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—— 7-hydroxy-2,8-dimethoxyonychine —— C15H13NO4
7-hydroxy-2,8-dimethoxyonychine
—— 7-(Hydroxymethyl)-4-methoxy-2-[2-[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxypropan-2-yl]-2,3-dihydrofuro[3,2-g]chromen-5-one —— C22H28O11
7-(Hydroxymethyl)-4-methoxy-2-[2-[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxypropan-2-yl]-2,3-dihydrofuro[3,2-g]chromen-5-one
—— 7-(3-Aminopropyl)-37'-hydroxy-45'-methyl-35'-trispiro[4.0.0.47.36.35]heptadecan-13-ylspiro[2-benzofuran-3,17'-39-oxa-5,6-dithia-28,34-diazatridecacyclo[22.20.2.214,43.130,34.01,22.08,13.016,41.018,38.018,41.021,42.023,28.027,32.03,47]nonatetraconta-21(42),23,37,47-tetraene]-1,40'-dione —— C72H93N3O5S2
7-(3-Aminopropyl)-37'-hydroxy-45'-methyl-35'-trispiro[4.0.0.47.36.35]heptadecan-13-ylspiro[2-benzofuran-3,17'-39-oxa-5,6-dithia-28,34-diazatridecacyclo[22.20.2.214,43.130,34.01,22.08,13.016,41.018,38.018,41.021,42.023,28.027,32.03,47]nonatetraconta-21(42),23,37,47-tetraene]-1,40'-dione
—— 7-amino-5-(2-methoxyphenyl)-2-(trifluoromethyl)-1,5-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carbonitrile —— C14H11F3N6O
7-amino-5-(2-methoxyphenyl)-2-(trifluoromethyl)-1,5-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carbonitrile
—— 7,18-Bis(hydroxymethyl)-7,14,18,22-tetramethyl-20-phenylmethoxy-19-(3,4,5-trihydroxyoxan-2-yl)oxyhexacyclo[11.9.3.01,14.04,13.05,10.017,22]pentacos-3-ene-10-carboxylic acid —— C44H64O10
7,18-Bis(hydroxymethyl)-7,14,18,22-tetramethyl-20-phenylmethoxy-19-(3,4,5-trihydroxyoxan-2-yl)oxyhexacyclo[11.9.3.01,14.04,13.05,10.017,22]pentacos-3-ene-10-carboxylic acid
—— (7R*,8R*)-3-Methoxy-3',4,7,9,9'-pentahydroxy-8,4'-oxyneolignan 4-xyloside 62223-56-7 C24H32O11
(7R*,8R*)-3-Methoxy-3',4,7,9,9'-pentahydroxy-8,4'-oxyneolignan 4-xyloside
—— [7-(6-Cyclopentyl-3,4,5-trihydroxyoxan-2-yl)oxy-6-[[3-(diaminomethyl)phenyl]methyl]-5-hydroxy-9,10-dioxo-1-(2-phenylethenyl)anthracen-2-yl] acetate —— C42H42N2O10
[7-(6-Cyclopentyl-3,4,5-trihydroxyoxan-2-yl)oxy-6-[[3-(diaminomethyl)phenyl]methyl]-5-hydroxy-9,10-dioxo-1-(2-phenylethenyl)anthracen-2-yl] acetate
—— 7-Hydroxy-2,5-dimethyl-8-[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]chromen-4-one —— C17H20O8
7-Hydroxy-2,5-dimethyl-8-[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]chromen-4-one
—— 7-(benzoyloxymethyl)-4a-hydroxy-1-[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-5,7a-dihydro-1H-cyclopenta[c]pyran-4-carboxylic acid —— C23H26O12
