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    —— 7-[(2S)-3-(4-bromophenoxy)-2-hydroxypropyl]-8-[(2Z)-2-[(4-bromophenyl)methylidene]hydrazinyl]-3-methylpurine-2,6-dione —— C22H20Br2N6O4
    7-[(2S)-3-(4-bromophenoxy)-2-hydroxypropyl]-8-[(2Z)-2-[(4-bromophenyl)methylidene]hydrazinyl]-3-methylpurine-2,6-dione
    —— 7-Methyl-9-phenyl-1,2,3,6,8,9-hexahydropyrrolo[3,2-f]isoquinoline —— C18H20N2
    7-Methyl-9-phenyl-1,2,3,6,8,9-hexahydropyrrolo[3,2-f]isoquinoline
    —— 7-[(2R)-3-(4-bromophenoxy)-2-hydroxypropyl]-3-methyl-8-[2-(2-oxoindol-3-yl)hydrazinyl]purine-2,6-dione —— C23H20BrN7O5
    7-[(2R)-3-(4-bromophenoxy)-2-hydroxypropyl]-3-methyl-8-[2-(2-oxoindol-3-yl)hydrazinyl]purine-2,6-dione
    —— 7-[(2S,3S,4R,5R)-2-amino-3,4-dihydroxy-5-methylpyrrolidin-2-yl]-3,5-dihydropyrrolo[3,2-d]pyrimidin-4-one —— C11H15N5O3
    7-[(2S,3S,4R,5R)-2-amino-3,4-dihydroxy-5-methylpyrrolidin-2-yl]-3,5-dihydropyrrolo[3,2-d]pyrimidin-4-one
    —— 7-[(2R)-3-(4-bromophenoxy)-2-hydroxypropyl]-8-[(2Z)-2-[(4-bromophenyl)methylidene]hydrazinyl]-3-methylpurine-2,6-dione —— C22H20Br2N6O4
    7-[(2R)-3-(4-bromophenoxy)-2-hydroxypropyl]-8-[(2Z)-2-[(4-bromophenyl)methylidene]hydrazinyl]-3-methylpurine-2,6-dione
    —— (7R)-1-ethyl-5-(1H-indole-5-carbonyl)-6,7-dihydro-4H-imidazo[4,5-c]pyridine-7-carboxylic acid —— C18H18N4O3
    (7R)-1-ethyl-5-(1H-indole-5-carbonyl)-6,7-dihydro-4H-imidazo[4,5-c]pyridine-7-carboxylic acid
    —— 7-Ethoxyfuro[2,3-b]pyrazine-6-carboxylic acid —— C9H8N2O4
    7-Ethoxyfuro[2,3-b]pyrazine-6-carboxylic acid
    —— (7R,8S)-7-(dimethylamino)-7,8,9,10-tetrahydroimidazo[1,2-h][1,7]naphthyridin-8-ol —— C12H16N4O
    (7R,8S)-7-(dimethylamino)-7,8,9,10-tetrahydroimidazo[1,2-h][1,7]naphthyridin-8-ol
    —— (7S)-1-ethyl-5-(1H-indole-5-carbonyl)-6,7-dihydro-4H-imidazo[4,5-c]pyridine-7-carboxylic acid —— C18H18N4O3
    (7S)-1-ethyl-5-(1H-indole-5-carbonyl)-6,7-dihydro-4H-imidazo[4,5-c]pyridine-7-carboxylic acid
    —— 7-[(2S)-3-(4-bromophenoxy)-2-hydroxypropyl]-3-methyl-8-[2-(2-oxoindol-3-yl)hydrazinyl]purine-2,6-dione —— C23H20BrN7O5
    7-[(2S)-3-(4-bromophenoxy)-2-hydroxypropyl]-3-methyl-8-[2-(2-oxoindol-3-yl)hydrazinyl]purine-2,6-dione
    —— (7S,9S)-9-acetyl-7-[(2R,4S,5S,6S)-4-[4-[(2S,3S,6R)-6-[[(1S,3S)-3-acetyl-3,5,12-trihydroxy-10-methoxy-6,11-dioxo-2,4-dihydro-1H-tetracen-1-yl]oxy]-3-hydroxy-2-methyloxan-4-yl]piperazin-1-yl]-5-hydroxy-6-methyloxan-2-yl]oxy-6,9,11-trihydroxy-4-methoxy-8,10-dihydro-7H-tetracene-5,12-dione —— C58H62N2O20
