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苯并吡喃

中文名称 英文名称 CAS号 化学式 结构式图片
—— tert-butyl N-[(1S)-2-[(2Z)-2-(6-ethylspiro[3,4-dihydropyrano[3,2-g]chromene-2,1'-cyclohexane]-8-ylidene)hydrazinyl]-2-oxo-1-phenylethyl]carbamate —— C32H39N3O5
tert-butyl N-[(1S)-2-[(2Z)-2-(6-ethylspiro[3,4-dihydropyrano[3,2-g]chromene-2,1'-cyclohexane]-8-ylidene)hydrazinyl]-2-oxo-1-phenylethyl]carbamate
—— (1R,9R,12S)-10-[2-(3,4-diethoxyphenyl)ethyl]-9-methyl-11-oxo-8-oxa-10-azatricyclo[7.3.1.02,7]trideca-2,4,6-triene-12-carboxylic acid —— C25H29NO6
(1R,9R,12S)-10-[2-(3,4-diethoxyphenyl)ethyl]-9-methyl-11-oxo-8-oxa-10-azatricyclo[7.3.1.02,7]trideca-2,4,6-triene-12-carboxylic acid
—— (1R)-1-(4-chlorophenyl)-2-[5-(naphthalen-1-ylmethylsulfanyl)-1,3,4-thiadiazol-2-yl]-1H-chromeno[2,3-c]pyrrole-3,9-dione —— C30H18ClN3O3S2
(1R)-1-(4-chlorophenyl)-2-[5-(naphthalen-1-ylmethylsulfanyl)-1,3,4-thiadiazol-2-yl]-1H-chromeno[2,3-c]pyrrole-3,9-dione
—— (1R)-1-(4-bromophenyl)-7-chloro-2-[5-[(4-methylphenyl)methylsulfanyl]-1,3,4-thiadiazol-2-yl]-1H-chromeno[2,3-c]pyrrole-3,9-dione —— C27H17BrClN3O3S2
(1R)-1-(4-bromophenyl)-7-chloro-2-[5-[(4-methylphenyl)methylsulfanyl]-1,3,4-thiadiazol-2-yl]-1H-chromeno[2,3-c]pyrrole-3,9-dione
—— (1S)-1-(4-bromophenyl)-7-chloro-2-[5-[(4-methylphenyl)methylsulfanyl]-1,3,4-thiadiazol-2-yl]-1H-chromeno[2,3-c]pyrrole-3,9-dione —— C27H17BrClN3O3S2
(1S)-1-(4-bromophenyl)-7-chloro-2-[5-[(4-methylphenyl)methylsulfanyl]-1,3,4-thiadiazol-2-yl]-1H-chromeno[2,3-c]pyrrole-3,9-dione
—— (1S)-1-(4-chlorophenyl)-2-[5-(naphthalen-1-ylmethylsulfanyl)-1,3,4-thiadiazol-2-yl]-1H-chromeno[2,3-c]pyrrole-3,9-dione —— C30H18ClN3O3S2
(1S)-1-(4-chlorophenyl)-2-[5-(naphthalen-1-ylmethylsulfanyl)-1,3,4-thiadiazol-2-yl]-1H-chromeno[2,3-c]pyrrole-3,9-dione
—— (1R)-1-(4-bromophenyl)-2-[5-[(4-methylphenyl)methylsulfanyl]-1,3,4-thiadiazol-2-yl]-1H-chromeno[2,3-c]pyrrole-3,9-dione —— C27H18BrN3O3S2
(1R)-1-(4-bromophenyl)-2-[5-[(4-methylphenyl)methylsulfanyl]-1,3,4-thiadiazol-2-yl]-1H-chromeno[2,3-c]pyrrole-3,9-dione
—— ethyl (1R,9S,13S)-10-(3-methoxypropyl)-9-methyl-4-nitro-11-sulfanylidene-8-oxa-10,12-diazatricyclo[7.3.1.02,7]trideca-2(7),3,5-triene-13-carboxylate —— C18H23N3O6S
ethyl (1R,9S,13S)-10-(3-methoxypropyl)-9-methyl-4-nitro-11-sulfanylidene-8-oxa-10,12-diazatricyclo[7.3.1.02,7]trideca-2(7),3,5-triene-13-carboxylate
