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(+)-4-Acetoxymarilzallene
(+)-6-O-demethylpestalotiopsin A
(+)-6-O-demethylpestalotiopsin C
(+)-dimericbiscognienyne A
(-)-4-Acetoxymarilzallene, (rel)-
(1-[(3-chlorome-(E)-thylene)-2,3-dihydro-1-benzoxepin-7-yl]-methanol)
(16R)-deshydroxymethyl-stemmadenine
(16S)-deshydroxymethyl-stemmadenine
(1aS,2S,3aR,6aR)-2,5-dihydroxy-6b-(3-methylbut-2-enyl)-5-prop-1-en-2-yl-2,3,3a,6a-tetrahydro-1aH-oxireno[2,3-g][1]benzouran-4-one
(1R,2R,3S,5R)-2-Acetamido-7-(1,2-dihydroxyethyl)-3-hydroxy-6,8-dioxabicyclo[3.2.1]octane-5-carboxylic acid
(1R,2S,3R,4S,5S)-2,3-epoxy-5-methylcyclohexane-1,4-diol
(1S,3R,4S,8S,10R)-3,10-dihydroxy-6,13-bis[(2E,4E)-1-hydroxyhexa-2,4-dienylidene]-1,4,8,11-tetramethyl-2,9-dioxapentacyclo[8.4.0.03,8.04,14.07,11]tetradecane-5,12-dione
(1S,6R)-3-methyl-7-oxabicyclo[4.1.0]heptane-2,4,5-trione
(1S,7R,8R,14S)-15,17-diazatetracyclo[12.2.2.1(3,7).1(8,12)]icosa-3(20),12(19)-diene-6,9-dione
(1xi,4xi,6xi)-Carvone oxide
(2R)-1-[(4,8-dimethoxy-7-furo[2,3-b]quinolinyl)oxy]-3-methylbutane-2,3-diol
(2R,3S,4S,5E,7S)-2-heptyl-3,4,7-trihydroxy-2,3,4,7,8,9-hexahydrooxecin-10-one
(2R,3S,5E,7S,8Z)-4-chloro-3,7-dihydroxy-2-methyl-2,3,4,7-tetrahydrooxecin-10-one
(2R,5R,6E,8S)-5,8-dihydroxy-2-methyl-2,3,4,5,8,9-hexahydrooxecin-10-one
(3E)-3-[(2E,4E,6R)-1-hydroxy-6-[(1S,2S,4S,5R,6S,7R,8R)-5-hydroxy-1,2,7-trimethyl-3,9,10-trioxatricyclo[4.3.1.02,4]decan-8-yl]-4-methylhepta-2,4-dienylidene]pyrrolidine-2,4-dione
(4aR,10bS)-noroxomaritidine
(4aS,10bR)-noroxomaritidine
(4S)-Limonene-1,2-epoxide
(5e)-10-Heptyl-3,4,5,8,9,10-hexahydro-5,8,9-trihydroxy-2h-oxecin-2-one
(5E)-4,7,8-Trihydroxy-2-(2-hydroxypentyl)-9,9-dimethyl-3,4,7,8-tetrahydro-2H-oxecin-10-one
(5S,7R, 8R,9R,10S)-(-)-7,8-seco-7,8-oxacassa-13,15-dien-7-ol
(5S,7R,8R,9R,10S)-(-)-7,8-seco-7,8-oxacassa-13,15-dien-7-ol-17-al
(5S,7R,8R,9R,10S)-(-)-7,8-seco-7,8-oxacassa-13,15-diene-7,17-diol
(6Ar,9S,10aR)-9-(methylsulfanylmethyl)-7-propyl-6,6a,8,9,10,10a-hexahydro-4H-indolo[4,3-fg]quinoline
(6S,7R,9R)-6,7-dihydroxy-9-propylnon-4-eno-9-lactone
(7S,8S)-methoxy-3',7-epoxy-8,4'-oxyneolignan-4,9,9'-triol
(8aR,12S,12aR)-12-hydroxy-4-methyl-4,5,6,7,8,8a,12,12a-octahydro-1H-3-benzoxecine-2,9-dione
(E)-(3-chloromethylene-2,3-dihydrobenzo[b]oxepin-7-yl)methanol
(S)-3-O-demethylscoulerine
(S)-cis-N-methyltetrahydropalmatine
(S)-tetrahydrocolumbamine
(Z)-9-hydroxybenzo[c]oxepin-3(1H)-one
1,1'-dioxine-2,2'-dipropionic acid
1,2:3,4-Diepoxy-p-menth-8-ene
1,4Lambda~6~-oxathiane-4,4-dione
1,6:5,9:8,12:11,16-tetraanhydro-2,3,4,10,13,14-hexadeoxy-D-glycero-D-allo-D-gulo-heptadeca-2,13-dienitol
1,7-Dioxaspiro[5.6]dodecane
1,8-dihydroxy-10-methoxy-3-methyldibenzo[b,e]oxepine-6,11-dione
