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    首页 分子通 按分子结构分类 有机化合物 有机杂环化合物 三唑并嘧啶类

    三唑并嘧啶类

    中文名称 英文名称 CAS号 化学式 结构式图片
    —— N-ethyl-2-[(1R,4S)-4-[7-[[(2S)-2-phenylcyclopropyl]amino]-5-propylsulfanyltriazolo[4,5-d]pyrimidin-3-yl]cyclopent-2-en-1-yl]oxyacetamide —— C25H31N7O2S
    N-ethyl-2-[(1R,4S)-4-[7-[[(2S)-2-phenylcyclopropyl]amino]-5-propylsulfanyltriazolo[4,5-d]pyrimidin-3-yl]cyclopent-2-en-1-yl]oxyacetamide
    —— 6-Cyclopentyl-3-[(5,7-dimethyl-[1,2,4]triazolo[1,5-a]pyrimidin-2-yl)sulfanyl]-6-[2-(3-fluoro-4-propan-2-yloxyphenyl)ethyl]oxane-2,4-dione —— C28H33FN4O4S
    6-Cyclopentyl-3-[(5,7-dimethyl-[1,2,4]triazolo[1,5-a]pyrimidin-2-yl)sulfanyl]-6-[2-(3-fluoro-4-propan-2-yloxyphenyl)ethyl]oxane-2,4-dione
    —— 2-carbamoyl-5-[[(1S)-5-methoxycarbonyl-2,3-dihydro-1H-inden-1-yl]carbamoyl]-[1,2,4]triazolo[1,5-a]pyrimidine-7-carboxylic acid —— C19H16N6O6
    2-carbamoyl-5-[[(1S)-5-methoxycarbonyl-2,3-dihydro-1H-inden-1-yl]carbamoyl]-[1,2,4]triazolo[1,5-a]pyrimidine-7-carboxylic acid
    —— 6-[2-(3-Chloro-4-ethoxyphenyl)ethyl]-6-cyclopentyl-3-[(5,7-dimethyl-[1,2,4]triazolo[1,5-a]pyrimidin-2-yl)methyl]oxane-2,4-dione —— C28H33ClN4O4
    6-[2-(3-Chloro-4-ethoxyphenyl)ethyl]-6-cyclopentyl-3-[(5,7-dimethyl-[1,2,4]triazolo[1,5-a]pyrimidin-2-yl)methyl]oxane-2,4-dione
    —— 6-[2-(3-Chloro-4-methoxyphenyl)ethyl]-6-cyclopentyl-3-[(7-methyl-[1,2,4]triazolo[1,5-a]pyrimidin-2-yl)sulfanyl]oxane-2,4-dione —— C25H27ClN4O4S
    6-[2-(3-Chloro-4-methoxyphenyl)ethyl]-6-cyclopentyl-3-[(7-methyl-[1,2,4]triazolo[1,5-a]pyrimidin-2-yl)sulfanyl]oxane-2,4-dione
    —— 7-N-[[3-[[(2-amino-3,4-dioxocyclobuten-1-yl)amino]methyl]phenyl]methyl]-5-N-[(1S)-5-(2H-tetrazol-5-yl)-2,3-dihydro-1H-inden-1-yl]-[1,2,4]triazolo[1,5-a]pyrimidine-2,5,7-tricarboxamide —— C30H25N13O5
    7-N-[[3-[[(2-amino-3,4-dioxocyclobuten-1-yl)amino]methyl]phenyl]methyl]-5-N-[(1S)-5-(2H-tetrazol-5-yl)-2,3-dihydro-1H-inden-1-yl]-[1,2,4]triazolo[1,5-a]pyrimidine-2,5,7-tricarboxamide
    —— 6-Cyclopentyl-6-[2-(2-ethyl-5-methoxypyridin-4-yl)ethyl]-3-[(6-methyl-[1,2,4]triazolo[1,5-a]pyrimidin-2-yl)methyl]oxane-2,4-dione —— C27H33N5O4
    6-Cyclopentyl-6-[2-(2-ethyl-5-methoxypyridin-4-yl)ethyl]-3-[(6-methyl-[1,2,4]triazolo[1,5-a]pyrimidin-2-yl)methyl]oxane-2,4-dione