—— (1R,9S,13R)-9,10,13-trimethyl-8-oxa-10-azatricyclo[7.3.1.02,7]trideca-2,4,6-trien-11-one —— C14H17NO2
(1R,9S,13R)-9,10,13-trimethyl-8-oxa-10-azatricyclo[7.3.1.02,7]trideca-2,4,6-trien-11-one
—— 4-[(2Z)-2-(2,4-dioxochromen-3-ylidene)hydrazinyl]-N,N-diethylbenzenesulfonamide —— C19H19N3O5S
4-[(2Z)-2-(2,4-dioxochromen-3-ylidene)hydrazinyl]-N,N-diethylbenzenesulfonamide
—— 3-{N'-[(E)-(6-Fluoro-4-oxo-4H-chromen-3-YL)methylidene]hydrazinecarbonyl}-N-(4-methylphenyl)propanamide —— C21H18FN3O4
3-{N'-[(E)-(6-Fluoro-4-oxo-4H-chromen-3-YL)methylidene]hydrazinecarbonyl}-N-(4-methylphenyl)propanamide
—— (2R)-1'-[(Z)-3-thiophen-2-ylprop-2-enoyl]spiro[3H-chromene-2,3'-pyrrolidine]-4-one —— C19H17NO3S
(2R)-1'-[(Z)-3-thiophen-2-ylprop-2-enoyl]spiro[3H-chromene-2,3'-pyrrolidine]-4-one
—— (2S)-1'-[(Z)-2-(4-methylphenyl)ethenyl]sulfonylspiro[3H-chromene-2,3'-pyrrolidine]-4-one —— C21H21NO4S
(2S)-1'-[(Z)-2-(4-methylphenyl)ethenyl]sulfonylspiro[3H-chromene-2,3'-pyrrolidine]-4-one
—— (2R)-1'-[(Z)-3-(furan-2-yl)prop-2-enoyl]spiro[3H-chromene-2,3'-pyrrolidine]-4-one —— C19H17NO4
(2R)-1'-[(Z)-3-(furan-2-yl)prop-2-enoyl]spiro[3H-chromene-2,3'-pyrrolidine]-4-one
—— (3S)-6-bromo-4-oxo-2,3-dihydrochromene-3-carboxylic acid —— C10H7BrO4
(3S)-6-bromo-4-oxo-2,3-dihydrochromene-3-carboxylic acid
—— 2-[(5-methyl-4-phenyl-1,2,4-triazol-3-yl)sulfanyl]-N-[(E)-(4-oxochromen-3-yl)methylideneamino]acetamide —— C21H17N5O3S
2-[(5-methyl-4-phenyl-1,2,4-triazol-3-yl)sulfanyl]-N-[(E)-(4-oxochromen-3-yl)methylideneamino]acetamide
—— (2S)-1'-[(Z)-3-thiophen-2-ylprop-2-enoyl]spiro[3H-chromene-2,3'-pyrrolidine]-4-one —— C19H17NO3S
(2S)-1'-[(Z)-3-thiophen-2-ylprop-2-enoyl]spiro[3H-chromene-2,3'-pyrrolidine]-4-one
—— (2S)-1'-[(Z)-3-(furan-2-yl)prop-2-enoyl]spiro[3H-chromene-2,3'-pyrrolidine]-4-one —— C19H17NO4
(2S)-1'-[(Z)-3-(furan-2-yl)prop-2-enoyl]spiro[3H-chromene-2,3'-pyrrolidine]-4-one
—— (3R)-6-bromo-4-oxo-2,3-dihydrochromene-3-carboxylic acid —— C10H7BrO4
(3R)-6-bromo-4-oxo-2,3-dihydrochromene-3-carboxylic acid
—— (3E)-3-[(morpholin-4-ylamino)methylidene]chromene-2,4-dione —— C14H14N2O4
(3E)-3-[(morpholin-4-ylamino)methylidene]chromene-2,4-dione
—— (1R,9S,12Z)-12-[(E)-1-hydroxy-3-(2,3,4-trimethoxyphenyl)prop-2-enylidene]-6-methoxy-9-methyl-8-oxa-10-azatricyclo[7.3.1.02,7]trideca-2(7),3,5-trien-11-one —— C25H27NO7
