Publications by authors named "Pei-Lian Liu"

In the course of our ongoing search for biologically active compounds from medicinal plant, the ethyl acetate extract from the leaves of (Rutaceae) was investigated. Six compounds including a new indole alkaloid, glycosparvine A (), and five previously known metabolites (-) were identified. The structure of the new compound () was unambiguously elucidated by spectroscopic analyses, including 1D/2D NMR spectroscopy and HRESIMS.

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Two new sulphur-containing amides, glylucidamides C-D (-), along with twelve known analogues (-) were isolated and characterised from the leaves of . The chemical structures of and were elucidated by extensive spectroscopic methods and the known compounds were identified by comparisons their data with those reported in the literatures. All new compounds were evaluated for their anti-inflammatory activities examining the inhibitory activity on nitric oxide (NO) production induced by lipopolysaccharide in mouse macrophage RAW 264.

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The title coordination polymer, {[Nd(2)(C(4)H(2)O(4))(3)(H(2)O)(4)]·3H(2)O}, was synthesized by the reaction of neodymium(III) nitrate hexa-hydrate with fumaric acid in a water-methanol (7:3) solution. The asymmetric unit comprises two Nd(3+) cations, three fumarate dianions (L(2-)), four aqua ligands and three uncoordinated water mol-ecules. The carboxyl-ate groups of the fumarate dianions exhibit different coordination modes.

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The asymmetric unit of the title compound, C(14)H(12)F(8)N(2), contains one tetra-fluoro-pyrrolidine system and one half-mol-ecule of benzene; the latter, together with a second heterocyclic unit, are completed by symmetry, with a twofold crystallographic axis crossing through both the middle of the bond between the C atoms bearing the heterocyclic rings and the opposite C-C bonds of the whole benzene mol-ecule. The pyrrolidine ring shows an envelope conformation with the apex at the N atom. The dihedral angle between the least-squares plane of this ring and the benzene ring is 36.

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In the title fluorinated pyrrolidine derivative, C(10)H(10)F(4)N(2), the dihedral angle between the best planes of the benzene and pyrrolidine rings is 62.6 (1)°. The crystal packing features inter-molecular N-H⋯F hydrogen bonds.

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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 fumarate dianion and fumaric acid exhibit different coordination modes.

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