1,9-dihydroxy-3-(hydroxymethyl)-10-methoxydibenzo[b,e]oxepine-6,11-dione
1-(2-furanylmethyl)-7,7-dimethyl-2-(4-methylphenyl)-5,8-dihydropyrano[4,3-d]pyrimidine-4-thione
1-(3,9-Dihydroxy-1,3-dihydrobenzo[c]oxepin-3-yl)ethanone, (rac)-
1-[(3E)-3-(chloromethylidene)-6-hydroxy-1-benzoxepin-7-yl]ethanone
1-[(6-methoxy-2-furo[2,3-b]quinolinyl)-oxomethyl]-4-piperidinecarboxylic acid ethyl ester
1-[2-(diethylamino)ethyl]-7,7-dimethyl-2-(4-methylphenyl)-5,8-dihydropyrano[4,3-d]pyrimidine-4-thione
1-Hydroxy-10-methoxy-dibenz[b,e]oxepin-6,11-dione
1-hydroxy-3-(hydroxymethyl)-10-methoxybenzo[c][1]benzoxepine-6,11-dione
10-Hexyl-11,12-dioxatricyclo[7.2.1.01,6]dodecane-2,3-diol
11-(Methylthiono)canthin-6-one
12,13-Deoxytrichodermadiene
12,13-Epoxy-22S,25S,5alpha-Veratramine 3beta,17,24alpha-triol-6-one-N,O(3)-diacetate
13-(2-methylcrotonoyloxy)lupanine
17-dehydropreakuammicine(1+)
17-hydroxypreakuammicine(1+)
1beta,10beta-Epoxy-nardosinane
2',3'-epoxy-13-hydroxy-4'-oxomacrophorin A
2,3,8,9-tetramethoxy-13-methyl-5,6,11,12-tetrahydro-5,11-epiminodibenzo[a,e][8]annulene +
2,3,8,9-tetramethoxy-5,6,11,12-tetrahydro-5,11-epiminodibenzo[a,e][8]annulene +
2,3,9,10-tetrahydroxyberbine
2,3-dihydro-1,4-dioxin-5-carboxylic acid [2-oxo-2-(4-phenylbutan-2-ylamino)ethyl] ester
2,3-Dihydro-1-benzoxepin derivative 3
2,3-Dihydro-1-benzoxepin derivative 4a
2,3-dihydro-8-methoxyfuro(2,3-b)quinoline
2,4,6-Trimethyl-1,3,5-dioxathiane
2,4-dichloro-1,9-dihydroxy-3-(hydroxymethyl)-10-methoxydibenzo[b,e]oxepine-6,11-dione
2,7-Dimethyl-1,6-dioxaspiro[4.6]undecane
2,9-diamino-5,7-bis(trimethylsilyl)benzo[a]pyrimido[2,1,6-cd]pyrrolizine-3,4,8-tricarbonitrile
2-(1-hydroxyethyl)-3,4-dihydrobenzo[f][1,4]oxazepin-5(2H)-one
2-(2,4-dihydroxy-5-prenylphenyl)-5,6-methylenedioxybenzofuran
2-Methyl-1,7-dioxaspiro[5.6]dodecane
2-methyl-2,3,4,5-tetrahydro-1,5-benzoxazepin-4-one
2-methyl-4-propyl-1,3-oxathiane
2-O-deacetylpestalotiopsin B
2-Phenoxathiinamine-10,10-dioxide
2-tert-butyl-9-fluoro-1,6-dihydrobenzo[h]imidazo[4,5-f]isoquinolin-7-one
23-demethyl 8,13-deoxydemethoxynargenicin
23-demethyl 8,13-deoxynodusmicin
3(4->5)-Abeo-4,11:4,12-diepoxy-3-eudesmanol
3,4-deoxy-3,4-didehydromultiplolide A
3,4-dihydro-2H-pyrano[2,3-b]quinolin-7-yl-(4-methoxycyclohexyl)methanone
3,4-Epoxy-6-methylcyclohexylmethyl-3,4-epoxy-6-methylcyclo-hexanecarboxylate
3,4-Epoxy-p-menth-1(7)-ene
3,7-Epoxycaryophyllan-6-One
3,8,9-trihydroxy-10-propyl-3,4,5,8,9,10-hexahydro-2H-oxecin-2-one
3-[(6aR,9R)-7-methyl-6,6a,8,9-tetrahydro-4H-indolo[4,3-fg]quinoline-9-yl]-1,1-diethylurea
3-[(6aR,9R,10aR)-7-methyl-6,6a,8,9,10,10a-hexahydro-4H-indolo[4,3-fg]quinoline-9-yl]-1,1-diethylurea
3-aza-A-homocholest-4a-en-4-one
3-methyl-6-thiophen-2-yl-4-isoxazolo[5,4-b]pyridinecarboxylic acid ethyl ester