7-(benzoyloxymethyl)-4a-hydroxy-1-[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-5,7a-dihydro-1H-cyclopenta[c]pyran-4-carboxylic acid
—— [7-hydroxy-7-methyl-1-[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-4a,5,6,7a-tetrahydro-1H-cyclopenta[c]pyran-5-yl] 3-methyl-5-(1,3,6-trihydroxy-2,2,6-trimethylcyclohexyl)penta-2,4-dienoate —— C30H46O13
[7-hydroxy-7-methyl-1-[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-4a,5,6,7a-tetrahydro-1H-cyclopenta[c]pyran-5-yl] 3-methyl-5-(1,3,6-trihydroxy-2,2,6-trimethylcyclohexyl)penta-2,4-dienoate
—— 7-ethenyl-2,4b,10-trihydroxy-1,1,4a,7-tetramethyl-3,4,5,6-tetrahydro-2H-phenanthren-9-one —— C20H28O4
7-ethenyl-2,4b,10-trihydroxy-1,1,4a,7-tetramethyl-3,4,5,6-tetrahydro-2H-phenanthren-9-one
—— 7-(2-hydroxypropan-2-yl)-4a-methyl-1-methylidene-3,4,5,6,7,8-hexahydro-2H-naphthalene-2,8a-diol —— C15H26O3
7-(2-hydroxypropan-2-yl)-4a-methyl-1-methylidene-3,4,5,6,7,8-hexahydro-2H-naphthalene-2,8a-diol
—— 7-(3-Aminopropyl)-32'-cyclohexyl-11'-dispiro[4.0.56.35]tetradecan-8-yl-9'-hydroxy-37'-methylspiro[2-benzofuran-3,29'-7-oxa-12,18-diazaundecacyclo[20.14.2.112,16.01,24.03,34.04,25.05,28.05,30.08,28.014,19.018,23]nonatriaconta-4(25),8,22,33-tetraene]-1,6'-dione —— C67H87N3O5
7-(3-Aminopropyl)-32'-cyclohexyl-11'-dispiro[4.0.56.35]tetradecan-8-yl-9'-hydroxy-37'-methylspiro[2-benzofuran-3,29'-7-oxa-12,18-diazaundecacyclo[20.14.2.112,16.01,24.03,34.04,25.05,28.05,30.08,28.014,19.018,23]nonatriaconta-4(25),8,22,33-tetraene]-1,6'-dione
—— 7-methyl-2,4a,5,6,7,7a-hexahydro-1H-cyclopenta[c]pyridine-4-carbaldehyde —— C10H15NO
7-methyl-2,4a,5,6,7,7a-hexahydro-1H-cyclopenta[c]pyridine-4-carbaldehyde
—— 7-Hydroxycalamenenal 20019-73-2 C15H20O2
7-Hydroxycalamenenal
—— 7-chloro-5'-(4-hydroxy-3,5-dimethoxyphenyl)-4,6-dimethoxy-8'-methylspiro[1-benzofuran-2,7'-5,8,9,10-tetrahydro-1H-pyrimido[4,5-b]quinoline]-2',3,4',6'-tetrone —— C29H26ClN3O10
7-chloro-5'-(4-hydroxy-3,5-dimethoxyphenyl)-4,6-dimethoxy-8'-methylspiro[1-benzofuran-2,7'-5,8,9,10-tetrahydro-1H-pyrimido[4,5-b]quinoline]-2',3,4',6'-tetrone
—— 7-Hydroxy-14-(4-methoxy-4-methylpent-2-enylidene)-4-methyl-9-methylidene-5,12-dioxatricyclo[8.4.0.04,6]tetradecan-11-one —— C21H30O5
7-Hydroxy-14-(4-methoxy-4-methylpent-2-enylidene)-4-methyl-9-methylidene-5,12-dioxatricyclo[8.4.0.04,6]tetradecan-11-one
