS)-5-(3,4,5-trimethoxyphenyl)-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]cyclohexa-2,4-dien-1-one
    —— 6-[(5S,10bS)-5-(4-methoxyphenyl)-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]-4-methylcyclohexa-2,4-dien-1-one —— C24H22N2O3
    6-[(5S,10bS)-5-(4-methoxyphenyl)-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]-4-methylcyclohexa-2,4-dien-1-one
    —— 6-[(5R,10bR)-5-(3-fluorophenyl)-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]cyclohexa-2,4-dien-1-one —— C22H17FN2O2
    6-[(5R,10bR)-5-(3-fluorophenyl)-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]cyclohexa-2,4-dien-1-one
    —— 6-[(5R,10bR)-5-(3-hydroxy-4-methoxyphenyl)-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]cyclohexa-2,4-dien-1-one —— C23H20N2O4
    6-[(5R,10bR)-5-(3-hydroxy-4-methoxyphenyl)-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]cyclohexa-2,4-dien-1-one
    —— (5S,10bR)-5-(2-fluorophenyl)-2-phenyl-5,10b-dihydro-1H-pyrazolo[1,5-c][1,3]benzoxazine —— C22H17FN2O
    (5S,10bR)-5-(2-fluorophenyl)-2-phenyl-5,10b-dihydro-1H-pyrazolo[1,5-c][1,3]benzoxazine
    —— 6-[(5R,10bR)-7-methoxy-5-propan-2-yl-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]cyclohexa-2,4-dien-1-one —— C20H22N2O3
    6-[(5R,10bR)-7-methoxy-5-propan-2-yl-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]cyclohexa-2,4-dien-1-one
    —— 6-[(5S,10bS)-5-(2-methylpropyl)-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]-4-methylcyclohexa-2,4-dien-1-one —— C21H24N2O2
    6-[(5S,10bS)-5-(2-methylpropyl)-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]-4-methylcyclohexa-2,4-dien-1-one
    —— 6-[(5S,10bR)-9-chloro-5-(3,4-dimethoxyphenyl)-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]cyclohexa-2,4-dien-1-one —— C24H21ClN2O4
    6-[(5S,10bR)-9-chloro-5-(3,4-dimethoxyphenyl)-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]cyclohexa-2,4-dien-1-one
    —— 6-[(5R,10bR)-5-(3,4-dimethoxyphenyl)-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]cyclohexa-2,4-dien-1-one —— C24H22N2O4
    6-[(5R,10bR)-5-(3,4-dimethoxyphenyl)-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]cyclohexa-2,4-dien-1-one
    —— 6-[(5R,10bS)-7-methoxy-5-(3,4,5-trimethoxyphenyl)-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]-4-methylcyclohexa-2,4-dien-1-one —— C27H28N2O6
    6-[(5R,10bS)-7-methoxy-5-(3,4,5-trimethoxyphenyl)-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]-4-methylcyclohexa-2,4-dien-1-one
    —— 6-[(5R,10bR)-5-(3,4-dimethoxyphenyl)-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]-4-chlorocyclohexa-2,4-dien-1-one —— C24H21ClN2O4
    6-[(5R,10bR)-5-(3,4-dimethoxyphenyl)-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]-4-chlorocyclohexa-2,4-dien-1-one
    —— 6-[(5R,10bR)-5-(4-fluorophenyl)-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]cyclohexa-2,4-dien-1-one —— C22H17FN2O2
    6-[(5R,10bR)-5-(4-fluorophenyl)-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]cyclohexa-2,4-dien-1-one
    —— 6-[(5R,10bR)-5-(3-methoxyphenyl)-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]cyclohexa-2,4-dien-1-one —— C23H20N2O3
    6-[(5R,10bR)-5-(3-methoxyphenyl)-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]cyclohexa-2,4-dien-1-one
    —— methyl 4-[(5R,10bR)-2-(6-oxocyclohexa-2,4-dien-1-ylidene)-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-5-yl]benzoate —— C24H20N2O4
    methyl 4-[(5R,10bR)-2-(6-oxocyclohexa-2,4-dien-1-ylidene)-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-5-yl]benzoate
    —— 6-[(5R,10bR)-7-methoxy-5-(3-methylphenyl)-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]cyclohexa-2,4-dien-1-one —— C24H22N2O3
    6-[(5R,10bR)-7-methoxy-5-(3-methylphenyl)-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]cyclohexa-2,4-dien-1-one
    —— 6-[(5S,10bR)-5-propan-2-yl-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]-4-methylcyclohexa-2,4-dien-1-one —— C20H22N2O2
    6-[(5S,10bR)-5-propan-2-yl-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]-4-methylcyclohexa-2,4-dien-1-one
    —— 6-[(5R,10bS)-9-bromo-5-(2-methylsulfanylethyl)-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]cyclohexa-2,4-dien-1-one —— C19H19BrN2O2S
    6-[(5R,10bS)-9-bromo-5-(2-methylsulfanylethyl)-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]cyclohexa-2,4-dien-1-one
    —— 6-[(5R,10bS)-5-(4-hydroxy-3-methoxyphenyl)-7-methoxy-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]cyclohexa-2,4-dien-1-one —— C24H22N2O5
    6-[(5R,10bS)-5-(4-hydroxy-3-methoxyphenyl)-7-methoxy-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]cyclohexa-2,4-dien-1-one
    —— (5S,10bS)-5-(2-fluorophenyl)-2-phenyl-5,10b-dihydro-1H-pyrazolo[1,5-c][1,3]benzoxazine —— C22H17FN2O
    (5S,10bS)-5-(2-fluorophenyl)-2-phenyl-5,10b-dihydro-1H-pyrazolo[1,5-c][1,3]benzoxazine
    —— 6-[(5R,10bS)-5-(3,4-dimethoxyphenyl)-7-methoxy-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]cyclohexa-2,4-dien-1-one —— C25H24N2O5
    6-[(5R,10bS)-5-(3,4-dimethoxyphenyl)-7-methoxy-1,3,5,10b-tetrahydropyrazolo[1,5-c][1,3]benzoxazin-2-ylidene]cyclohexa-2,4-dien-1-one