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Mostrando 1,061 - 1,080 Resultados de 4,819 Para Buscar 'Pirimidina~', tiempo de consulta: 4.52s Limitar resultados
  1. 1061
    “…The title compound, C(12)H(15)N(5)OS, was obtained by reaction of 2-(2-(methyl­thio)pyrimidin-4-yl)-3-oxopropane­nitrile with (tetra­hydro­furan-3-yl)hydrazine dihydro­chloride, and the racemic product was subsequently separated by chiral chromatography (first peak; [α](D) (20) = +51.3°). …”
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    (R)-4-[2-(Methyl­sulfanyl)pyrimidin-4-yl]-1-(tetra­hydro­furan-3-yl)-1H-pyrazol-5-amine
  2. 1062
    “…In the title compound, C(14)H(14)N(2)O(3), the dihedral angle between the pyrimidine and benzene rings is 14.9 (1)°. The mol­ecular structure is stabilized by weak intra­molecular C—H⋯O inter­actions and the crystal structure exhibits a weak inter­molecular π–π inter­action [centroid–centroid distance = 3.575 (3) Å].…”
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    1,3-Dimethyl-5-(2-methyl­benzyl­idene)pyrimidine-2,4,6(1H,3H,5H)-trione
  3. 1063
    “…In the title pyrazoline compound, C(19)H(14)BrN(5)O(2), the essentially planar pyrazoline and pyrimidine rings [maximum deviations = 0.013 (1) and 0.009 (1) Å, respectively] are inclined slightly to one another, making a dihedral angle of 10.81 (10)°. …”
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    5-Bromo-2-[5-(4-nitro­phen­yl)-3-phenyl-4,5-dihydro-1H-pyrazol-1-yl]pyrimidine
  4. 1064
    “…In the title compound, C(18)H(11)ClN(6), the pyrrole, pyrimidine and tetra­zole rings form a nearly planar fused trihetrocyclic system with an r.m.s. deviation of 0.0387 (13) Å, to which the 4-chloro­phenyl group and the phenyl group are substituted at the 7 and 9 positions, respectively. …”
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    7-(4-Chloro­phen­yl)-9-phenyl-7H-pyrrolo[3,2-e]tetra­zolo[1,5-c]pyrimidine
  5. 1065
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    7-(4-Bromo­phen­yl)-9-phenyl-7H-pyrrolo[3,2-e]tetra­zolo[1,5-c]pyrimidine
  6. 1066
    por Wang, Hong-Yun
    Publicado 2010
    “…In the crystal, inter­molecular pyrimidine–pyrimidinone N—H⋯O hydrogen bonds link the mol­ecules into centrosymmetric tetra­mers, which are further associated into ribbons extending in [010] via weak inter­molecular pyrimidine–carboxyl N—H⋯O hydrogen bonds.…”
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    Ethyl 4-(furan-2-yl)-6-methyl-2-oxo-1,2,3,4-tetra­hydro­pyrimidine-5-carboxyl­ate
  7. 1067
    “…In the title compound, C(18)H(21)N(3)O(6), a pyrimidine derivative, the dihedral angle between the benzene and pyrimidine rings is 52.26 (12)°. …”
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    Methyl 2-[2-(benzyl­oxycarbonyl­amino)­propan-2-yl]-5-hy­droxy-6-meth­oxy­pyrimidine-4-carboxyl­ate
  8. 1068
    por Xu, Hong, Sun, Hong-shun, Luo, Feng-mao
    Publicado 2011
    “…In the title compound, C(16)H(20)FN(3)O(3)S, the pyrimidine and benzene rings are oriented at a dihedral angle of 38.8 (3)°. …”
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    N-[4-(4-Fluoro­phen­yl)-5-hy­droxy­methyl-6-isopropyl­pyrimidin-2-yl]-N-methyl­methane­sulfonamide
  9. 1069
    “…The Cu(II) atom is in a distorted octa­hedral coordination geometry defined by four O atoms derived from four bridging acetate ligands, a terminally connected pyrimidine N atom and a Cu atom.…”
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    Tetra-μ-acetato-κ(8) O:O′-bis­[(2-phen­oxy­pyrimidine-κN (1))copper(II)](Cu—Cu)