—— 7,7-Dimethyl-6,12,19,21,24-pentaoxahexacyclo[12.10.0.02,11.05,10.015,23.018,22]tetracosa-2,4,8,10,15(23),16,18(22)-heptaen-4-ol —— C21H18O6
7,7-Dimethyl-6,12,19,21,24-pentaoxahexacyclo[12.10.0.02,11.05,10.015,23.018,22]tetracosa-2,4,8,10,15(23),16,18(22)-heptaen-4-ol
—— 7-Hydroxy-6-methoxyisochinolin 1810-58-8 C10H9NO2
7-Hydroxy-6-methoxyisochinolin
—— 7-(3-Aminopropyl)-45'-(cyclohexylmethyl)-25'-hydroxy-42'-methylspiro[2-benzofuran-3,6'-23-oxa-30,36-diazadodecacyclo[34.7.1.112,16.126,30.02,20.05,21.05,24.07,21.018,43.029,34.032,37.040,44]hexatetraconta-2(20),12(46),13,15,24,40(44)-hexaene]-1,22'-dione —— C61H75N3O5
7-(3-Aminopropyl)-45'-(cyclohexylmethyl)-25'-hydroxy-42'-methylspiro[2-benzofuran-3,6'-23-oxa-30,36-diazadodecacyclo[34.7.1.112,16.126,30.02,20.05,21.05,24.07,21.018,43.029,34.032,37.040,44]hexatetraconta-2(20),12(46),13,15,24,40(44)-hexaene]-1,22'-dione
—— 7,11-Dihydroxy-8,10,12-trimethyl-3-[1-(2-methyl-1,3-thiazol-4-yl)prop-1-en-2-yl]-4,17-dioxabicyclo[14.1.0]heptadecane-5,9-dione —— C25H37NO6S
7,11-Dihydroxy-8,10,12-trimethyl-3-[1-(2-methyl-1,3-thiazol-4-yl)prop-1-en-2-yl]-4,17-dioxabicyclo[14.1.0]heptadecane-5,9-dione
—— 7-Hydroxy-3,5,6,8-tetramethoxy-2-[4-[3,5,6-trihydroxy-4-[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyoxan-2-yl]oxyphenyl]chromen-4-one —— C30H36O18
7-Hydroxy-3,5,6,8-tetramethoxy-2-[4-[3,5,6-trihydroxy-4-[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyoxan-2-yl]oxyphenyl]chromen-4-one
—— 7-(benzyloxy)-3-(4-methoxyphenyl)-2-methyl-4H-chromen-4-one —— C24H20O4
7-(benzyloxy)-3-(4-methoxyphenyl)-2-methyl-4H-chromen-4-one
—— (7-hydroxy-2,3,5,6,7,8-hexahydro-1H-pyrrolizin-1-yl)methyl 2,3-dihydroxy-2-(1-methoxyethyl)-3-methylbutanoate —— C16H29NO6
(7-hydroxy-2,3,5,6,7,8-hexahydro-1H-pyrrolizin-1-yl)methyl 2,3-dihydroxy-2-(1-methoxyethyl)-3-methylbutanoate
—— [7-hydroxy-7-methyl-1-[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-4a,5,6,7a-tetrahydro-1H-cyclopenta[c]pyran-5-yl] 3-methyl-5-(1,2,3-trihydroxy-2,6,6-trimethylcyclohexyl)penta-2,4-dienoate —— C30H46O13
[7-hydroxy-7-methyl-1-[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-4a,5,6,7a-tetrahydro-1H-cyclopenta[c]pyran-5-yl] 3-methyl-5-(1,2,3-trihydroxy-2,6,6-trimethylcyclohexyl)penta-2,4-dienoate
—— 7-(4-amino-5-hydroxy-6-methyloxan-2-yl)oxy-9-ethyl-6,9,11-trihydroxy-4-methoxy-8,10-dihydro-7H-tetracene-5,12-dione —— C27H31NO9
7-(4-amino-5-hydroxy-6-methyloxan-2-yl)oxy-9-ethyl-6,9,11-trihydroxy-4-methoxy-8,10-dihydro-7H-tetracene-5,12-dione