    —— 4-[(1R)-1-[[3-amino-5-[(2-methyl-1,3-benzoxazol-5-yl)methylcarbamoyl]triazolo[1,5-a]pyrimidine-7-carbonyl]amino]ethyl]benzoic acid —— C25H22N8O5
    4-[(1R)-1-[[3-amino-5-[(2-methyl-1,3-benzoxazol-5-yl)methylcarbamoyl]triazolo[1,5-a]pyrimidine-7-carbonyl]amino]ethyl]benzoic acid
    —— 7-Chloro-4-methyl-5-phenyltriazolo[4,5-d]pyrimidine —— C11H8ClN5
    7-Chloro-4-methyl-5-phenyltriazolo[4,5-d]pyrimidine
    —— 3-[(6-Chloro-[1,2,4]triazolo[1,5-a]pyrimidin-2-yl)methyl]-6-cyclopentyl-6-[2-(5-ethyl-2-hydroxyphenyl)ethyl]oxane-2,4-dione —— C26H29ClN4O4
    3-[(6-Chloro-[1,2,4]triazolo[1,5-a]pyrimidin-2-yl)methyl]-6-cyclopentyl-6-[2-(5-ethyl-2-hydroxyphenyl)ethyl]oxane-2,4-dione
    —— 4-[[[7-[[3-[[(2-amino-3,4-dioxocyclobuten-1-yl)amino]methyl]-4-fluorophenyl]methylcarbamoyl]-3-sulfanylidene-2H-[1,2,4]triazolo[4,3-a]pyrimidine-5-carbonyl]amino]methyl]bicyclo[2.2.2]octane-1-carboxylic acid —— C29H29FN8O6S
    4-[[[7-[[3-[[(2-amino-3,4-dioxocyclobuten-1-yl)amino]methyl]-4-fluorophenyl]methylcarbamoyl]-3-sulfanylidene-2H-[1,2,4]triazolo[4,3-a]pyrimidine-5-carbonyl]amino]methyl]bicyclo[2.2.2]octane-1-carboxylic acid
    —— 7-(4-Cyanophenyl)-5-methyl-2-thiophen-2-yl-6,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carbonitrile —— C18H12N6S
    7-(4-Cyanophenyl)-5-methyl-2-thiophen-2-yl-6,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carbonitrile
    —— 3-(benzimidazol-2-ylidene)-2H-[1,2,4]triazolo[4,3-a]pyrimidine —— C12H8N6
    3-(benzimidazol-2-ylidene)-2H-[1,2,4]triazolo[4,3-a]pyrimidine
    —— 2-(10-Thia-3,4,6,8-tetrazatetracyclo[7.7.0.02,6.011,16]hexadeca-1(9),2,4,7,11(16)-pentaen-5-ylsulfanyl)acetonitrile —— C13H11N5S2
    2-(10-Thia-3,4,6,8-tetrazatetracyclo[7.7.0.02,6.011,16]hexadeca-1(9),2,4,7,11(16)-pentaen-5-ylsulfanyl)acetonitrile
    —— N-(5-ethyl-1,3,4-thiadiazol-2-yl)-2-(10-thia-3,4,6,8-tetrazatetracyclo[7.7.0.02,6.011,16]hexadeca-1(9),2,4,7,11(16)-pentaen-5-ylsulfanyl)acetamide —— C17H17N7OS3
    N-(5-ethyl-1,3,4-thiadiazol-2-yl)-2-(10-thia-3,4,6,8-tetrazatetracyclo[7.7.0.02,6.011,16]hexadeca-1(9),2,4,7,11(16)-pentaen-5-ylsulfanyl)acetamide
    —— 2-[(11,12-dimethyl-10-thia-3,4,6,8-tetrazatricyclo[7.3.0.02,6]dodeca-1(9),2,4,7,11-pentaen-5-yl)sulfanyl]-N-(2-methyl-5-nitrophenyl)acetamide —— C18H16N6O3S2
    2-[(11,12-dimethyl-10-thia-3,4,6,8-tetrazatricyclo[7.3.0.02,6]dodeca-1(9),2,4,7,11-pentaen-5-yl)sulfanyl]-N-(2-methyl-5-nitrophenyl)acetamide
