Three New Flavonoid Glycosides, Kaempferol 3-O-(caffeoylrhamnoside), Apigenin 4′-O-(caffeoylglucoside) And 4′-O-(feruloylglucoside) From Dryopteris villarii
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چکیده
منابع مشابه
Diethyl(μ3-2-methyl-4-oxo-4H-pyran-3-olato-κ4 O 3,O 4:O 3:O 3)tris(μ2-2-methyl-4-oxo-4H-pyran-3-olato-κ3 O 3,O 4:O 3)trizinc toluene disolvate
The title compound, [Zn3(C2H5)2(C6H5O3)4]·2C7H8, crystallizes with one complex mol-ecule solvated by two mol-ecules of toluene in the asymmetric unit. The Zn(II) ions are coordinated by two terminal ethyl (Et) groups and four maltolate ligands, which act as μ3- and μ2-bridges. The metal atoms are arranged in an incomplete cubane Zn3O4 core structure, derived from one EtZnO3 tetra-hedron, one Et...
متن کاملPoly[diaquabis(μ4-fumarato-κ4 O 1:O 1′:O 4:O 4′)(μ4-fumarato-κ6 O 1:O 1,O 1′:O 4:O 4,O 4′)(μ2-fumaric acid-κ2 O 1:O 4)dipraseodymium(III)]
The title complex, [Pr(2)(C(4)H(2)O(4))(3)(C(4)H(4)O(4))(H(2)O)(2)](n), was synthesized by reaction of praseodymium(III) nitrate hexa-hydrate with fumaric acid in a water-ethanol (4:1) solution. The asymmetric unit comprises a Pr(3+) cation, one and a half fumarate dianions (L(2-)), one half-mol-ecule of fumaric acid (H(2)L) and one coordinated water mol-ecule. The carboxyl-ate groups of the fu...
متن کاملPoly[[hexaaqua(μ2-fumarato-κ4 O 1,O 1′:O 4,O 4′)bis(μ3-maleato-κ4 O 1,O 1′:O 4:O 4′)disamarium(III)] hexahydrate]
In the title coordination polymer, {[Sm(2)(C(4)H(2)O(4))(3)(H(2)O)(6)]·6H(2)O}(n), the Sm(III) ion is nine-coordinated by four O atoms from three different maleate ligands, two O atoms from one fumarate ligand and three O atoms from three water mol-ecules. The fumarate ligand lies on an inversion center. Adjacent Sm(III) ions are bridged by the maleate and fumarate ligands, forming a layer para...
متن کاملPoly[(μ6-naphthalene-1,4-dicarboxylato-κ6 O 1:O 1′:O 1′:O 4:O 4′:O 4′)iron(II)]
In the title compound, [Fe(C(12)H(6)O(4))](n), the Fe(II) atom is coordinated by six O atoms from six symmetrically equivalent naphthalene-1,4-dicarboxyl-ate ligands in a strongly distorted octa-hedral geometry. These octa-hedra are connected via common edges into chains that elongate along the a axis, with Fe⋯Fe distances of 2.9712 (4) and 2.9724 (4) Å. The chains are linked via the naphthalen...
متن کاملFlavonol 3-O-Glycosides from Three Algerian Bupleurum Species
Flavonoids distribution in three algerian Bupleureum (Apiaceae) species has been investigated. Quercetin (1), quercetin 3-rutinoside (2) and isorhamnetin 3-rutinoside (3) were found in the endemic species B. plantagineum Desf. Three kaempferol glycosides, kaempferol 3-glucoside (4), kaempferol 3-galactoside (5), kaempferol 3-rutinoside (6) and three quercetin glycosides, quercetin 3-rutinoside ...
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ژورنال
عنوان ژورنال: American Fern Journal
سال: 2007
ISSN: 0002-8444,1938-422X
DOI: 10.1640/0002-8444(2007)97[233:tnfgko]2.0.co;2