(1R,9S,12Z)-12-[(E)-1-hydroxy-3-(2,3,4-trimethoxyphenyl)prop-2-enylidene]-6-methoxy-9-methyl-8-oxa-10-azatricyclo[7.3.1.02,7]trideca-2(7),3,5-trien-11-one
—— (1S,9S,10R,16Z)-16-[(E)-1-hydroxy-3-(2,3,4-trimethoxyphenyl)prop-2-enylidene]-4-methoxy-14-methyl-2-oxa-14-azatetracyclo[7.4.3.01,10.03,8]hexadeca-3(8),4,6-trien-15-one —— C28H31NO7
(1S,9S,10R,16Z)-16-[(E)-1-hydroxy-3-(2,3,4-trimethoxyphenyl)prop-2-enylidene]-4-methoxy-14-methyl-2-oxa-14-azatetracyclo[7.4.3.01,10.03,8]hexadeca-3(8),4,6-trien-15-one
—— (1R,9S,10R,17Z)-17-[(E)-1-hydroxy-3-(2,3,4-trimethoxyphenyl)prop-2-enylidene]-2-oxa-15-azatetracyclo[7.5.3.01,10.03,8]heptadeca-3,5,7-trien-16-one —— C27H29NO6
(1R,9S,10R,17Z)-17-[(E)-1-hydroxy-3-(2,3,4-trimethoxyphenyl)prop-2-enylidene]-2-oxa-15-azatetracyclo[7.5.3.01,10.03,8]heptadeca-3,5,7-trien-16-one
—— (1S,9S,10R,17Z)-17-[(E)-1-hydroxy-3-(2,3,4-trimethoxyphenyl)prop-2-enylidene]-2-oxa-15-azatetracyclo[7.5.3.01,10.03,8]heptadeca-3,5,7-trien-16-one —— C27H29NO6
(1S,9S,10R,17Z)-17-[(E)-1-hydroxy-3-(2,3,4-trimethoxyphenyl)prop-2-enylidene]-2-oxa-15-azatetracyclo[7.5.3.01,10.03,8]heptadeca-3,5,7-trien-16-one
—— (1R,9S,12Z)-12-[(E)-1-hydroxy-3-(4-methoxyphenyl)prop-2-enylidene]-9-methyl-8-oxa-10-azatricyclo[7.3.1.02,7]trideca-2,4,6-trien-11-one —— C22H21NO4
(1R,9S,12Z)-12-[(E)-1-hydroxy-3-(4-methoxyphenyl)prop-2-enylidene]-9-methyl-8-oxa-10-azatricyclo[7.3.1.02,7]trideca-2,4,6-trien-11-one
—— (1R,9R,10R,16Z)-16-[(E)-1-hydroxy-3-(2,3,4-trimethoxyphenyl)prop-2-enylidene]-2-oxa-14-azatetracyclo[7.4.3.01,10.03,8]hexadeca-3,5,7-trien-15-one —— C26H27NO6
(1R,9R,10R,16Z)-16-[(E)-1-hydroxy-3-(2,3,4-trimethoxyphenyl)prop-2-enylidene]-2-oxa-14-azatetracyclo[7.4.3.01,10.03,8]hexadeca-3,5,7-trien-15-one
—— (1R,9R,10R,16Z)-16-[(E)-1-hydroxy-3-(2,3,4-trimethoxyphenyl)prop-2-enylidene]-4-methoxy-14-methyl-2-oxa-14-azatetracyclo[7.4.3.01,10.03,8]hexadeca-3(8),4,6-trien-15-one —— C28H31NO7
(1R,9R,10R,16Z)-16-[(E)-1-hydroxy-3-(2,3,4-trimethoxyphenyl)prop-2-enylidene]-4-methoxy-14-methyl-2-oxa-14-azatetracyclo[7.4.3.01,10.03,8]hexadeca-3(8),4,6-trien-15-one
—— tert-butyl (3-{(2E)-2-[(6,8-dichloro-4-oxo-4H-chromen-3-yl)methylidene]hydrazinyl}-3-oxopropyl)carbamate (non-preferred name) —— C18H19Cl2N3O5
tert-butyl (3-{(2E)-2-[(6,8-dichloro-4-oxo-4H-chromen-3-yl)methylidene]hydrazinyl}-3-oxopropyl)carbamate (non-preferred name)