3-Vinyl-7-oxabicyclo[4.1.0]heptane
4'-demethylepipodophyllotoxin +
4'-demethylpodophyllotoxin
4,11-Dichloro-5,12-dihydroquino[2,3-b]acridine-7,14-dione
4,5-Dihydro-1-benzoxepin-3(2H)-one
4-((Z)-but-2-enoyloxy)-12,13-epoxytrichotheca-7,9-diene
4-((Z)-but-2-enoyloxy)-8-chloro-12-hydroxy-7,13-epoxytrichothec-9-ene
4-(1'-hydroxy-2'-butenyl)-l,4-dihydro-2,3-benzodioxocin-10-ol
4-(Methylthio)canthin-6-one
4-hydroxy-3-methoxy-11-methyldecahydro-1H-benzoxecine-1,12-dione
4-hydroxy-6-propan-2-ylpyrano[3,2-c]quinoline-2,5-dione
4-methyl-N-[(4-methylphenyl)methyl]-2-furo[3,2-c]quinolinecarboxamide
5,8-dihydroxy-10-methyl-5,8,9,10-tetrahydro-2H-oxecin-2-one
5-(Hydroxymethyl)-6,8-dioxabicyclo[3.2.1]octane-2,3,4-triol
5-(Methylthio)canthin-6-one
5-bromo-3-pyridinecarboxylic acid (10a-methoxy-4,7-dimethyl-6a,8,9,10-tetrahydro-6H-indolo[4,3-fg]quinoline-9-yl)methyl ester
5-bromo-3-pyridinecarboxylic acid [(6aS,9R,10aS)-10a-methoxy-4,7-dimethyl-6a,8,9,10-tetrahydro-6H-indolo[4,3-fg]quinoline-9-yl]methyl ester
5-chloro-2-methyl-2,3,3a,12b-tetrahydrodibenzo[2,3:6,7]oxepino[4,5-c]pyrrole +
5-henicosyldihydrofuran-2(3H)-one
5-hydroxy-2,8-dimethyl-6,7,8,9-tetrahydropyrano[3,2-h][1]benzoxepin-4-one
5-hydroxy-2,8-dimethyl-6,9-dihydropyrano[3,2-h][1]benzoxepin-4-one
5-Hydroxy-4-methoxy-3-methyl-2,6-canthinedione
5-Methoxy-4,4,6-trimethyl-7-oxabicyclo[4.1.0]heptan-2-one
6-(aminomethyl)-3,4,5-trihydroxy-2-[(E)-3-hydroxy-2-[(2-hydroxy-12-methyltridecanoyl)amino]-18-methylnonadec-4-enoxy]oxane-2-carboxylic acid
6-Ethyl-1-methyl-2,7,8-trioxabicyclo[3.2.1]octane
6-methoxy-11-methyl-1,3,4,9,10,10a-hexahydro-2H-10,4a-(epiminoethano)phenanthrene +
6-methoxy-N-(thiophen-2-ylmethyl)-2-furo[2,3-b]quinolinecarboxamide
6-methyl-12-indolo[1,2-c]quinazolinamine
6-O-methyl-2-deprenylrheediaxanthone B
6-oxo-1,6-dihydrodibenzo[cd,g]indazole-3-sulfonic acid
7'-amino-1',3'-dimethyl-2,2',4'-trioxo-6'-spiro[1H-indole-3,5'-pyrano[2,3-d]pyrimidine]carbonitrile
7-(14-hydroxypropan-13-yl)-8-isobutyl-7,8-dihydrobenzo[c]oxepin-1(3H)-one
7-amino-5-(4-ethoxy-3-methoxyphenyl)-4-oxo-3,5-dihydropyrano[2,3-d]pyrimidine-6-carbonitrile
7-methoxy-N-(3-pyridinylmethyl)-2-furo[2,3-b]quinolinecarboxamide
7alpha,8alpha-dihydroxy-3,5-decadien-10-olide
8,5'-cyclo-2'-deoxyadenosine
8,5'-cyclo-2'-deoxyadenosine monophosphate
8,5'-cyclo-2'-deoxyguanosine
8,5'-cyclo-2'-deoxyguanosine monophosphate
8-[(E)-3-hydroxybut-1-enyl]-1,5-dimethyl-6-oxabicyclo[3.2.1]octane-3,8-diol
8-amino-2,12-dihydroxy-4a,9-dihydro[1,3,2]dioxaphosphinino[4',5':5,6]pyrano[3,2-g]pteridin-10(4H)-one 2-oxide
8-cyclohexyl-2,3,3a,4,5,6-hexahydropyrazino[3,2,1-jk]carbazole +
8-O-acetyl 8-epi-malyngamide C
9-(Methylthio)canthin-6-one