    (7S,9S)-9-acetyl-7-[(2R,4S,5S,6S)-4-[4-[(2S,3S,6R)-6-[[(1S,3S)-3-acetyl-3,5,12-trihydroxy-10-methoxy-6,11-dioxo-2,4-dihydro-1H-tetracen-1-yl]oxy]-3-hydroxy-2-methyloxan-4-yl]piperazin-1-yl]-5-hydroxy-6-methyloxan-2-yl]oxy-6,9,11-trihydroxy-4-methoxy-8,10-dihydro-7H-tetracene-5,12-dione
    —— (7S)-9-(3,5-dimethylphenyl)-3-heptyl-1,7-dimethyl-7,8-dihydro-6H-purino[7,8-a]pyrimidine-2,4-dione —— C25H35N5O2
    (7S)-9-(3,5-dimethylphenyl)-3-heptyl-1,7-dimethyl-7,8-dihydro-6H-purino[7,8-a]pyrimidine-2,4-dione
    —— (7R)-9-(3,5-dimethylphenyl)-3-heptyl-1,7-dimethyl-7,8-dihydro-6H-purino[7,8-a]pyrimidine-2,4-dione —— C25H35N5O2
    (7R)-9-(3,5-dimethylphenyl)-3-heptyl-1,7-dimethyl-7,8-dihydro-6H-purino[7,8-a]pyrimidine-2,4-dione
    —— (7S,9S)-9-acetyl-7-[(2R,4S,5S,6S)-4-amino-5-hydroxy-6-methyloxan-2-yl]oxy-6,9,11-trihydroxy-4-methoxy-8,10-dihydro-7H-tetracene-5,12-dione;methyl 11-[5-[(E)-3-oxobut-1-enyl]furan-2-yl]undec-10-ynoate —— C47H55NO14
    (7S,9S)-9-acetyl-7-[(2R,4S,5S,6S)-4-amino-5-hydroxy-6-methyloxan-2-yl]oxy-6,9,11-trihydroxy-4-methoxy-8,10-dihydro-7H-tetracene-5,12-dione;methyl 11-[5-[(E)-3-oxobut-1-enyl]furan-2-yl]undec-10-ynoate
    —— (7S,9S)-7-[(2R,4S,5S,6S)-4-amino-5-hydroxy-6-methyloxan-2-yl]oxy-6,9,11-trihydroxy-9-(2-hydroxyacetyl)-4-methoxy-8,10-dihydro-7H-tetracene-5,12-dione;2-(4-methylphenyl)-5,6,7,8-tetrahydroimidazo[2,1-b][1,3]benzothiazole —— C43H45N3O11S
    (7S,9S)-7-[(2R,4S,5S,6S)-4-amino-5-hydroxy-6-methyloxan-2-yl]oxy-6,9,11-trihydroxy-9-(2-hydroxyacetyl)-4-methoxy-8,10-dihydro-7H-tetracene-5,12-dione;2-(4-methylphenyl)-5,6,7,8-tetrahydroimidazo[2,1-b][1,3]benzothiazole
    —— (7S,9S)-7-[(2R,4S,5S,6S)-4-amino-5-hydroxy-6-methyloxan-2-yl]oxy-6,9,11-trihydroxy-9-(2-hydroxyacetyl)-4-methoxy-8,10-dihydro-7H-tetracene-5,12-dione;butanoyloxymethyl 2,2-dimethylpropanoate;hydrochloride —— C37H48ClNO15
    (7S,9S)-7-[(2R,4S,5S,6S)-4-amino-5-hydroxy-6-methyloxan-2-yl]oxy-6,9,11-trihydroxy-9-(2-hydroxyacetyl)-4-methoxy-8,10-dihydro-7H-tetracene-5,12-dione;butanoyloxymethyl 2,2-dimethylpropanoate;hydrochloride
    —— (7S)-3-[(2-chlorophenyl)methyl]-1,7-dimethyl-9-(4-phenoxyphenyl)-7,8-dihydro-6H-purino[7,8-a]pyrimidine-2,4-dione —— C29H26ClN5O3
    (7S)-3-[(2-chlorophenyl)methyl]-1,7-dimethyl-9-(4-phenoxyphenyl)-7,8-dihydro-6H-purino[7,8-a]pyrimidine-2,4-dione
