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    —— 8-Methoxy-6-methyl-4-oxochromene-2-carboxylate —— C12H9O5-
    8-Methoxy-6-methyl-4-oxochromene-2-carboxylate
    —— (8S,8aS)-2-acetyl-8-(furan-3-yl)-6-imino-3,5,8,8a-tetrahydro-1H-isoquinoline-5,7,7-tricarbonitrile —— C18H15N5O2
    (8S,8aS)-2-acetyl-8-(furan-3-yl)-6-imino-3,5,8,8a-tetrahydro-1H-isoquinoline-5,7,7-tricarbonitrile
    —— (8R,8aS)-8-(3-hydroxyphenyl)-6-imino-2-methyl-1,2,3,5,8,8a-hexahydroisoquinolin-2-ium-5,7,7-tricarbonitrile —— C19H18N5O+
    (8R,8aS)-8-(3-hydroxyphenyl)-6-imino-2-methyl-1,2,3,5,8,8a-hexahydroisoquinolin-2-ium-5,7,7-tricarbonitrile
    —— 8-Methyl-4-oxochromene-2-carboxylate —— C11H7O4-
    8-Methyl-4-oxochromene-2-carboxylate
    —— [(8aR)-1,3,4,5,6,7,8,8a-octahydropyrrolo[1,2-a]pyrazin-5-ium-2-yl]-(1-methyl-4-nitropyrazol-3-yl)methanone —— C12H18N5O3+
    [(8aR)-1,3,4,5,6,7,8,8a-octahydropyrrolo[1,2-a]pyrazin-5-ium-2-yl]-(1-methyl-4-nitropyrazol-3-yl)methanone
    —— 8-Methoxy-5-nitro-4-oxochromene-2-carboxylate —— C11H6NO7-
    8-Methoxy-5-nitro-4-oxochromene-2-carboxylate
    —— (8R,8aS)-8-(3-hydroxyphenyl)-6-imino-2-methyl-3,5,8,8a-tetrahydro-1H-isoquinoline-5,7,7-tricarbonitrile —— C19H17N5O
    (8R,8aS)-8-(3-hydroxyphenyl)-6-imino-2-methyl-3,5,8,8a-tetrahydro-1H-isoquinoline-5,7,7-tricarbonitrile
    —— 8-[4-(2-hydroxyethyl)piperazin-1-ium-1-ylidene]-3-methyl-7-(2-methylprop-2-enyl)-9H-purine-2,6-dione —— C16H25N6O3+
    8-[4-(2-hydroxyethyl)piperazin-1-ium-1-ylidene]-3-methyl-7-(2-methylprop-2-enyl)-9H-purine-2,6-dione
    —— [(8aS)-1,3,4,5,6,7,8,8a-octahydropyrrolo[1,2-a]pyrazin-5-ium-2-yl]-(1-methyl-4-nitropyrazol-3-yl)methanone —— C12H18N5O3+
    [(8aS)-1,3,4,5,6,7,8,8a-octahydropyrrolo[1,2-a]pyrazin-5-ium-2-yl]-(1-methyl-4-nitropyrazol-3-yl)methanone
    —— [(8aS)-1,3,4,5,6,7,8,8a-octahydropyrrolo[1,2-a]pyrazin-5-ium-2-yl]-(1,5-dimethyl-4-nitropyrazol-3-yl)methanone —— C13H20N5O3+
    [(8aS)-1,3,4,5,6,7,8,8a-octahydropyrrolo[1,2-a]pyrazin-5-ium-2-yl]-(1,5-dimethyl-4-nitropyrazol-3-yl)methanone
    —— 8-Chloro-4-(4-methylpiperazin-4-ium-1-yl)-1-propyl-[1,2,4]triazolo[4,3-a]quinoxaline —— C17H22ClN6+
    8-Chloro-4-(4-methylpiperazin-4-ium-1-yl)-1-propyl-[1,2,4]triazolo[4,3-a]quinoxaline
    —— 8,9-dihydro-7H-benzo[7]annulene-5-carboxylate —— C12H11O2-