    —— 2-[(11,12-dimethyl-10-thia-3,4,6,8-tetrazatricyclo[7.3.0.02,6]dodeca-1(9),2,4,7,11-pentaen-5-yl)sulfanyl]-N-(5-ethyl-1,3,4-thiadiazol-2-yl)acetamide —— C15H15N7OS3
    2-[(11,12-dimethyl-10-thia-3,4,6,8-tetrazatricyclo[7.3.0.02,6]dodeca-1(9),2,4,7,11-pentaen-5-yl)sulfanyl]-N-(5-ethyl-1,3,4-thiadiazol-2-yl)acetamide
    —— 2-[(11,12-dimethyl-10-thia-3,4,6,8-tetrazatricyclo[7.3.0.02,6]dodeca-1(9),2,4,7,11-pentaen-5-yl)sulfanyl]-N-(1,3-thiazol-2-yl)acetamide —— C14H12N6OS3
    2-[(11,12-dimethyl-10-thia-3,4,6,8-tetrazatricyclo[7.3.0.02,6]dodeca-1(9),2,4,7,11-pentaen-5-yl)sulfanyl]-N-(1,3-thiazol-2-yl)acetamide
    —— 2-[(11,12-dimethyl-10-thia-3,4,6,8-tetrazatricyclo[7.3.0.02,6]dodeca-1(9),2,4,7,11-pentaen-5-yl)sulfanyl]-N-(2-nitrophenyl)acetamide —— C17H14N6O3S2
    2-[(11,12-dimethyl-10-thia-3,4,6,8-tetrazatricyclo[7.3.0.02,6]dodeca-1(9),2,4,7,11-pentaen-5-yl)sulfanyl]-N-(2-nitrophenyl)acetamide
    —— 2-(10-thia-3,4,6,8-tetrazatetracyclo[7.7.0.02,6.011,16]hexadeca-1(9),2,4,7,11(16)-pentaen-5-ylsulfanyl)-N-(1,3-thiazol-2-yl)acetamide —— C16H14N6OS3
    2-(10-thia-3,4,6,8-tetrazatetracyclo[7.7.0.02,6.011,16]hexadeca-1(9),2,4,7,11(16)-pentaen-5-ylsulfanyl)-N-(1,3-thiazol-2-yl)acetamide
    —— N-(5-methyl-1,3-thiazol-2-yl)-2-(10-thia-3,4,6,8-tetrazatetracyclo[7.7.0.02,6.011,16]hexadeca-1(9),2,4,7,11(16)-pentaen-5-ylsulfanyl)acetamide —— C17H16N6OS3
    N-(5-methyl-1,3-thiazol-2-yl)-2-(10-thia-3,4,6,8-tetrazatetracyclo[7.7.0.02,6.011,16]hexadeca-1(9),2,4,7,11(16)-pentaen-5-ylsulfanyl)acetamide
    —— N-(3-cyano-4,5-dimethylthiophen-2-yl)-2-[(11,12-dimethyl-10-thia-3,4,6,8-tetrazatricyclo[7.3.0.02,6]dodeca-1(9),2,4,7,11-pentaen-5-yl)sulfanyl]acetamide —— C18H16N6OS3
    N-(3-cyano-4,5-dimethylthiophen-2-yl)-2-[(11,12-dimethyl-10-thia-3,4,6,8-tetrazatricyclo[7.3.0.02,6]dodeca-1(9),2,4,7,11-pentaen-5-yl)sulfanyl]acetamide
    —— N'-[2-(10-thia-3,4,6,8-tetrazatetracyclo[7.7.0.02,6.011,16]hexadeca-1(9),2,4,7,11(16)-pentaen-5-ylsulfanyl)acetyl]benzohydrazide —— C20H18N6O2S2
    N'-[2-(10-thia-3,4,6,8-tetrazatetracyclo[7.7.0.02,6.011,16]hexadeca-1(9),2,4,7,11(16)-pentaen-5-ylsulfanyl)acetyl]benzohydrazide
    —— N-(2,6-dimethylphenyl)-2-[(11,12-dimethyl-10-thia-3,4,6,8-tetrazatricyclo[7.3.0.02,6]dodeca-1(9),2,4,7,11-pentaen-5-yl)sulfanyl]propanamide —— C20H21N5OS2