    —— 7-[(8-methyl-3-(morpholin-4-ylcarbonylmethyl)-4(3H)-quinazolinon-2-yl)methyl]-16-[(2-isopropylphenylaminocarbonyl)methyl]-1,4,10,13-tetraoxa-7,16-diazacyclooctadecane 333406-71-6 C39H56N6O8
    7-[(8-methyl-3-(morpholin-4-ylcarbonylmethyl)-4(3H)-quinazolinon-2-yl)methyl]-16-[(2-isopropylphenylaminocarbonyl)methyl]-1,4,10,13-tetraoxa-7,16-diazacyclooctadecane
    —— (7S)-9-(4-benzylphenyl)-1,7-dimethyl-3-(naphthalen-1-ylmethyl)-7,8-dihydro-6H-purino[7,8-a]pyrimidine-2,4-dione —— C34H31N5O2
    (7S)-9-(4-benzylphenyl)-1,7-dimethyl-3-(naphthalen-1-ylmethyl)-7,8-dihydro-6H-purino[7,8-a]pyrimidine-2,4-dione
    —— (7S)-7-(methoxymethyl)-1-(oxan-4-ylmethyl)-5-propyl-6,7-dihydro-4H-pyrazolo[4,3-c]pyridine —— C17H29N3O2
    (7S)-7-(methoxymethyl)-1-(oxan-4-ylmethyl)-5-propyl-6,7-dihydro-4H-pyrazolo[4,3-c]pyridine
    —— (7R)-7-(methoxymethyl)-1-(oxan-4-ylmethyl)-5-propyl-6,7-dihydro-4H-pyrazolo[4,3-c]pyridine —— C17H29N3O2
    (7R)-7-(methoxymethyl)-1-(oxan-4-ylmethyl)-5-propyl-6,7-dihydro-4H-pyrazolo[4,3-c]pyridine
    —— 7-(3-methoxybenzoyl)-5,6,8,9-tetrahydro-1H-pyrido[2,3-d]azepin-2-one —— C17H18N2O3
    7-(3-methoxybenzoyl)-5,6,8,9-tetrahydro-1H-pyrido[2,3-d]azepin-2-one
    —— (7S,9S)-9-acetyl-6,9,11-trihydroxy-7-[(2R,4S,5S,6S)-5-hydroxy-6-methyl-4-[(3-nitrophenyl)methylamino]oxan-2-yl]oxy-4-methoxy-8,10-dihydro-7H-tetracene-5,12-dione —— C34H34N2O12
    (7S,9S)-9-acetyl-6,9,11-trihydroxy-7-[(2R,4S,5S,6S)-5-hydroxy-6-methyl-4-[(3-nitrophenyl)methylamino]oxan-2-yl]oxy-4-methoxy-8,10-dihydro-7H-tetracene-5,12-dione
    —— (7R,10aS)-9-ethyl-2-(1H-pyrrole-2-carbonyl)-1,3,4,6,7,8,10,10a-octahydropyrazino[1,2-a][1,4]diazepine-7-carboxylic acid —— C16H24N4O3
    (7R,10aS)-9-ethyl-2-(1H-pyrrole-2-carbonyl)-1,3,4,6,7,8,10,10a-octahydropyrazino[1,2-a][1,4]diazepine-7-carboxylic acid
    —— (7R,17R)-17-[2-[4-(diethylaminomethyl)-2-methoxyphenoxy]ethyl]-7,13-dimethyl-6,7,8,9,11,12,14,15,16,17-decahydrocyclopenta[a]phenanthren-3-ol —— C33H47NO3
    (7R,17R)-17-[2-[4-(diethylaminomethyl)-2-methoxyphenoxy]ethyl]-7,13-dimethyl-6,7,8,9,11,12,14,15,16,17-decahydrocyclopenta[a]phenanthren-3-ol
    —— 7-[(3R,5aR,5bR,11aS,13bS)-5a,5b,8,8,11a,13b-hexamethyl-1,2,3,3a,4,5,6,7,7a,9,10,11,11b,12,13,13a-hexadecahydrocyclopenta[a]chrysen-3-yl]-1-[3-amino-4,5-dihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyoctane-2,3,4-triol —— C41H73NO8