    8,9-dihydro-7H-benzo[7]annulene-5-carboxylate
    —— 8-Fluoro-2-methyl-1,2,3,4-tetrahydrobenzo[b][1,6]naphthyridin-2-ium-10-carboxamide —— C14H15FN3O+
    8-Fluoro-2-methyl-1,2,3,4-tetrahydrobenzo[b][1,6]naphthyridin-2-ium-10-carboxamide
    —— 8-Ethyl-3,3-dimethyl-6-piperidin-1-yl-1,4-dihydropyrano[3,4-c]pyridin-7-ium-5-carbonitrile —— C18H26N3O+
    8-Ethyl-3,3-dimethyl-6-piperidin-1-yl-1,4-dihydropyrano[3,4-c]pyridin-7-ium-5-carbonitrile
    —— 8-Ethyl-2-(ethylamino)-7-oxopteridine-6-carboxylate —— C11H12N5O3-
    8-Ethyl-2-(ethylamino)-7-oxopteridine-6-carboxylate
    —— (8S,8aR)-2',2'-dimethylspiro[5,6,7,8a-tetrahydro-[1,3]thiazolo[3,2-a]pyrazin-7-ium-8,4'-oxane]-3-one —— C12H21N2O2S+
    (8S,8aR)-2',2'-dimethylspiro[5,6,7,8a-tetrahydro-[1,3]thiazolo[3,2-a]pyrazin-7-ium-8,4'-oxane]-3-one
    —— (8R,8aS)-2',2'-dimethylspiro[5,6,7,8a-tetrahydro-[1,3]thiazolo[3,2-a]pyrazin-7-ium-8,4'-oxane]-3-one —— C12H21N2O2S+
    (8R,8aS)-2',2'-dimethylspiro[5,6,7,8a-tetrahydro-[1,3]thiazolo[3,2-a]pyrazin-7-ium-8,4'-oxane]-3-one
    —— (8R,8aR)-2',2'-dimethylspiro[5,6,7,8a-tetrahydro-[1,3]thiazolo[3,2-a]pyrazin-7-ium-8,4'-oxane]-3-one —— C12H21N2O2S+
    (8R,8aR)-2',2'-dimethylspiro[5,6,7,8a-tetrahydro-[1,3]thiazolo[3,2-a]pyrazin-7-ium-8,4'-oxane]-3-one
    —— 8-methyl-5H-pyrimido[5,4-b]indole-4-thiolate —— C11H8N3S-
    8-methyl-5H-pyrimido[5,4-b]indole-4-thiolate
    —— 8-Nitro-1,3,6-triazoniatricyclo[4.3.1.13,8]undecane —— C8H17N4O2+3
    8-Nitro-1,3,6-triazoniatricyclo[4.3.1.13,8]undecane
    —— 8-Bromo-1-methyl-2,3,4,5-tetrahydroazepino[2,3-b]quinolin-11-ium-6-amine —— C14H17BrN3+
    8-Bromo-1-methyl-2,3,4,5-tetrahydroazepino[2,3-b]quinolin-11-ium-6-amine
    —— (8R)-8-ethoxycarbonyl-6,7,8,9-tetrahydro-5H-carbazole-1-carboxylate —— C16H16NO4-
    (8R)-8-ethoxycarbonyl-6,7,8,9-tetrahydro-5H-carbazole-1-carboxylate
    —— 8-(2-piperidin-1-ium-1-ylethylsulfanyl)-7H-purin-6-amine —— C12H19N6S+
    8-(2-piperidin-1-ium-1-ylethylsulfanyl)-7H-purin-6-amine
    —— 8-Methoxy-2-methyl-3-prop-2-enylquinoline-4-thiolate —— C14H14NOS-
    8-Methoxy-2-methyl-3-prop-2-enylquinoline-4-thiolate
    —— [(8R,9S,10R,13S,14R,17S)-10,13-dimethyl-3-oxo-1,2,6,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-17-yl] acetate —— C21H30O3
