3,5-Di(-O-acetyl)-3′,4′,7-tri[-O-(2-O-acetylethyl)]quercetin
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چکیده
منابع مشابه
Methyl 2,3-di-O-acetyl-4-O-levulinoyl-1-O-(2,2,2-trichloro-2-iminoethyl)-l-idopyranosiduronate
In the title compound, C(18)H(22)Cl(3)NO(11), a novel derivative of l-idopyran-osiduronic acid, the six-membered ring adopts a chair conformation.
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In the title compound, C30H33BrO6, the pyran-ose ring adopts a chair conformation. Two of the O-benzyl phenyl rings lie almost perpendicular to C/C/C/O plane formed by the ring atoms not attached to these O-benzyl phenyl rings, and form dihedral angles of 85.1 (2) and 64.6 (2)°, while the third O-benzyl phenyl ring is twisted so that it makes a dihedral angle 34.9 (2)° to this C/C/C/O plane. Th...
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The title compound, C14H18F3NO8, was produced through conjugation of 1,3,4-tri-O-acetyl-2-azidode-oxy-α,β-l-fucose with tri-fluoro-acetyl chloride in the presence of bis-(di-phenyl-phosphino)ethane in tetra-hydro-furan at room temperature. The X-ray crystal structure reveals that the β-anomer of the product mixture crystallizes from ethyl acetate/hexa-nes. The compound exists in a typical chair...
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In the title compound, [CaCs2(C2O4)2(H2O)4] n , the Ca(2+) ion, lying on a twofold rotation axis, is coordinated by four O atoms from two oxalate ligands and two bridging water mol-ecules in an octa-hedral geometry. The Cs(+) ion is coordinated by seven O atoms from six oxalate ligands, one bridging water and one terminal water mol-ecule. The oxalate ligand displays a scarce high denticity. The...
متن کامل3′-O-Acetyl-2′-deoxyuridine
In the two independent but very similar mol-ecules of the title compound, C(11)H(14)N(2)O(6), both nucleobase fragments are nearly planar (both within 0.01 Å) while the furan-ose rings exhibit (2)E-endo envelope conformations. In the crystal, the two 3'-O-acetyl-2'-de-oxy-uridine mol-ecules form a pseudosymmetric dimer of two bases connected via two nearly identical resonance-assisted N-H⋯O hyd...
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ژورنال
عنوان ژورنال: Molbank
سال: 2010
ISSN: 1422-8599
DOI: 10.3390/m703