    7-[(3R,5aR,5bR,11aS,13bS)-5a,5b,8,8,11a,13b-hexamethyl-1,2,3,3a,4,5,6,7,7a,9,10,11,11b,12,13,13a-hexadecahydrocyclopenta[a]chrysen-3-yl]-1-[3-amino-4,5-dihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyoctane-2,3,4-triol
    —— (7R)-7-[[(2Z)-2-(2-amino-5-chloro-1,3-thiazol-4-yl)-2-hydroxyiminoacetyl]amino]-3-[[2-amino-4-[2-(diaminomethylideneamino)ethylsulfanylmethyl]-1,3-thiazol-5-yl]sulfanyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid —— C19H21ClN10O5S5
    (7R)-7-[[(2Z)-2-(2-amino-5-chloro-1,3-thiazol-4-yl)-2-hydroxyiminoacetyl]amino]-3-[[2-amino-4-[2-(diaminomethylideneamino)ethylsulfanylmethyl]-1,3-thiazol-5-yl]sulfanyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
    —— (7S)-9-(4-methoxyphenyl)-1,7-dimethyl-3-octyl-7,8-dihydro-6H-purino[7,8-a]pyrimidine-2,4-dione —— C25H35N5O3
    (7S)-9-(4-methoxyphenyl)-1,7-dimethyl-3-octyl-7,8-dihydro-6H-purino[7,8-a]pyrimidine-2,4-dione
    —— (7R)-9-(4-methoxyphenyl)-1,7-dimethyl-3-octyl-7,8-dihydro-6H-purino[7,8-a]pyrimidine-2,4-dione —— C25H35N5O3
    (7R)-9-(4-methoxyphenyl)-1,7-dimethyl-3-octyl-7,8-dihydro-6H-purino[7,8-a]pyrimidine-2,4-dione
    —— (7R)-9-(4-benzylphenyl)-1,7-dimethyl-3-(naphthalen-1-ylmethyl)-7,8-dihydro-6H-purino[7,8-a]pyrimidine-2,4-dione —— C34H31N5O2
    (7R)-9-(4-benzylphenyl)-1,7-dimethyl-3-(naphthalen-1-ylmethyl)-7,8-dihydro-6H-purino[7,8-a]pyrimidine-2,4-dione
    —— (7S,9R,10R)-7-[4-amino-5-(4,5-dihydroxy-6-methyloxan-2-yl)oxy-6-methyloxan-2-yl]oxy-9-ethyl-4,6,9,10,11-pentahydroxy-8,10-dihydro-7H-tetracene-5,12-dione —— C32H39NO13
    (7S,9R,10R)-7-[4-amino-5-(4,5-dihydroxy-6-methyloxan-2-yl)oxy-6-methyloxan-2-yl]oxy-9-ethyl-4,6,9,10,11-pentahydroxy-8,10-dihydro-7H-tetracene-5,12-dione
    —— (7R)-3-heptyl-9-(3-methoxyphenyl)-1,7-dimethyl-7,8-dihydro-6H-purino[7,8-a]pyrimidine-2,4-dione —— C24H33N5O3
    (7R)-3-heptyl-9-(3-methoxyphenyl)-1,7-dimethyl-7,8-dihydro-6H-purino[7,8-a]pyrimidine-2,4-dione
    —— (7R)-9-(4-ethoxyphenyl)-1,7-dimethyl-3-nonyl-7,8-dihydro-6H-purino[7,8-a]pyrimidine-2,4-dione —— C27H39N5O3
    (7R)-9-(4-ethoxyphenyl)-1,7-dimethyl-3-nonyl-7,8-dihydro-6H-purino[7,8-a]pyrimidine-2,4-dione
    —— (7S,9S)-9-(1,2-dihydroxyethyl)-6,9,11-trihydroxy-7-[(2R,4S,5S,6S)-5-hydroxy-4-(2-methoxymorpholin-4-yl)-6-methyloxan-2-yl]oxy-4-methoxy-8,10-dihydro-7H-tetracene-5,12-dione —— C32H39NO13