—— (1S,9R,12Z)-12-[(E)-3-(4-chlorophenyl)-1-hydroxyprop-2-enylidene]-9-methyl-8-oxa-10-azatricyclo[7.3.1.02,7]trideca-2,4,6-trien-11-one —— C21H18ClNO3
(1S,9R,12Z)-12-[(E)-3-(4-chlorophenyl)-1-hydroxyprop-2-enylidene]-9-methyl-8-oxa-10-azatricyclo[7.3.1.02,7]trideca-2,4,6-trien-11-one
—— (1R,9S,12Z)-12-[(E)-3-[4-(dimethylamino)phenyl]-1-hydroxyprop-2-enylidene]-9-methyl-8-oxa-10-azatricyclo[7.3.1.02,7]trideca-2,4,6-trien-11-one —— C23H24N2O3
(1R,9S,12Z)-12-[(E)-3-[4-(dimethylamino)phenyl]-1-hydroxyprop-2-enylidene]-9-methyl-8-oxa-10-azatricyclo[7.3.1.02,7]trideca-2,4,6-trien-11-one
—— (1S,9S,10R,17Z)-17-[(E)-1-hydroxy-3-(2,3,4-trimethoxyphenyl)prop-2-enylidene]-4-methoxy-15-methyl-2-oxa-15-azatetracyclo[7.5.3.01,10.03,8]heptadeca-3(8),4,6-trien-16-one —— C29H33NO7
(1S,9S,10R,17Z)-17-[(E)-1-hydroxy-3-(2,3,4-trimethoxyphenyl)prop-2-enylidene]-4-methoxy-15-methyl-2-oxa-15-azatetracyclo[7.5.3.01,10.03,8]heptadeca-3(8),4,6-trien-16-one
—— (1S,9S,10R,16Z)-16-[(E)-1-hydroxy-3-(2,3,4-trimethoxyphenyl)prop-2-enylidene]-2-oxa-14-azatetracyclo[7.4.3.01,10.03,8]hexadeca-3,5,7-trien-15-one —— C26H27NO6
(1S,9S,10R,16Z)-16-[(E)-1-hydroxy-3-(2,3,4-trimethoxyphenyl)prop-2-enylidene]-2-oxa-14-azatetracyclo[7.4.3.01,10.03,8]hexadeca-3,5,7-trien-15-one
—— (1R,9S,12Z)-12-[(E)-3-(4-ethoxy-3-methoxyphenyl)-1-hydroxyprop-2-enylidene]-9,10-dimethyl-8-oxa-10-azatricyclo[7.3.1.02,7]trideca-2,4,6-trien-11-one —— C25H27NO5
(1R,9S,12Z)-12-[(E)-3-(4-ethoxy-3-methoxyphenyl)-1-hydroxyprop-2-enylidene]-9,10-dimethyl-8-oxa-10-azatricyclo[7.3.1.02,7]trideca-2,4,6-trien-11-one
—— (1R,9R,12Z)-12-[(E)-3-(4-ethoxy-3-methoxyphenyl)-1-hydroxyprop-2-enylidene]-9,10-dimethyl-8-oxa-10-azatricyclo[7.3.1.02,7]trideca-2,4,6-trien-11-one —— C25H27NO5
(1R,9R,12Z)-12-[(E)-3-(4-ethoxy-3-methoxyphenyl)-1-hydroxyprop-2-enylidene]-9,10-dimethyl-8-oxa-10-azatricyclo[7.3.1.02,7]trideca-2,4,6-trien-11-one
—— (1R,9S,10R,17Z)-17-[(E)-1-hydroxy-3-(2,3,4-trimethoxyphenyl)prop-2-enylidene]-4-methoxy-2-oxa-15-azatetracyclo[7.5.3.01,10.03,8]heptadeca-3(8),4,6-trien-16-one —— C28H31NO7
(1R,9S,10R,17Z)-17-[(E)-1-hydroxy-3-(2,3,4-trimethoxyphenyl)prop-2-enylidene]-4-methoxy-2-oxa-15-azatetracyclo[7.5.3.01,10.03,8]heptadeca-3(8),4,6-trien-16-one
—— (1S,9R,12Z)-12-[(E)-3-(4-ethoxy-3-methoxyphenyl)-1-hydroxyprop-2-enylidene]-9,10-dimethyl-8-oxa-10-azatricyclo[7.3.1.02,7]trideca-2,4,6-trien-11-one —— C25H27NO5