    [(8R,9S,10R,13S,14R,17S)-10,13-dimethyl-3-oxo-1,2,6,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-17-yl] acetate
    —— (8aS)-2,3,4,5,6,7,8,8a-octahydropyrrolo[1,2-a]pyrazin-5-ium-1-one —— C7H13N2O+
    (8aS)-2,3,4,5,6,7,8,8a-octahydropyrrolo[1,2-a]pyrazin-5-ium-1-one
    —— 8-(4-propan-2-ylpiperazin-4-ium-1-yl)-7H-purin-6-amine —— C12H20N7+
    8-(4-propan-2-ylpiperazin-4-ium-1-yl)-7H-purin-6-amine
    —— (8R,8aS)-6-imino-2-propyl-8-pyridin-3-yl-3,5,8,8a-tetrahydro-1H-isoquinoline-5,7,7-tricarbonitrile —— C20H20N6
    (8R,8aS)-6-imino-2-propyl-8-pyridin-3-yl-3,5,8,8a-tetrahydro-1H-isoquinoline-5,7,7-tricarbonitrile
    —— (8aS)-2-(2-adamantyl)-2,3,4,5,6,7,8,8a-octahydro-1H-pyrrolo[1,2-a]pyrazine-2,5-diium —— C17H30N2+2
    (8aS)-2-(2-adamantyl)-2,3,4,5,6,7,8,8a-octahydro-1H-pyrrolo[1,2-a]pyrazine-2,5-diium
    —— (8R,8aS)-6-imino-2-propyl-8-pyridin-3-yl-1,2,3,5,8,8a-hexahydroisoquinolin-2-ium-5,7,7-tricarbonitrile —— C20H21N6+
    (8R,8aS)-6-imino-2-propyl-8-pyridin-3-yl-1,2,3,5,8,8a-hexahydroisoquinolin-2-ium-5,7,7-tricarbonitrile
    —— (8R,8aR)-2-ethyl-6-imino-8-pyridin-4-yl-3,5,8,8a-tetrahydro-1H-isoquinoline-5,7,7-tricarbonitrile —— C19H18N6
    (8R,8aR)-2-ethyl-6-imino-8-pyridin-4-yl-3,5,8,8a-tetrahydro-1H-isoquinoline-5,7,7-tricarbonitrile
    —— 8-Ethyl-3,3-dimethyl-6-pyrrolidin-1-yl-1,4-dihydropyrano[3,4-c]pyridin-7-ium-5-carbonitrile —— C17H24N3O+
    8-Ethyl-3,3-dimethyl-6-pyrrolidin-1-yl-1,4-dihydropyrano[3,4-c]pyridin-7-ium-5-carbonitrile
    —— 8-Ethyl-3,3-dimethyl-6-(2-morpholin-4-ium-4-ylethylamino)-1,4-dihydropyrano[3,4-c]pyridin-7-ium-5-carbonitrile —— C19H30N4O2+2
    8-Ethyl-3,3-dimethyl-6-(2-morpholin-4-ium-4-ylethylamino)-1,4-dihydropyrano[3,4-c]pyridin-7-ium-5-carbonitrile
    —— 8-ethyl-3,3-dimethyl-6-[[(2R)-oxolan-2-yl]methylamino]-1,4-dihydropyrano[3,4-c]pyridin-7-ium-5-carbonitrile —— C18H26N3O2+
    8-ethyl-3,3-dimethyl-6-[[(2R)-oxolan-2-yl]methylamino]-1,4-dihydropyrano[3,4-c]pyridin-7-ium-5-carbonitrile
    —— (8S,8aR)-8-methyl-8-phenyl-5,6,7,8a-tetrahydro-[1,3]thiazolo[3,2-a]pyrazin-7-ium-3-one —— C13H17N2OS+
    (8S,8aR)-8-methyl-8-phenyl-5,6,7,8a-tetrahydro-[1,3]thiazolo[3,2-a]pyrazin-7-ium-3-one
    —— (8R,8aS)-8-methyl-8-phenyl-5,6,7,8a-tetrahydro-[1,3]thiazolo[3,2-a]pyrazin-7-ium-3-one —— C13H17N2OS+
    (8R,8aS)-8-methyl-8-phenyl-5,6,7,8a-tetrahydro-[1,3]thiazolo[3,2-a]pyrazin-7-ium-3-one
