N 6,3′-cyclo-5′-O-Cyanomethylthymidine
نویسندگان
چکیده
The title compound, C(19)H(20)N(4)O(4), is a cyclo-nucleoside with a C-N linkage. The furan-ose ring adopts a twist C3'-endo/C2'-exo (close to (3)T(2)) conformation with a pseudorotational phase angle (P) of 8.1° and puckering amplitude (v(m)) of 30.6°. The orientation of the pyrimidine ring with respect to the sugar group is anti. One intra-molecular C-H⋯O hydrogen bond is observed. The packing features an N-H⋯O hydrogen bond.
منابع مشابه
An unusual polycatenating network self-assembled by the 2D --> 2D parallel --> 3D parallel interpenetration of coordinative and hydrogen-bonded (6,3) motifs.
In the title coordination compound, catena-poly[[[bis[diaquacadmium(II)]-mu(2)-trans-1,2-bis(4-pyridyl)ethene]bis{mu(2)-2,2'-[(5-carboxymethoxy-m-phenylene)dioxy]diacetato}] trans-1,2-bis(4-pyridyl)ethene solvate dihydrate], {[Cd(2)(C(12)H(10)O(9))(2)(C(12)H(10)N(2))(H(2)O)(4)].C(12)H(10)N(2).2H(2)O}(n), (I), each Cd(II) centre adopts a pentagonal-bipyramidal coordination geometry. The incomple...
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متن کاملBis[N-cyclohexyl-1-(2-{1-[(cyclohexylamino)carbonyl]cyclohexyl}-3,5-dioxo-1,2-oxazolidin-4-yl)cyclopentanecarboxamide] monohydrate
The reaction of cyclo-hexyl isocyanide and alkyl-idene Meldrum's acid (systematic name 2,2-dimethyl-1,3-dioxane-4,6-dione) in the presence of cyclo-hexyl ketoxime and dichloro-methane as solvent resulted in the title compound, 2C(28)H(43)N(3)O(5)·H(2)O. One methyl-ene group of the cyclo-pentane ring was found to be disordered and was refined with occupancies 0.75:0.25. Intra-molecular N-H⋯O hyd...
متن کامل7′-Amino-1′H-spiro[cycloheptane-1,2′-pyrimido[4,5-d]pyrimidin]-4′(3′H)-one
The title compound, C(12)H(17)N(5)O, was obtained by cyclo-condensation of 2,4-diamino-pyrimidine-5-carbonitrile with cyclo-hepta-none. The tetra-hydro-pyrimidine ring has a dis-torted boat conformation and the cyclo-heptane ring adopts a chair conformation. In the crystal, molecules are linked via N-H⋯O and N-H⋯N hydrogen bonds generating a three-dimensional network.
متن کاملPoly[diaqua-μ2-oxalato-di-μ2-pyrimidine-2-carboxylato-dimanganese(II)]
In the title compound, [Mn(2)(C(2)O(4))(C(5)H(3)N(2)O(2))(2)(H(2)O)(2)](n), the Mn(II) atom exhibits a distorted octa-hedral coordination geometry, with the centrosymmetric oxalate anion and the monoanionic pyrimidine-2-carboxyl-ate ligands generating a two-dimensional honeycomb network with a (6,3)-topology.
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عنوان ژورنال:
دوره 66 شماره
صفحات -
تاریخ انتشار 2010