Publications by authors named "Xiao Li-Zhen"
Article Synopsis
- Iron-catalyzed method allows for efficient dehydroxyboration of allylic alcohols to create ()-stereoselective allylboronates.
- The process is effective for a variety of allylic alcohols, particularly those from natural products.
- A six-membered ring transition state involving allylic alcohols and an iron-boron intermediate plays a crucial role in transferring the boron group, activating the C-OH bond, and ensuring stereoselectivity.
[Diagnosis and treatment of an imported case of schistosomiasis haematobium].
Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi
January 2017
Objective: To report the diagnosis and treatment of an imported case of schistosomiasis haematobium, including the pathological features of the disease and therapeutic efficacy of praziquantel.
Methods: The data of the patient with schistosomiasis haematobium were collected, and the pathological features of the bladder tissue were observed under a microscope. More-over, the patient was treated with praziquantel, and his urine was collected before and after the treatment.
Article Synopsis
- A series of new arylidene N-alkoxydiketopiperazines were created using specific chemical processes, leading to a focus on their properties and effectiveness.
- The study highlighted potential mechanisms for how these compounds could rearrange and fragment, supported by crystal structure analysis.
- Several compounds showed strong antitumor activity, particularly against the enzyme caspase-3, with certain variants demonstrating promising selectivity and potency in low micromolar concentrations.
A series of open-chain analogs of cyclic peptides was designed and synthesized using sansalvamide A as a model compound. All compounds exhibited low antitumor activity. Furthermore, the evaluation of their inhibitory potency toward IMPDH, SHP2, ACHE, proteasome, MAGL, and cathepsin B showed that all of the compounds were potent against protein tyrosine phosphatase Shp2.
View Article and Find Full Text PDF3-(3,4-Dihydroxyphenyl)-1-methoxy-1-oxopropan-2-aminium chloride.
Acta Crystallogr Sect E Struct Rep Online
May 2012
Article Synopsis
- The compound C(10)H(14)NO(4) (+)·Cl(-) features a benzene ring that is tilted at an angle of 64.68 degrees from the attached methyl-amino-propano-ate unit.
- A strong hydrogen bond occurs within the molecule, specifically between the oxygen and hydrogen atoms (O-H⋯O).
- In the crystal structure, various types of hydrogen bonds (O-H⋯O, N-H⋯Cl, O-H⋯Cl) along with weaker interactions (C-H⋯O) create a three-dimensional network of molecules.
(Anthracen-9-ylmeth-yl)benzyl-ammonium chloride.
Acta Crystallogr Sect E Struct Rep Online
June 2011
In the title compound, C(22)H(20)N(+)·Cl(-), the anthracene system makes a dihedral angle of 72.65 (4)° with the benzene ring. The C-N-C-C torsion angles in the chain connecting the benzene ring and anthracene system are 52.
View Article and Find Full Text PDFIn the title compound, C(15)H(20)O(7), the benzene ring makes dihedral angles of 69.17 (5) and 80.81 (4)° with the two side chains of malonate.
View Article and Find Full Text PDFIn the title compound, C(15)H(15)NO(4), the quinoline ring system and one of the malonate side chains are essentially coplanar (r.m.s.
View Article and Find Full Text PDF2,5-Bis[2-(2-methoxy-ethoxy)phen-yl]-1,3,4-oxadiazole.
Acta Crystallogr Sect E Struct Rep Online
July 2009
In the title compound, C(20)H(22)N(2)O(5), the central 1,3,4-oxadiazole ring is essentially planar [r.m.s.
View Article and Find Full Text PDF11-(p-Tolylsulfonyl)-8,14,24-trioxa-11,22,23-triazatetracyclo[19.2.1.0.0]tetracosa-1(23),2,4,6,15,17,19,21-octaene.
Acta Crystallogr Sect E Struct Rep Online
July 2009
Article Synopsis
- The compound C(25)H(23)N(3)O(5)S contains a central 1,3,4-oxadiazole ring.
- The ring forms specific angles with three attached benzene rings, which are 35.05°, 23.68°, and 82.55°.
- The crystal structure features weak hydrogen bonds that connect the molecules into a continuous network.
(E)-1,5-Dimethyl-4-[3-(4-nitro-benz-yloxy)benzyl-ideneamino]-2-phenyl-1H-pyrazol-3(2H)-one.
Acta Crystallogr Sect E Struct Rep Online
October 2008
In the title compound, C(25)H(22)N(4)O(4), the central benzene ring, makes dihedral angles of 74.35 (6), 17.01 (8) and 62.
View Article and Find Full Text PDF(E)-4-[(1,5-Dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)imino-meth-yl]phenyl 4-bromo-benzene-sulfonate.
Acta Crystallogr Sect E Struct Rep Online
October 2008
In the title compound, C(24)H(20)BrN(3)O(4)S, the central benzene ring makes dihedral angles of 17.13 (13), 39.83 (13) and 58.
View Article and Find Full Text PDF(E)-N'-[2-(4-Chloro-3-nitro-phenyl-sulfon-yloxy)-3-methoxy-benzyl-idene]isonicotinohydrazide acetic acid tetra-solvate.
Acta Crystallogr Sect E Struct Rep Online
October 2008
In the title compound, C(20)H(15)ClN(4)O(7)S·4CH(3)COOH, the central o-vanillin group makes dihedral angles of 9.50 (11) and 42.86 (7)°, respectively, with its attached pyridine and nitro-benzene rings.
View Article and Find Full Text PDF