—— 7,8-Dimethoxy-2-(2-methylsulfinylethenyl)chromen-4-one —— C14H14O5S
7,8-Dimethoxy-2-(2-methylsulfinylethenyl)chromen-4-one
—— 7-Hydroxy-3-[6-hydroxy-2,4-dimethoxy-3-(3-methylbut-2-enyl)phenyl]-2,3-dihydrochromen-4-one —— C22H24O6
7-Hydroxy-3-[6-hydroxy-2,4-dimethoxy-3-(3-methylbut-2-enyl)phenyl]-2,3-dihydrochromen-4-one
—— 7-[(4-ethenylbenzyl)oxy]-8-methyl-4-phenyl-2H-chromen-2-one —— C25H20O3
7-[(4-ethenylbenzyl)oxy]-8-methyl-4-phenyl-2H-chromen-2-one
—— 7-[(5-Amino-5-carboxypentanoyl)amino]-7-methoxy-8-oxo-3-[3-(4-sulfooxyphenyl)prop-2-enoyloxymethyl]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid —— C24H27N3O13S2
7-[(5-Amino-5-carboxypentanoyl)amino]-7-methoxy-8-oxo-3-[3-(4-sulfooxyphenyl)prop-2-enoyloxymethyl]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
—— 7-(3,4-dimethoxyphenyl)-N-ethyl-6-hydroxyhepta-2,4-dienamide —— C17H23NO4
7-(3,4-dimethoxyphenyl)-N-ethyl-6-hydroxyhepta-2,4-dienamide
—— 7-[[7-[[7-(Hydroxymethyl)-1-[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-1,4a,5,7a-tetrahydrocyclopenta[c]pyran-4-carbonyl]oxymethyl]-1-[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-1,4a,5,7a-tetrahydrocyclopenta[c]pyran-4-carbonyl]oxymethyl]-1-[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-1,4a,5,7a-tetrahydrocyclopenta[c]pyran-4-carboxylic acid —— C48H62O28
7-[[7-[[7-(Hydroxymethyl)-1-[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-1,4a,5,7a-tetrahydrocyclopenta[c]pyran-4-carbonyl]oxymethyl]-1-[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-1,4a,5,7a-tetrahydrocyclopenta[c]pyran-4-carbonyl]oxymethyl]-1-[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-1,4a,5,7a-tetrahydrocyclopenta[c]pyran-4-carboxylic acid
—— 7-Ethenyl-1,1,4a,8-tetramethyl-2,3,4,4b,5,8,8a,9,10,10a-decahydrophenanthren-3-ol —— C20H32O
7-Ethenyl-1,1,4a,8-tetramethyl-2,3,4,4b,5,8,8a,9,10,10a-decahydrophenanthren-3-ol
—— 7-[(2-Chloro-6-fluorophenyl)methyl]-8-[(4-ethylpiperazin-1-yl)methyl]-3-methylpurine-2,6-dione —— C20H24ClFN6O2
7-[(2-Chloro-6-fluorophenyl)methyl]-8-[(4-ethylpiperazin-1-yl)methyl]-3-methylpurine-2,6-dione
—— 7,9,15-Trihydroxy-10-methoxypentacyclo[10.7.1.02,11.03,8.016,20]icosa-1,3(8),4,6,12(20),13,15-heptaen-17-one —— C21H18O5
7,9,15-Trihydroxy-10-methoxypentacyclo[10.7.1.02,11.03,8.016,20]icosa-1,3(8),4,6,12(20),13,15-heptaen-17-one
