Results 11 to 20 of about 14,504 (194)
Acta Crystallographica Section E, 2012 In the title pyrimidine derivative, C4H4ClN3, the 2-chloro and 4-amino substituents almost lie in the mean plane of the pyrimidine ring, with deviations of 0.003 (1) Å for the Cl atom, and 0.020 (1) & ...
Gerard A. van Albada +3 more
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6-Chloro-N4,N4-dimethylpyrimidine-2,4-diamine
Acta Crystallographica Section E, 2012 The asymmetric unit of the title compound, C6H9ClN4, contains four independent molecules (A, B, C and D). Their main difference is the torsion angles, ranging from 1.6 (5) to 5.9 (5)°, between the methyl group and the ...
Bin Sun +3 more
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Transcription-Coupled Repair in Plants
Frontiers in Plant Science, 2012 UV-induced pyrimidine dimers block the progression of both DNA and RNA polymerases. In order to reduce the disruptive effect of these lesions on gene expression, bacteria, yeasts, and animals preferentially repair the transcribed strand of actively ...
Ana Lena Fidantsef, Anne Bagg Britt
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Acta Crystallographica Section E: Crystallographic Communications, 2017 The title compounds, C16H15N5OS, (I), and C12H12FN5OS, (II), are [(diaminopyrimidine)sulfanyl]acetamide derivatives. In (I), the pyrimidine ring is inclined to the naphthalene ring system by 55.5 (1)°, while in (II), the pyrimidine ring is inclined to ...
S. Subasri +5 more
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4-Methyl-6-(piperidin-1-yl)pyrimidin-2-amine
Acta Crystallographica Section E, 2013 The title compound, C10H16N4, crystalizes with two molecules (A and B) in the asymmetric unit in which the dihedral angles between the piperidine and pyrimidine rings are 47.5 (1) and 10.3 (1)°. The four C atoms of the pyrimidine ring in
S. Sreenivasa +5 more
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Crystal structure of (2-methyl-4-phenyl-4H-benzo[4,5]thiazolo[3,2-a]pyrimidin-3-yl)(phenyl)methanone
Acta Crystallographica Section E: Crystallographic Communications, 2015 In the title compound, C24H18N2OS, the pyrimidine ring has a flat envelope conformation with the methine C atom as the flap. The attached phenyl and benzoyl rings are inclined to the mean plane of the pyrimidine ring by 84.87 (8) and 75.33 (9 ...
T. Sankar +3 more
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Methyl 2-[2-(benzyloxycarbonylamino)propan-2-yl]-5-hydroxy-6-methoxypyrimidine-4-carboxylate
Acta Crystallographica Section E, 2011 In the title compound, C18H21N3O6, a pyrimidine derivative, the dihedral angle between the benzene and pyrimidine rings is 52.26 (12)°.
Hoong-Kun Fun +4 more
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6-[(2-Methylphenyl)sulfanyl]-5-propylpyrimidine-2,4(1H,3H)-dione
Acta Crystallographica Section E, 2014 In the title pyrimidine-2,4-dione derivative, C14H16N2O2S, the dihedral angle between the six-membered rings is 77.81 (10)°. The molecule is twisted about the Cp—S (p = pyrimidine) bond, with a C—S—C—N torsion angle of −59.01 (17)°. An intramolecular C—H.
Nadia G. Haress +4 more
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Crystal structure of N′-hydroxypyrimidine-2-carboximidamide
Acta Crystallographica Section E, 2014 The title compound, C5H6N4O, is approximately planar, with an angle of 11.04 (15)° between the planes of the pyrimidine ring and the non-H atoms of the carboximidamide unit. The molecule adopts an E configuration about the C=N double bond. In the crystal,
Nithianantham Jeeva Jasmine +2 more
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Damage mapping techniques and the light they have shed on canonical and atypical UV photoproducts
Frontiers in Genetics, 2023 Ultraviolet (UV) light is a pervasive threat to the DNA of terrestrial organisms. UV light induces helix-distorting DNA lesions, primarily cyclobutane pyrimidine dimers (CPDs) that form between neighboring pyrimidine bases.
Kaitlynne A. Bohm, John J. Wyrick
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