2-(2`,3`,5`-Tri-O-acetyl-b-D-ribofuranosyl)-4-(3-nitrophenylazo)-5-trifluoromethyl-2,4-dihydropyrazol-3-one
نویسندگان
چکیده
منابع مشابه
2,6-Dichloro-9-(2′,3′,5′-tri-O-acetyl-β-d-ribofuranosyl)-9H-purine
The title synthetic analog of purine nucleosides, C16H16Cl2N4O7, has its acetyl-ated β-furan-ose ring in a 3'β-envelope conformation, with the corresponding C atom deviating by 0.602 (5) Å from the rest of the ring. The planar part of the furan-ose ring forms a dihedral angle of 65.0 (1)° with the mean plane of the purine bicycle. In the crystal, mol-ecules form a three-dimensional network thro...
متن کامل3-Acetyl-2-methyl-4-(pyridin-3-yl)-1,4-dihydroindeno[1,2-b]pyridin-5-one
In the title compound, C20H16N2O2, the condensed tricyclic fragment is near to planar, with an r.m.s. deviation of 0.0531 Å. The 1,4-di-hydro-pyridine (1,4-DHP) ring adopts a slightly puckered boat-like conformation. The N and opposite C atoms deviate from the least-squares plane of the four other ring atoms by 0.039 (3) and 0.141 (3) Å, respectively. The C=O group located at the tricyclic frag...
متن کاملSynthesis and antitumor activity of 5-trifluoromethyl-2,4- dihydropyrazol-3-one nucleosides.
2,4-Dihydropyrazole glucosides 3a-3c were prepared and tested for their antitumor activity. The structures of these compounds were established by (1)H and (13)C-NMR spectroscopy. Glucoside 3b shows an in vitro IC(50) value of 16.4 muM against proliferation of the human promyelotic leukemia (HL60) cell line.
متن کامل3-Ethyl-8-methoxy-4-(2,3,4,6-tetra-O-acetyl-β-d-glucopyranosyloxy)quinolin-2(1H)-one
The structure of the title compound, C(26)H(31)NO(12), contains an essentially planar quinoline skeleton, with the maximum deviation from the best plane being 0.055 (2) Å, and an oxane ring in a classical chair conformation with the following Cremer and Pople puckering parameters: Q = 0.586 (2) Å, θ = 11.5 (2)° and ϕ = 309.4 (10)°. One acetyl group displays rotational disorder with occupancies ...
متن کامل3-Methyl-2,6-dinitro-N-(3-pentyl)-4-[(2,3,4-tri-O-acetyl-β-d-xylosyl)aminomethyl]aniline
In the title compound, C(24)H(34)N(4)O(11), the hexopyranosyl ring adopts a chair conformation. The four substituents are in equatorial positions. The mol-ecule shows an intra-molecular N-H⋯O hydrogen bond.
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ژورنال
عنوان ژورنال: Molecules
سال: 2001
ISSN: 1420-3049
DOI: 10.3390/m262