(1S,9R,12Z)-12-[(E)-3-(4-ethoxy-3-methoxyphenyl)-1-hydroxyprop-2-enylidene]-9,10-dimethyl-8-oxa-10-azatricyclo[7.3.1.02,7]trideca-2,4,6-trien-11-one
—— (1S,9S,12Z)-12-[(E)-3-(4-ethoxy-3-methoxyphenyl)-1-hydroxyprop-2-enylidene]-9,10-dimethyl-8-oxa-10-azatricyclo[7.3.1.02,7]trideca-2,4,6-trien-11-one —— C25H27NO5
(1S,9S,12Z)-12-[(E)-3-(4-ethoxy-3-methoxyphenyl)-1-hydroxyprop-2-enylidene]-9,10-dimethyl-8-oxa-10-azatricyclo[7.3.1.02,7]trideca-2,4,6-trien-11-one
—— (1R,9S,12Z)-12-[(E)-3-(4-ethoxy-3-methoxyphenyl)-1-hydroxyprop-2-enylidene]-9-methyl-8-oxa-10-azatricyclo[7.3.1.02,7]trideca-2,4,6-trien-11-one —— C24H25NO5
(1R,9S,12Z)-12-[(E)-3-(4-ethoxy-3-methoxyphenyl)-1-hydroxyprop-2-enylidene]-9-methyl-8-oxa-10-azatricyclo[7.3.1.02,7]trideca-2,4,6-trien-11-one
—— (1S,9R,10R,16Z)-16-[(E)-1-hydroxy-3-(2,3,4-trimethoxyphenyl)prop-2-enylidene]-4-methoxy-14-methyl-2-oxa-14-azatetracyclo[7.4.3.01,10.03,8]hexadeca-3(8),4,6-trien-15-one —— C28H31NO7
(1S,9R,10R,16Z)-16-[(E)-1-hydroxy-3-(2,3,4-trimethoxyphenyl)prop-2-enylidene]-4-methoxy-14-methyl-2-oxa-14-azatetracyclo[7.4.3.01,10.03,8]hexadeca-3(8),4,6-trien-15-one
—— (1S,9R,12Z)-12-[(E)-3-[4-(dimethylamino)phenyl]-1-hydroxyprop-2-enylidene]-9-methyl-8-oxa-10-azatricyclo[7.3.1.02,7]trideca-2,4,6-trien-11-one —— C23H24N2O3
(1S,9R,12Z)-12-[(E)-3-[4-(dimethylamino)phenyl]-1-hydroxyprop-2-enylidene]-9-methyl-8-oxa-10-azatricyclo[7.3.1.02,7]trideca-2,4,6-trien-11-one
—— (1R,9S,10R,17Z)-17-[(E)-1-hydroxy-3-(2,3,4-trimethoxyphenyl)prop-2-enylidene]-4-methoxy-15-methyl-2-oxa-15-azatetracyclo[7.5.3.01,10.03,8]heptadeca-3(8),4,6-trien-16-one —— C29H33NO7
(1R,9S,10R,17Z)-17-[(E)-1-hydroxy-3-(2,3,4-trimethoxyphenyl)prop-2-enylidene]-4-methoxy-15-methyl-2-oxa-15-azatetracyclo[7.5.3.01,10.03,8]heptadeca-3(8),4,6-trien-16-one
—— (1S,9R,12Z)-12-[(E)-1-hydroxy-3-phenylprop-2-enylidene]-9-methyl-8-oxa-10-azatricyclo[7.3.1.02,7]trideca-2,4,6-trien-11-one —— C21H19NO3
(1S,9R,12Z)-12-[(E)-1-hydroxy-3-phenylprop-2-enylidene]-9-methyl-8-oxa-10-azatricyclo[7.3.1.02,7]trideca-2,4,6-trien-11-one
—— (1R,9S,12Z)-12-[(E)-3-(4-chlorophenyl)-1-hydroxyprop-2-enylidene]-9-methyl-8-oxa-10-azatricyclo[7.3.1.02,7]trideca-2,4,6-trien-11-one —— C21H18ClNO3
(1R,9S,12Z)-12-[(E)-3-(4-chlorophenyl)-1-hydroxyprop-2-enylidene]-9-methyl-8-oxa-10-azatricyclo[7.3.1.02,7]trideca-2,4,6-trien-11-one
