Publications by authors named "Dong-Sheng Ma"

Two naphthalene-containing compounds, 4-hydroxy-6,7-dimethoxy-1-(4-(trifluoromethyl)phenyl)-2-naphthoic acid (A) and 4-hydroxy-6,7-dimethoxy-1-phenyl-2-naphthoic acid (B), were prepared by several steps. Their bindings to human serum albumin (HSA) were studied by ultraviolet-visible (UV-vis) absorption, fluorescence, synchronous fluorescence, three-dimensional fluorescence, circular dichroism (CD) spectroscopies and molecular docking. The crystal data of these compounds show the structure of the compounds.

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Three novel coordination polymers (CPs), namely, {[Ag(L)(MoO)·(CHCN)]} (1), {[Zn(L)(1,4-bdc)·2(1,4-Hbdc)]} (2), {[Cd(L)(1,4-bdc)]} (3) have been synthesized under solvothermal conditions by the reaction of bis(4-(4-1,2,4-triazol-4-yl)phenyl)methane (L) and varied metal salts. Their structures are determined by single X-ray crystal diffraction, and further characterized by elemental analysis, IR, TGA and PXRD. CP 1 with ammonium molybdate as a secondary ligand displays a 2D network with (2,3,3,3,4)-connected net topology and the point symbol of {4·8}{4·8·10}{8}, CP 2 and CP 3 with 1,4-Hbdc as a secondary ligand demonstrate 3D structures with different topologies.

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Objective: To analyze the correlation of EBV infection with expression of TNF-α-inducing protein 3 gene and A20 protein in Hodgkin lmphoma.

Methods: The clinical data and pathological specimens of 65 cases of Hodgkin's lymphoma in our hospital were analyzed retrospectively, and the tissue chips were made for the rich area of the tumor cells. The latent membrane protein 1 encoded by EBV was measured by immunohistochemical staining, and the RNA encoded by EBV was measured by in situ hybridization to analyze the infection state.

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Objective: To study the biological characteristics and treatment response of patients with myelodysplastic syndrome (MDS) transformed into acute leukemia(AL).

Methods: Using WHO standard method, the clinical characteristics of patients with MDS into AML were retrospectively analyzed, the related factors influencing the MDS into AML and the treatment response of patients were analyzed.

Results: Twenty-six cases (17%) of MDS were transformed into AL among 153 cases of middle and high risk MDS, all of which were AML.

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In the title mol-ecule, C(9)H(10)N(4)S, the dihedral angle between the benzene and triazole rings is 81.05 (5)°. In the crystal, N-H⋯N hydrogen bonds link the mol-ecules into infinite zigzag chains along [010].

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2-(4-Chloro-phen-yl)acetamide.

Acta Crystallogr Sect E Struct Rep Online

December 2011

In the title compound, C(8)H(8)ClNO, the acetamide group is twisted out the benzene plane with a dihedral angle of 83.08 (1)°. In the crystal, mol-ecules are linked by N-H⋯O hydrogen bonds, forming layers parallel to the ab plane.

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5-(4-Chloro-benz-yl)-1H-tetra-zole.

Acta Crystallogr Sect E Struct Rep Online

August 2011

In the title compound, C(8)H(7)ClN(4), the phenyl and tetra-zole rings are inclined at a dihedral angle of 67.52 (6)°. In the crystal, mol-ecules are linked by an N-H⋯N hydrogen bond into a chain structure along [010].

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(S)-N-methylpyrrolidine-2-carboxylate, a derivative of natural L-proline, was found to be an efficient ligand for the copper-catalyzed Goldberg-type N-arylation of amides with aryl halides under mild conditions. A variety of N-arylamides were synthesized in good to high yields.

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In the title compound, [Cu(CH(3)COO)(2)(C(18)H(16)N(2)O(2))]·4H(2)O, the Cu(II) ion is six-coordinated in a Jahn-Teller-distorted octa-hedral geometry environment defined by four O atoms and two N atoms. A chain structure along [100] is built up by inter-molecular O-H⋯O hydrogen bonds involving the uncoordinated water mol-ecules.

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In the title compound, [Cu(CH(3)COO)(2)(C(18)H(16)N(2)O(2))]·H(2)O, the Cu(II) ion is six-coordinated in a typically Jahn-Teller distorted octa-hedral environment defined by two O and two N atoms from the ligand and two O atoms from acetate anions. A linear chain structure propagating in [010] is built up by inter-molecular O-H⋯O hydrogen bonds involving the uncoordinated water mol-ecules.

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In the title compound, C(10)H(8)N(2)O(10)·2H(2)O, the skeleton of the dicarboxylic acid mol-ecule is approximately planar, the largest deviation being 0.477 (1) Å for an O atom of a nitro group; this nitro group is twisted out of the plane of the ring by 24.6 (1)°.

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The skeletons of both independent mol-ecules of the carboxylic acid hemihydrate, C(10)H(8)N(2)O(10)·0.5H(2)O, are approximately planar [maximum deviations 0.642 (3) and 0.

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1-Methyl-sulfon-yl-4-nitro-benzene.

Acta Crystallogr Sect E Struct Rep Online

November 2008

In the title compound, C(7)H(7)NO(4)S, the nitro group is twisted by 10.2 (5) ° out of the plane of the benzene ring. Inversion-related mol-ecules are linked by non-classical C-H⋯O hydrogen bonds into dimers featuring an R(2) (2)(10) motif.

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In the title coordination polymer, {[NaZn(C(11)H(8)NO(6))(H(2)O)(3)]·2H(2)O}(n), the Zn atom is coordinated in a distorted tetra-hedral environment by three carboxyl-ate O atoms from two (4-carboxyl-atophenyl-imino)diacetate ligands and one water mol-ecule; the Na atom is in an distorted octa-hedral coordination environment formed by four carboxyl-ate O atoms from three (4-carboxyl-atophenyl-imino)diacetate ligands and two water mol-ecules. The Zn atoms and Na atoms are linked by (4-carboxyl-atophenyl-imino)diacetate ligands into a three-dimensional framework; the uncoordinated water mol-ecules fill the voids of the skeleton and stabilize it by O-H⋯O hydrogen bonds.

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