—— 7-[(6-amino-1,2-dihydropyridin-4-yl)methyl]-4-[2-[4-[1-(5-amino-1H-pyrrol-2-yl)-1,3-dihydroxypropan-2-yl]oxyphenyl]-5-hydroxy-6-[(3-hydroxyphenyl)methoxy]-4-oxochromen-7-yl]oxy-1,5,9-trihydroxy-8-imidazolidin-4-yl-3-oxabicyclo[3.3.1]non-6-ene-2-carboxylic acid —— C47H50N6O15
7-[(6-amino-1,2-dihydropyridin-4-yl)methyl]-4-[2-[4-[1-(5-amino-1H-pyrrol-2-yl)-1,3-dihydroxypropan-2-yl]oxyphenyl]-5-hydroxy-6-[(3-hydroxyphenyl)methoxy]-4-oxochromen-7-yl]oxy-1,5,9-trihydroxy-8-imidazolidin-4-yl-3-oxabicyclo[3.3.1]non-6-ene-2-carboxylic acid
—— 7,18,19,23,25-Pentahydroxy-9,19,31-trimethyl-2,30-dioxaoctacyclo[16.11.2.01,17.03,16.04,13.06,11.017,22.024,29]hentriaconta-3(16),4(13),6(11),7,9,14,22,24(29),25,27-decaene-5,12,21-trione —— C32H24O10
7,18,19,23,25-Pentahydroxy-9,19,31-trimethyl-2,30-dioxaoctacyclo[16.11.2.01,17.03,16.04,13.06,11.017,22.024,29]hentriaconta-3(16),4(13),6(11),7,9,14,22,24(29),25,27-decaene-5,12,21-trione
—— 7-[4,5-Dihydroxy-6-methyl-3-[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyoxan-2-yl]oxy-5-hydroxy-2-(4-methoxyphenyl)-2,3-dihydrochromen-4-one —— C28H34O14
7-[4,5-Dihydroxy-6-methyl-3-[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyoxan-2-yl]oxy-5-hydroxy-2-(4-methoxyphenyl)-2,3-dihydrochromen-4-one
—— 7,51,54,55,63,68,76-Heptahydroxy-14,55-bis(hydroxymethyl)-57-methyl-68-[3-(3-methylbutan-2-yl)oxiran-2-yl]-32,61-dioxa-49,50-dithia-10,75-diazanonadecacyclo[58.8.2.252,59.15,9.110,13.112,23.116,47.124,36.158,64.02,60.02,64.012,21.013,47.014,19.024,43.026,35.028,33.036,41.052,57]octaheptaconta-5(78),6,8,17,19,27,29,42,59(72),65-decaen-44-yne-73,77-dione —— C82H100N2O14S2
7,51,54,55,63,68,76-Heptahydroxy-14,55-bis(hydroxymethyl)-57-methyl-68-[3-(3-methylbutan-2-yl)oxiran-2-yl]-32,61-dioxa-49,50-dithia-10,75-diazanonadecacyclo[58.8.2.252,59.15,9.110,13.112,23.116,47.124,36.158,64.02,60.02,64.012,21.013,47.014,19.024,43.026,35.028,33.036,41.052,57]octaheptaconta-5(78),6,8,17,19,27,29,42,59(72),65-decaen-44-yne-73,77-dione
—— 7-But-2-enyl-8-(ethylamino)-3-methylpurine-2,6-dione —— C12H17N5O2
7-But-2-enyl-8-(ethylamino)-3-methylpurine-2,6-dione
—— 7-ethyl-2,5-dimethyl-2,3-dihydro-1H-[1,4]diazepino[6,5-c]quinolin-6-one —— C16H19N3O
7-ethyl-2,5-dimethyl-2,3-dihydro-1H-[1,4]diazepino[6,5-c]quinolin-6-one
—— [7-amino-21-formyl-13-(hydroxymethyl)-6'-(3-hydroxypropyl)-12-methyl-22-(methylamino)-2,7'-dioxospiro[17,18-dithia-1,6-diazapentacyclo[17.5.1.04,9.010,15.023,25]pentacosa-4(9),7,14-triene-11,2'-3H-furo[3,2-g]chromene]-12-yl] 2-(2-hydroxyethyl)but-2-enoate —— C44H54N4O10S2