    N-(2,6-dimethylphenyl)-2-[(11,12-dimethyl-10-thia-3,4,6,8-tetrazatricyclo[7.3.0.02,6]dodeca-1(9),2,4,7,11-pentaen-5-yl)sulfanyl]propanamide
    —— N'-[2-[(11,12-dimethyl-10-thia-3,4,6,8-tetrazatricyclo[7.3.0.02,6]dodeca-1(9),2,4,7,11-pentaen-5-yl)sulfanyl]acetyl]-4-methylbenzohydrazide —— C19H18N6O2S2
    N'-[2-[(11,12-dimethyl-10-thia-3,4,6,8-tetrazatricyclo[7.3.0.02,6]dodeca-1(9),2,4,7,11-pentaen-5-yl)sulfanyl]acetyl]-4-methylbenzohydrazide
    —— N'-[2-[(11,12-dimethyl-10-thia-3,4,6,8-tetrazatricyclo[7.3.0.02,6]dodeca-1(9),2,4,7,11-pentaen-5-yl)sulfanyl]acetyl]benzohydrazide —— C18H16N6O2S2
    N'-[2-[(11,12-dimethyl-10-thia-3,4,6,8-tetrazatricyclo[7.3.0.02,6]dodeca-1(9),2,4,7,11-pentaen-5-yl)sulfanyl]acetyl]benzohydrazide
    —— N-(3-cyano-4,5-dimethylthiophen-2-yl)-2-(10-thia-3,4,6,8-tetrazatetracyclo[7.7.0.02,6.011,16]hexadeca-1(9),2,4,7,11(16)-pentaen-5-ylsulfanyl)acetamide —— C20H18N6OS3
    N-(3-cyano-4,5-dimethylthiophen-2-yl)-2-(10-thia-3,4,6,8-tetrazatetracyclo[7.7.0.02,6.011,16]hexadeca-1(9),2,4,7,11(16)-pentaen-5-ylsulfanyl)acetamide
    —— N-(4-chloro-3-nitrophenyl)-2-[(11,12-dimethyl-10-thia-3,4,6,8-tetrazatricyclo[7.3.0.02,6]dodeca-1(9),2,4,7,11-pentaen-5-yl)sulfanyl]acetamide —— C17H13ClN6O3S2
    N-(4-chloro-3-nitrophenyl)-2-[(11,12-dimethyl-10-thia-3,4,6,8-tetrazatricyclo[7.3.0.02,6]dodeca-1(9),2,4,7,11-pentaen-5-yl)sulfanyl]acetamide
    —— Ethyl 2-[[2-[(11,12-dimethyl-10-thia-3,4,6,8-tetrazatricyclo[7.3.0.02,6]dodeca-1(9),2,4,7,11-pentaen-5-yl)sulfanyl]acetyl]amino]-4,5,6,7-tetrahydro-1-benzothiophene-3-carboxylate —— C22H23N5O3S3
    Ethyl 2-[[2-[(11,12-dimethyl-10-thia-3,4,6,8-tetrazatricyclo[7.3.0.02,6]dodeca-1(9),2,4,7,11-pentaen-5-yl)sulfanyl]acetyl]amino]-4,5,6,7-tetrahydro-1-benzothiophene-3-carboxylate
    —— 4-methyl-N'-[2-(10-thia-3,4,6,8-tetrazatetracyclo[7.7.0.02,6.011,16]hexadeca-1(9),2,4,7,11(16)-pentaen-5-ylsulfanyl)acetyl]benzohydrazide —— C21H20N6O2S2
    4-methyl-N'-[2-(10-thia-3,4,6,8-tetrazatetracyclo[7.7.0.02,6.011,16]hexadeca-1(9),2,4,7,11(16)-pentaen-5-ylsulfanyl)acetyl]benzohydrazide
    —— N-(3-Chlorophenyl)-2-(8,9,10,11-tetrahydro[1]benzothieno[3,2-E][1,2,4]triazolo[4,3-C]pyrimidin-3-ylsulfanyl)acetamide —— C19H16ClN5OS2
    N-(3-Chlorophenyl)-2-(8,9,10,11-tetrahydro[1]benzothieno[3,2-E][1,2,4]triazolo[4,3-C]pyrimidin-3-ylsulfanyl)acetamide