    (7S,9S)-9-(1,2-dihydroxyethyl)-6,9,11-trihydroxy-7-[(2R,4S,5S,6S)-5-hydroxy-4-(2-methoxymorpholin-4-yl)-6-methyloxan-2-yl]oxy-4-methoxy-8,10-dihydro-7H-tetracene-5,12-dione
    —— 7-[[(2Z)-2-(2-amino-1,3-thiazol-4-yl)-2-(2-carboxypropan-2-yloxyimino)acetyl]amino]-8-oxo-3-[(1,4,6-triamino-5-methylpyrimidin-1-ium-2-yl)sulfanylmethyl]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid —— C22H27N10O7S3+
    7-[[(2Z)-2-(2-amino-1,3-thiazol-4-yl)-2-(2-carboxypropan-2-yloxyimino)acetyl]amino]-8-oxo-3-[(1,4,6-triamino-5-methylpyrimidin-1-ium-2-yl)sulfanylmethyl]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
    —— (7S,9S)-9-acetyl-7-[(2R,4S,5S,6S)-4-[(4-aminophenyl)methylamino]-5-hydroxy-6-methyloxan-2-yl]oxy-6,9,11-trihydroxy-8,10-dihydro-7H-tetracene-5,12-dione;dihydrochloride —— C33H36Cl2N2O9
    (7S,9S)-9-acetyl-7-[(2R,4S,5S,6S)-4-[(4-aminophenyl)methylamino]-5-hydroxy-6-methyloxan-2-yl]oxy-6,9,11-trihydroxy-8,10-dihydro-7H-tetracene-5,12-dione;dihydrochloride
    —— (7S,9S)-9-acetyl-7-[(2R,4S,5S,6S)-4-amino-5-[(2S,4S,5S,6S)-4-amino-5-hydroxy-4,6-dimethyloxan-2-yl]oxy-6-methyloxan-2-yl]oxy-6,9,11-trihydroxy-4-methoxy-8,10-dihydro-7H-tetracene-5,12-dione —— C34H42N2O12
    (7S,9S)-9-acetyl-7-[(2R,4S,5S,6S)-4-amino-5-[(2S,4S,5S,6S)-4-amino-5-hydroxy-4,6-dimethyloxan-2-yl]oxy-6-methyloxan-2-yl]oxy-6,9,11-trihydroxy-4-methoxy-8,10-dihydro-7H-tetracene-5,12-dione
    —— (7S,9S)-9-acetyl-7-[(2R,4S,5S,6S)-4-amino-5-[(4-fluorophenyl)methoxy]-6-methyloxan-2-yl]oxy-6,9,11-trihydroxy-8,10-dihydro-7H-tetracene-5,12-dione —— C33H32FNO9
    (7S,9S)-9-acetyl-7-[(2R,4S,5S,6S)-4-amino-5-[(4-fluorophenyl)methoxy]-6-methyloxan-2-yl]oxy-6,9,11-trihydroxy-8,10-dihydro-7H-tetracene-5,12-dione
    —— 7-[[(2Z)-2-(5-amino-1,2,4-thiadiazol-3-yl)-2-(fluoromethoxyimino)acetyl]amino]-3-[[1-[3-(2-hydroxyethylamino)propyl]imidazo[4,5-b]pyridin-4-ium-4-yl]methyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate —— C24H27FN10O6S2
    7-[[(2Z)-2-(5-amino-1,2,4-thiadiazol-3-yl)-2-(fluoromethoxyimino)acetyl]amino]-3-[[1-[3-(2-hydroxyethylamino)propyl]imidazo[4,5-b]pyridin-4-ium-4-yl]methyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate
    —— (7S,9R,10R)-7-[4-amino-5-(5-hydroxy-6-methyloxan-2-yl)oxy-6-methyloxan-2-yl]oxy-9-ethyl-4,6,9,10,11-pentahydroxy-8,10-dihydro-7H-tetracene-5,12-dione —— C32H39NO12
