Crystal structure of 6-amino-3-cyclopropyl-1-ethyl-1Hpyrimidine- 2,4-dione hydrate, C9H13N3O2 · H2O
نویسندگان
چکیده
منابع مشابه
Crystal structure of 1-cyclopropyl-2-ethyl-5-fluoro-6- (4-methylpiperazin-1-yl)-1H-benzimidazole.
biological activities,1 and some of them are used as drugs.2,3 In previous studies,4,5 we reported on the synthesis and biological evaluation of 1,2,5(6)-trisubstituted benzimidazoles as antihistaminic and antimicrobial agents. The synthesis of ethyl 1-cyclopropyl-5-fluoro-6-(4-methylpiperazine-1-yl)-1H-benzimidazole-2-acetate (1) was performed according to reported methods.6,7 1-Cyclopropyl-2-...
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In the title compound, C18H17N3O3, the dihedral angle between the planes of the indazole ring system [maximum deviation = 0.012 (1) Å] and the pyran-2,4-dione ring is 54.03 (6)°. An intra-molecular N-H⋯O hydrogen bond closes an S(6) ring. The same H atom also participates in an inter-molecular N-H⋯O hydrogen bond, which generates an inversion dimer. The dimers are linked by weak C-H⋯O contacts,...
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interpret the detailed mechanisms of reactions of tautomeric heterocycles properly. The correct dominant tautomeric structure also makes it possible to interpret the biological activity and functions of potential tautomeric heterocycles.1 Many of these aza/deaza analogues of purine and their nuclosides have drawn considerable interest in biological activity. Compound 6-amino-1,2,4-triazolo[3,4-...
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In the title compound, C13H12ClNO2, the dihedral angle between the planes of the quinoline ring system (r.m.s. deviation = 0.029 Å) and the ester group is 54.97 (6)°. The C-O-C-Cm (m = meth-yl) torsion angle is -140.62 (16)°. In the crystal, mol-ecules inter-act via aromatic π-π stacking [shortest centroid-centroid separation = 3.6774 (9) Å] generating (010) sheets.
متن کاملCrystal structure of 2-amino-3-ethyl-4,5-dihydro-1,3-thiazol-3-ium 3-chlorobenzoate
The title salt, C5H11N2S(+)·C7H4ClO2 (-), comprises a 2-amino-3-ethyl-4,5-di-hydro-1,3-thia-zol-3-ium cation in which the five-membered ring adopts an envelope conformation with the methyl-ene C adjacent to the S atom being the flap, and a planar 3-chloro-benzoate anion (r.m.s. deviation for the 10 non-H atoms = 0.021 Å). The most prominent feature of the crystal packing are N-H⋯O hydrogen bond...
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ژورنال
عنوان ژورنال: Zeitschrift für Kristallographie - New Crystal Structures
سال: 2010
ISSN: 2197-4578,1433-7266
DOI: 10.1524/ncrs.2010.0260