    —— 2-[(11,12-dimethyl-10-thia-3,4,6,8-tetrazatricyclo[7.3.0.02,6]dodeca-1(9),2,4,7,11-pentaen-5-yl)sulfanyl]-N-(2-methyl-4-nitrophenyl)acetamide —— C18H16N6O3S2
    2-[(11,12-dimethyl-10-thia-3,4,6,8-tetrazatricyclo[7.3.0.02,6]dodeca-1(9),2,4,7,11-pentaen-5-yl)sulfanyl]-N-(2-methyl-4-nitrophenyl)acetamide
    —— 2-[(11,12-dimethyl-10-thia-3,4,6,8-tetrazatricyclo[7.3.0.02,6]dodeca-1(9),2,4,7,11-pentaen-5-yl)sulfanyl]-N-prop-2-enylacetamide —— C14H15N5OS2
    2-[(11,12-dimethyl-10-thia-3,4,6,8-tetrazatricyclo[7.3.0.02,6]dodeca-1(9),2,4,7,11-pentaen-5-yl)sulfanyl]-N-prop-2-enylacetamide
    —— 2-[(11,12-dimethyl-10-thia-3,4,6,8-tetrazatricyclo[7.3.0.02,6]dodeca-1(9),2,4,7,11-pentaen-5-yl)sulfanyl]-N-(4-nitrophenyl)acetamide —— C17H14N6O3S2
    2-[(11,12-dimethyl-10-thia-3,4,6,8-tetrazatricyclo[7.3.0.02,6]dodeca-1(9),2,4,7,11-pentaen-5-yl)sulfanyl]-N-(4-nitrophenyl)acetamide
    —— 6-Cyclopentyl-6-[2-(3-cyclopentyl-4-hydroxyphenyl)ethyl]-3-[(5,7-dimethyl-[1,2,4]triazolo[1,5-a]pyrimidin-2-yl)methyl]oxane-2,4-dione —— C31H38N4O4
    6-Cyclopentyl-6-[2-(3-cyclopentyl-4-hydroxyphenyl)ethyl]-3-[(5,7-dimethyl-[1,2,4]triazolo[1,5-a]pyrimidin-2-yl)methyl]oxane-2,4-dione
    —— 6-Cyclopentyl-3-[(5,7-dimethyl-[1,2,4]triazolo[1,5-a]pyrimidin-2-yl)methyl]-6-[2-(3-ethyl-4-methylphenyl)ethyl]oxane-2,4-dione —— C29H36N4O3
    6-Cyclopentyl-3-[(5,7-dimethyl-[1,2,4]triazolo[1,5-a]pyrimidin-2-yl)methyl]-6-[2-(3-ethyl-4-methylphenyl)ethyl]oxane-2,4-dione
    —— N-(furan-2-yl)-[1,2,4]triazolo[1,5-c]pyrimidin-5-amine —— C9H7N5O
    N-(furan-2-yl)-[1,2,4]triazolo[1,5-c]pyrimidin-5-amine
    —— 6-Cyclopentyl-6-[2-[3-ethyl-4-(pyrazol-1-ylmethyl)phenyl]ethyl]-3-[(6-methyl-[1,2,4]triazolo[1,5-a]pyrimidin-2-yl)methyl]oxane-2,4-dione —— C31H36N6O3
    6-Cyclopentyl-6-[2-[3-ethyl-4-(pyrazol-1-ylmethyl)phenyl]ethyl]-3-[(6-methyl-[1,2,4]triazolo[1,5-a]pyrimidin-2-yl)methyl]oxane-2,4-dione
    —— N-cyclohexyl-3-[(6,7-dioxo-2-phenyl-1,3a,4,5-tetrahydro-[1,2,4]triazolo[1,5-a]pyrimidin-5-yl)methoxy]-2-ethylidene-N-methylhexa-3,5-dienamide —— C27H33N5O4
    N-cyclohexyl-3-[(6,7-dioxo-2-phenyl-1,3a,4,5-tetrahydro-[1,2,4]triazolo[1,5-a]pyrimidin-5-yl)methoxy]-2-ethylidene-N-methylhexa-3,5-dienamide
    —— 2-(2-Pyrazinyl)-8,9,10,11-tetrahydro[1]benzothieno[3,2-E][1,2,4]triazolo[1,5-C]pyrimidine —— C15H12N6S
    2-(2-Pyrazinyl)-8,9,10,11-tetrahydro[1]benzothieno[3,2-E][1,2,4]triazolo[1,5-C]pyrimidine