    (7S,9R,10R)-7-[4-amino-5-(5-hydroxy-6-methyloxan-2-yl)oxy-6-methyloxan-2-yl]oxy-9-ethyl-4,6,9,10,11-pentahydroxy-8,10-dihydro-7H-tetracene-5,12-dione
    —— 7-[4-[3-(2-chloro-3,6-difluorophenoxy)propyl]phenyl]-N-cyclopropyl-N-[(3-methoxy-2-methylphenyl)methyl]-3-oxa-9-azabicyclo[3.3.1]non-6-ene-6-carboxamide —— C35H37ClF2N2O4
    7-[4-[3-(2-chloro-3,6-difluorophenoxy)propyl]phenyl]-N-cyclopropyl-N-[(3-methoxy-2-methylphenyl)methyl]-3-oxa-9-azabicyclo[3.3.1]non-6-ene-6-carboxamide
    —— (7R)-1,7-dimethyl-9-(4-methylphenyl)-3-octyl-7,8-dihydro-6H-purino[7,8-a]pyrimidine-2,4-dione —— C25H35N5O2
    (7R)-1,7-dimethyl-9-(4-methylphenyl)-3-octyl-7,8-dihydro-6H-purino[7,8-a]pyrimidine-2,4-dione
    —— (7S)-3-heptyl-9-(3-methoxyphenyl)-1,7-dimethyl-7,8-dihydro-6H-purino[7,8-a]pyrimidine-2,4-dione —— C24H33N5O3
    (7S)-3-heptyl-9-(3-methoxyphenyl)-1,7-dimethyl-7,8-dihydro-6H-purino[7,8-a]pyrimidine-2,4-dione
    —— (7S)-9-(4-ethoxyphenyl)-1,7-dimethyl-3-nonyl-7,8-dihydro-6H-purino[7,8-a]pyrimidine-2,4-dione —— C27H39N5O3
    (7S)-9-(4-ethoxyphenyl)-1,7-dimethyl-3-nonyl-7,8-dihydro-6H-purino[7,8-a]pyrimidine-2,4-dione
    —— (7S)-1,7-dimethyl-9-(4-methylphenyl)-3-octyl-7,8-dihydro-6H-purino[7,8-a]pyrimidine-2,4-dione —— C25H35N5O2
    (7S)-1,7-dimethyl-9-(4-methylphenyl)-3-octyl-7,8-dihydro-6H-purino[7,8-a]pyrimidine-2,4-dione
    —— (7R)-3-heptyl-1,7-dimethyl-9-(3-methylphenyl)-7,8-dihydro-6H-purino[7,8-a]pyrimidine-2,4-dione —— C24H33N5O2
    (7R)-3-heptyl-1,7-dimethyl-9-(3-methylphenyl)-7,8-dihydro-6H-purino[7,8-a]pyrimidine-2,4-dione
    —— (7S)-3-heptyl-1,7-dimethyl-9-(3-methylphenyl)-7,8-dihydro-6H-purino[7,8-a]pyrimidine-2,4-dione —— C24H33N5O2
    (7S)-3-heptyl-1,7-dimethyl-9-(3-methylphenyl)-7,8-dihydro-6H-purino[7,8-a]pyrimidine-2,4-dione
    —— (7R)-1,7-dimethyl-9-(4-methylphenyl)-3-nonyl-7,8-dihydro-6H-purino[7,8-a]pyrimidine-2,4-dione —— C26H37N5O2
    (7R)-1,7-dimethyl-9-(4-methylphenyl)-3-nonyl-7,8-dihydro-6H-purino[7,8-a]pyrimidine-2,4-dione
    —— (7S)-1,7-dimethyl-9-(3-methylphenyl)-3-octyl-7,8-dihydro-6H-purino[7,8-a]pyrimidine-2,4-dione —— C25H35N5O2
    (7S)-1,7-dimethyl-9-(3-methylphenyl)-3-octyl-7,8-dihydro-6H-purino[7,8-a]pyrimidine-2,4-dione
    —— (7S)-1,7-dimethyl-9-(4-methylphenyl)-3-nonyl-7,8-dihydro-6H-purino[7,8-a]pyrimidine-2,4-dione —— C26H37N5O2
    (7S)-1,7-dimethyl-9-(4-methylphenyl)-3-nonyl-7,8-dihydro-6H-purino[7,8-a]pyrimidine-2,4-dione