  10. 1070
    “…Molecular docking, 3D-QSAR methods, CoMFA and CoMSIA were performed on pyrrolo[3,2-d]pyrimidine derivatives as non-ATP competitive KDR inhibitors (type II). …”
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    Pyrrolo[3,2-d]pyrimidine Derivatives as Type II Kinase Insert Domain Receptor (KDR) Inhibitors: CoMFA and CoMSIA Studies
  11. 1071
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    6-(2-Methyl­prop­yl)-4-oxo-2-sulfanyl­idene-1,2,3,4-tetra­hydro­pyrimidine-5-carbonitrile
  12. 1072
    por Lu, Chun-Xin
    Publicado 2012
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    Dibromidobis[1-(2-bromo­benz­yl)-3-(pyrimidin-2-yl)-1H-imidazol-2(3H)-one]copper(II)
  13. 1073
    “…The dihedral angles between the pyrimidine ring and the phenyl, fluorophenyl and ethoxyphenyl rings are 15.4 (2), 28.4 (2) and 77.5 (2)°, respectively, in mol­ecule A, and 15.9 (2), 2.7 (2) and 61.8 (2)° in mol­ecule B. …”
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    5-[(4-Eth­oxy­anilino)meth­yl]-N-(2-fluoro­phen­yl)-6-methyl-2-phenyl­pyrimidin-4-amine
  14. 1074
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    2-Dimethylamino-1-(2-ethoxy-2-oxo­ethyl)-3-methyl-3,4,5,6-tetrahydro­pyrimidin-1-ium tetraphenylborate
  15. 1075
    “…In the title compound, C(22)H(20)ClN(3)S(2), the S-bound benzene rings are inclined [dihedral angles = 78.13 (10) and 36.70 (9)°] with respect to the pyrimidine ring. The methyl­propyl group occupies a position normal to the pyrimidine ring [N—C—C—C torsion angle = 92.3 (2)°]. …”
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    2-[(4-Chloro­benz­yl)sulfan­yl]-4-(2-methyl­prop­yl)-6-(phenyl­sulfan­yl)pyrimidine-5-carbonitrile
  16. 1076
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    Structures of DNA duplexes containing O(6)-carboxymethylguanine, a lesion associated with gastrointestinal cancer, reveal a mechanism for inducing pyrimidine transition mutations
  17. 1077
    “…The title compound, C(20)H(18)N(2)O·CH(3)CN, a perimidine deriv­ative, crystallized as an aceto­nitrile monosolvate. …”
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    Crystal structure of (E)-2-(4-meth­oxy­styr­yl)-2,3-di­hydro-1H-perimidine aceto­nitrile monosolvate
  18. 1078
    “…The title compounds, 6-(2-hy­droxy­benz­yl)-5H-thia­zolo[3,2-a]pyrimidin-5-one, C(13)H(8)N(2)O(3)S, (1), and 6-(2-hy­droxy­benz­yl)-3-methyl-5H-thia­zolo[3,2-a]pyrimidin-5-one, C(14)H(10)N(2)O(3)S, (2), were synthesized when a chromone-3-carb­oxy­lic acid, activated with (benzotriazol-1-yl­oxy)tripyrrolidinyl­phospho­nium hexa­fluorido­phosphate (PyBOP), was reacted with a primary heteromamine. …”
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    Crystal structures of two 6-(2-hy­droxy­benzo­yl)-5H-thia­zolo[3,2-a]pyrimidin-5-ones
  19. 1079
    por Sheng, Yue, Sun, Bo, Xie, Xin, Li, Na, Dong, Deli
    Publicado 2015
    “…Our previous work found that DMH1 (4-[6-(4-isopropoxyphenyl)pyrazolo [1,5-a]pyrimidin-3-yl]quinoline) was a novel autophagy inhibitor. …”
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    DMH1 (4-[6-(4-isopropoxyphenyl)pyrazolo[1,5-a]pyrimidin-3-yl]quinoline) inhibits chemotherapeutic drug-induced autophagy
  20. 1080
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    Incorporating a guanidine-modified cytosine base into triplex-forming PNAs for the recognition of a C-G pyrimidine–purine inversion site of an RNA duplex
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