    —— 2-(2-Pyrazinyl)-8,9,10,11,12,13-hexahydrocycloocta[4,5]thieno[3,2-E][1,2,4]triazolo[1,5-C]pyrimidine —— C17H16N6S
    2-(2-Pyrazinyl)-8,9,10,11,12,13-hexahydrocycloocta[4,5]thieno[3,2-E][1,2,4]triazolo[1,5-C]pyrimidine
    —— 5-amino-7-(4-methoxyphenyl)-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carbonitrile —— C13H12N6O
    5-amino-7-(4-methoxyphenyl)-1,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carbonitrile
    —— 8H-Cyclopenta[4,5]thieno[3,2-e][1,2,4]triazolo[1,5-c]pyrimidine, 9,10-dihydro-2-(2-pyrazinyl)- —— C14H10N6S
    8H-Cyclopenta[4,5]thieno[3,2-e][1,2,4]triazolo[1,5-c]pyrimidine, 9,10-dihydro-2-(2-pyrazinyl)-
    —— 2-[5-(4-Pyridyl)-1H-pyrazol-3-YL]-8,9-dihydro-7H-cyclopenta[E][1,2,4]triazolo[1,5-C]pyrimidine —— C16H13N7
    2-[5-(4-Pyridyl)-1H-pyrazol-3-YL]-8,9-dihydro-7H-cyclopenta[E][1,2,4]triazolo[1,5-C]pyrimidine
    —— 2-(5-ethyl-4-methyl-1H-pyrazol-3-yl)-8,9,10,11-tetrahydro[1]benzothieno[3,2-e][1,2,4]triazolo[1,5-c]pyrimidine —— C17H18N6S
    2-(5-ethyl-4-methyl-1H-pyrazol-3-yl)-8,9,10,11-tetrahydro[1]benzothieno[3,2-e][1,2,4]triazolo[1,5-c]pyrimidine
    —— (1S)-1-[[7-[[3-[[(2-amino-3,4-dioxocyclobuten-1-yl)amino]methyl]phenyl]methylcarbamoyl]-[1,2,4]triazolo[1,5-a]pyrimidine-5-carbonyl]amino]-4-methyl-2,3-dihydro-1H-indene-5-carboxylic acid —— C30H26N8O6
    (1S)-1-[[7-[[3-[[(2-amino-3,4-dioxocyclobuten-1-yl)amino]methyl]phenyl]methylcarbamoyl]-[1,2,4]triazolo[1,5-a]pyrimidine-5-carbonyl]amino]-4-methyl-2,3-dihydro-1H-indene-5-carboxylic acid
    —— 3,4-Diethoxy-N-{7-hydroxy-5-methyl-[1,2,4]triazolo[1,5-A]pyrimidin-6-YL}benzamide —— C17H19N5O4
    3,4-Diethoxy-N-{7-hydroxy-5-methyl-[1,2,4]triazolo[1,5-A]pyrimidin-6-YL}benzamide
    —— 2-[5-(3-Thienyl)-1H-pyrazol-3-YL]-8,9-dihydro-7H-cyclopenta[E][1,2,4]triazolo[1,5-C]pyrimidine —— C15H12N6S
    2-[5-(3-Thienyl)-1H-pyrazol-3-YL]-8,9-dihydro-7H-cyclopenta[E][1,2,4]triazolo[1,5-C]pyrimidine
    —— 8H-Cyclopenta[4,5]thieno[3,2-e][1,2,4]triazolo[1,5-c]pyrimidine, 9,10-dihydro-2-(2-thienyl)- —— C14H10N4S2
    8H-Cyclopenta[4,5]thieno[3,2-e][1,2,4]triazolo[1,5-c]pyrimidine, 9,10-dihydro-2-(2-thienyl)-
    —— 5-Amino-2-(trifluoromethyl)[1,2,4]triazolo[1,5-a]pyrimidine-6-carbonitrile —— C7H3F3N6
    5-Amino-2-(trifluoromethyl)[1,2,4]triazolo[1,5-a]pyrimidine-6-carbonitrile