N4,N6-Dimethyl-5-nitro-N4,N6-diphenylpyrimidine-4,6-diamine
نویسندگان
چکیده
منابع مشابه
N 4,N 6-Dimethyl-5-nitro-N 4,N 6-diphenylpyrimidine-4,6-diamine
In the title compound, C(18)H(17)N(5)O(2), the pyrimidine ring makes dihedral angles of 66.09 (12), 71.39 (13) and 56.7 (3)° with two phenyl rings and the nitro group, respectively. The dihedral angle between the two phenyl rings is 44.05 (14)°.
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In the mol-ecule of the title compound, C(9)H(9)N(3)O(2), the indazole ring system is almost planar [maximum deviation = 0.019 (3) Å for the C atom bearing the nitro group]. In the crystal structure, inter-molecular C-H⋯O inter-actions link the mol-ecules into centrosymmetric dimers, forming R(2) (2)(18) ring motifs. Aromatic π-π contacts between indazole rings [centroid-centroid distances = 3....
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In the title compound, C12H10N4O2, the dihedral angle between the aromatic rings is 43.18 (16)°. The nitro group is rotated from its attached ring by 7.8 (2)° and a short intra-molecular N-H⋯N contact occurs. In the crystal, the mol-ecules are linked by N-H⋯N and C-H⋯O hydrogen bonds, generating a three-dimensional network.
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In the title compound, C19H22N2O4, the six-membered cyclo-hexenone ring of the chromene unit adopts an envelope conformation, with the dimethyl-substituted C atom as the flap, while the pyran ring has a boat conformation. These two mean planes are inclined to one another by 6.65 (13)°·The benzene ring is normal to the 4H-chromene moiety mean plane, making a dihedral angle of 89.18 (5)°. The met...
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Carbajal, José M., and Richard C. Schaeffer, Jr. RhoA inactivation enhances endothelial barrier function. Am. J. Physiol. 277 (Cell Physiol. 46): C955–C964, 1999.—The modulation of endothelial barrier function is thought to be a function of contractile tension mediated by the cell cytoskeleton, which consists of actomyosin stress fibers (SF) linked to focal adhesions (FA). We tested this hypoth...
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ژورنال
عنوان ژورنال: Acta Crystallographica Section E Structure Reports Online
سال: 2011
ISSN: 1600-5368
DOI: 10.1107/s1600536811035094