    —— (8S,8aS)-8-methyl-8-phenyl-5,6,7,8a-tetrahydro-[1,3]thiazolo[3,2-a]pyrazin-7-ium-3-one —— C13H17N2OS+
    (8S,8aS)-8-methyl-8-phenyl-5,6,7,8a-tetrahydro-[1,3]thiazolo[3,2-a]pyrazin-7-ium-3-one
    —— (8R,8aR)-8-methyl-8-phenyl-5,6,7,8a-tetrahydro-[1,3]thiazolo[3,2-a]pyrazin-7-ium-3-one —— C13H17N2OS+
    (8R,8aR)-8-methyl-8-phenyl-5,6,7,8a-tetrahydro-[1,3]thiazolo[3,2-a]pyrazin-7-ium-3-one
    —— (8S)-6-amino-2,4-dioxo-8-phenyl-1,8-dihydropyrano[3,2-d]pyrimidine-7-carbonitrile —— C14H10N4O3
    (8S)-6-amino-2,4-dioxo-8-phenyl-1,8-dihydropyrano[3,2-d]pyrimidine-7-carbonitrile
    —— 8-methoxy-5H-pyrimido[5,4-b]indole-4-thiolate —— C11H8N3OS-
    8-methoxy-5H-pyrimido[5,4-b]indole-4-thiolate
    —— (8R,9S,13S,14R)-3-hydroxy-1,13-dimethyl-9,11,12,14,15,16-hexahydro-8H-cyclopenta[a]phenanthren-17-one —— C19H22O2
    (8R,9S,13S,14R)-3-hydroxy-1,13-dimethyl-9,11,12,14,15,16-hexahydro-8H-cyclopenta[a]phenanthren-17-one
    —— 8-[(2R)-2,6-dimethylhept-5-enyl]-1,5-diazoniabicyclo[3.2.1]octane —— C15H30N2+2
    8-[(2R)-2,6-dimethylhept-5-enyl]-1,5-diazoniabicyclo[3.2.1]octane
    —— 8-(2-Carboxylatoethylsulfanyl)naphthalene-1-carboxylate —— C14H10O4S-2
    8-(2-Carboxylatoethylsulfanyl)naphthalene-1-carboxylate
    —— 8-chloro-2,3-dihydro-1H-imidazo[1,2-a]pyrazin-4-ium —— C6H7ClN3+
    8-chloro-2,3-dihydro-1H-imidazo[1,2-a]pyrazin-4-ium
    —— 8-Bromo-6-chloro-2-oxochromene-3-carboxylate —— C10H3BrClO4-
    8-Bromo-6-chloro-2-oxochromene-3-carboxylate
    —— 8-bromo-7-[(2S)-2-chloropropyl]-1,3-dimethylpurine-2,6-dione —— C10H12BrClN4O2
    8-bromo-7-[(2S)-2-chloropropyl]-1,3-dimethylpurine-2,6-dione
    —— 8-bromo-7-[(2R)-2-hydroxybutyl]-1,3-dimethylpurine-2,6-dione —— C11H15BrN4O3
    8-bromo-7-[(2R)-2-hydroxybutyl]-1,3-dimethylpurine-2,6-dione
    —— 8-chloro-7-[(2S)-3-chloro-2-hydroxypropyl]-1,3-dimethylpurine-2,6-dione —— C10H12Cl2N4O3
    8-chloro-7-[(2S)-3-chloro-2-hydroxypropyl]-1,3-dimethylpurine-2,6-dione
    —— 8-chloro-7-[(2R)-3-chloro-2-hydroxypropyl]-1,3-dimethylpurine-2,6-dione —— C10H12Cl2N4O3
    8-chloro-7-[(2R)-3-chloro-2-hydroxypropyl]-1,3-dimethylpurine-2,6-dione
    —— 8-methoxy-5-[[(2R)-oxiran-2-yl]methoxy]-2-propylchromen-4-one —— C16H18O5
    8-methoxy-5-[[(2R)-oxiran-2-yl]methoxy]-2-propylchromen-4-one