9-HYDROXY-4-PHENYLPYRROLO[3,4-C]CARBAZOLE-1,3(2H,6H)-DIONE
9-Methoxy-2,2-dimethyl-6H-pyrano[3,2-c]quinolin-5-one
[(1aR,2R,3R,3'S,3aR,5R,7bS)-3'-(dimethoxymethyl)-3,3',3a-trimethyl-6-oxospiro[2,3,4,7b-tetrahydro-1aH-naphtho[1,2-b]oxirene-5,2'-oxirane]-2-yl] acetate
[(1aR,6aR,7S,7aR)-3,3,6a,7a-tetramethyl-2-oxo-1a,2a,4,5,6,7-hexahydronaphtho[2,3-b]oxiren-7-yl]methyl 6-oxooctadecanoate
[(1S,8aS)-2,5,5,8a-tetramethyl-1,4,4a,6,7,8-hexahydronaphthalen-1-yl]methyl octadec-9-enoate
[(1S,8aS)-2,5,5,8a-tetramethyl-1,4,4a,6,7,8-hexahydronaphthalen-1-yl]methyl octadeca-9,12-dienoate
[(5R,6R,9R,10S,11S,12R)-2,6-dihydroxy-7,10,11-trimethyl-4,14-dioxatetracyclo[7.4.1.02,11.05,10]tetradec-7-en-12-yl] (E)-but-2-enoate
[19-acetyloxy-2-hydroxy-7-(2-hydroxypropan-2-yl)-4,12,17,18,20-pentamethyl-23-oxo-8,13,16-trioxahexacyclo[12.9.0.03,12.04,9.015,18.015,21]tricosa-1(14),21-dien-5-yl] acetate
[4-(1,3-benzodioxol-5-ylmethyl)-1-piperazinyl]-(7-methoxy-2-furo[2,3-b]quinolinyl)methanone
\{(E)-3-(Chloromethylene)-2,3-dihydrobenzo[b]oxepin-7-yl\}methylPalmitate
\{(Z)-3-(chloromethylene)-2,3-dihydrobenzo[b]oxepin-7-yl\}methanol
acetic acid [1-[(4,8-dimethoxy-7-furo[2,3-b]quinolinyl)oxy]-3-hydroxy-3-methylbutan-2-yl] ester
an (S)-7,8,13,14-tetrahydroprotoberberine +
Aranorosin-2-methyl ether
benzofuropyranochromene +
coelenterazine dioxetanone
cyclopentacyclononaoxirene +
cyclopentafurofurochromene +
dalcochinin-8'-O-beta-D-glucoside
dehydroxychlorofusarielin B
dihydro-beta-erythroidine
dihydroprecondylocarpine acetate
dihydroprecondylocarpine acetate (enamine form)
ethyl 4-hydroxy-3-methylisoxazolo[5,4-b]pyridine-5-carboxylate
Hydroxyplatensic acid methyl ester
isoquinolinonaphthyridine +
lysergic acid diethylamide +
methyl (1S,2S,16E)-16-ethylidene-2-formyl-4,14-diazatetracyclo[12.2.2.0(3,11).0(5,10)]octadeca-3(11),5(10),6,8-tetraene-2-carboxylate
molybdopterin synthase intermediate
N-(7-methyl-2,5-dioxo-4,4a,6,10b-tetrahydro-3H-pyrano[3,2-c]quinolin-3-yl)propanamide
N-[(4,7-dimethyl-6,6a,8,9,10,10a-hexahydroindolo[4,3-fg]quinoline-9-yl)methyl]carbamic acid (phenylmethyl) ester
N-[2-(dipropylamino)ethyl]-4-methyl-2-furo[3,2-c]quinolinecarboxamide
N-Acetoxymethylflindersine
O-acetyl-15alpha-stemmadenine
oxatetracycloalkane + Any organic heterotetracyclic compound where at least one of the specified hetero atoms is oxygen.
Penicimutanolone A methyl ether
precondylocarpine acetate
pyranoindolizinoquinoline +
Rel-(5aR,6S,7S,8R,9R)-9-formyl-7-hydroxy-3,8-dimethyl-1-oxo-5a,6-(2,2-dimethyl-propano)-8,9-methano-5a,6,7,8,9-pentahydro-2,5-dioxaanthracene
tetracyclic antidepressant +
triptophenolide methyl ether
xi-2-Methyl-1,3-oxathiane
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