—— (1S,9R,10R,16Z)-16-[(E)-1-hydroxy-3-(2,3,4-trimethoxyphenyl)prop-2-enylidene]-2-oxa-14-azatetracyclo[7.4.3.01,10.03,8]hexadeca-3,5,7-trien-15-one —— C26H27NO6
(1S,9R,10R,16Z)-16-[(E)-1-hydroxy-3-(2,3,4-trimethoxyphenyl)prop-2-enylidene]-2-oxa-14-azatetracyclo[7.4.3.01,10.03,8]hexadeca-3,5,7-trien-15-one
—— (1S,9R,12Z)-12-[(E)-1-hydroxy-3-(2,3,4-trimethoxyphenyl)prop-2-enylidene]-6-methoxy-9-methyl-8-oxa-10-azatricyclo[7.3.1.02,7]trideca-2(7),3,5-trien-11-one —— C25H27NO7
(1S,9R,12Z)-12-[(E)-1-hydroxy-3-(2,3,4-trimethoxyphenyl)prop-2-enylidene]-6-methoxy-9-methyl-8-oxa-10-azatricyclo[7.3.1.02,7]trideca-2(7),3,5-trien-11-one
—— (1R,9S,10R,16Z)-16-[(E)-1-hydroxy-3-(2,3,4-trimethoxyphenyl)prop-2-enylidene]-4-methoxy-14-methyl-2-oxa-14-azatetracyclo[7.4.3.01,10.03,8]hexadeca-3(8),4,6-trien-15-one —— C28H31NO7
(1R,9S,10R,16Z)-16-[(E)-1-hydroxy-3-(2,3,4-trimethoxyphenyl)prop-2-enylidene]-4-methoxy-14-methyl-2-oxa-14-azatetracyclo[7.4.3.01,10.03,8]hexadeca-3(8),4,6-trien-15-one
—— (1R,9R,10R,17Z)-17-[(E)-1-hydroxy-3-(2,3,4-trimethoxyphenyl)prop-2-enylidene]-2-oxa-15-azatetracyclo[7.5.3.01,10.03,8]heptadeca-3,5,7-trien-16-one —— C27H29NO6
(1R,9R,10R,17Z)-17-[(E)-1-hydroxy-3-(2,3,4-trimethoxyphenyl)prop-2-enylidene]-2-oxa-15-azatetracyclo[7.5.3.01,10.03,8]heptadeca-3,5,7-trien-16-one
—— (1S,9R,12Z)-12-[(E)-3-(4-ethoxy-3-methoxyphenyl)-1-hydroxyprop-2-enylidene]-9-methyl-8-oxa-10-azatricyclo[7.3.1.02,7]trideca-2,4,6-trien-11-one —— C24H25NO5
(1S,9R,12Z)-12-[(E)-3-(4-ethoxy-3-methoxyphenyl)-1-hydroxyprop-2-enylidene]-9-methyl-8-oxa-10-azatricyclo[7.3.1.02,7]trideca-2,4,6-trien-11-one
—— (1R,9R,10R,17Z)-17-[(E)-1-hydroxy-3-(2,3,4-trimethoxyphenyl)prop-2-enylidene]-4-methoxy-15-methyl-2-oxa-15-azatetracyclo[7.5.3.01,10.03,8]heptadeca-3(8),4,6-trien-16-one —— C29H33NO7
(1R,9R,10R,17Z)-17-[(E)-1-hydroxy-3-(2,3,4-trimethoxyphenyl)prop-2-enylidene]-4-methoxy-15-methyl-2-oxa-15-azatetracyclo[7.5.3.01,10.03,8]heptadeca-3(8),4,6-trien-16-one
—— (1S,9R,10R,17Z)-17-[(E)-1-hydroxy-3-(2,3,4-trimethoxyphenyl)prop-2-enylidene]-2-oxa-15-azatetracyclo[7.5.3.01,10.03,8]heptadeca-3,5,7-trien-16-one —— C27H29NO6
(1S,9R,10R,17Z)-17-[(E)-1-hydroxy-3-(2,3,4-trimethoxyphenyl)prop-2-enylidene]-2-oxa-15-azatetracyclo[7.5.3.01,10.03,8]heptadeca-3,5,7-trien-16-one