[7-amino-21-formyl-13-(hydroxymethyl)-6'-(3-hydroxypropyl)-12-methyl-22-(methylamino)-2,7'-dioxospiro[17,18-dithia-1,6-diazapentacyclo[17.5.1.04,9.010,15.023,25]pentacosa-4(9),7,14-triene-11,2'-3H-furo[3,2-g]chromene]-12-yl] 2-(2-hydroxyethyl)but-2-enoate
—— 7-[(4-Methylpiperazin-1-ium-1-yl)methyl]-3-oxo-2-[(3,4,5-trimethoxyphenyl)methylidene]-1-benzofuran-6-olate —— C24H28N2O6
7-[(4-Methylpiperazin-1-ium-1-yl)methyl]-3-oxo-2-[(3,4,5-trimethoxyphenyl)methylidene]-1-benzofuran-6-olate
—— 7b,9-Dihydroxy-3-(hydroxymethyl)-1,1,6,8-tetramethyl-5-oxo-1,1a,1b,4,4a,5,7a,7b,8,9-decahydro-9ah-cyclopropa[3,4]benzo[1,2-e]azulen-9a-yl acetate —— C22H30O6
7b,9-Dihydroxy-3-(hydroxymethyl)-1,1,6,8-tetramethyl-5-oxo-1,1a,1b,4,4a,5,7a,7b,8,9-decahydro-9ah-cyclopropa[3,4]benzo[1,2-e]azulen-9a-yl acetate
—— 7,11-dihydroxy-4,4,8,11b-tetramethyl-2,3,4a,5,7,10a,11,11a-octahydro-1H-naphtho[2,1-f][1]benzofuran-9-one —— C20H28O4
7,11-dihydroxy-4,4,8,11b-tetramethyl-2,3,4a,5,7,10a,11,11a-octahydro-1H-naphtho[2,1-f][1]benzofuran-9-one
—— 7-(3-Octyloxiran-2-yl)hept-1-en-4,6-diyn-3-ol —— C17H24O2
7-(3-Octyloxiran-2-yl)hept-1-en-4,6-diyn-3-ol
—— (7-But-2-enoyl-7-hydroxy-6-methyl-3-methylidene-2-oxo-3a,4,5,6,8,8a-hexahydrocyclohepta[b]furan-8-yl) 2-methylbut-2-enoate —— C20H26O6
(7-But-2-enoyl-7-hydroxy-6-methyl-3-methylidene-2-oxo-3a,4,5,6,8,8a-hexahydrocyclohepta[b]furan-8-yl) 2-methylbut-2-enoate
—— 7-Hydroxy-8-[4-hydroxy-5-[4-hydroxy-5-(5-hydroxy-4-methoxy-6-methyloxan-2-yl)oxy-6-methyloxan-2-yl]oxy-6-methyloxan-2-yl]oxy-5,19-dimethyl-15,18,20-trioxapentacyclo[14.5.1.04,13.05,10.019,22]docosa-1(21),10-dien-14-one —— C40H60O15
7-Hydroxy-8-[4-hydroxy-5-[4-hydroxy-5-(5-hydroxy-4-methoxy-6-methyloxan-2-yl)oxy-6-methyloxan-2-yl]oxy-6-methyloxan-2-yl]oxy-5,19-dimethyl-15,18,20-trioxapentacyclo[14.5.1.04,13.05,10.019,22]docosa-1(21),10-dien-14-one
—— 7-[(2-bromo-1H-indol-3-yl)methyl]-10-ethyl-4-(4-hydroxyphenyl)-8,13,15,17,19-pentamethyl-1-oxa-5,8,11-triazacyclononadec-15-ene-2,6,9,12-tetrone —— C37H47BrN4O6
7-[(2-bromo-1H-indol-3-yl)methyl]-10-ethyl-4-(4-hydroxyphenyl)-8,13,15,17,19-pentamethyl-1-oxa-5,8,11-triazacyclononadec-15-ene-2,6,9,12-tetrone
—— 7-Acetyl-1,7-dihydroxy-3-methoxy-5,6-dihydrocyclohepta[b]quinoline-8,11-dione —— C17H15NO6
7-Acetyl-1,7-dihydroxy-3-methoxy-5,6-dihydrocyclohepta[b]quinoline-8,11-dione