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The purification method for a novel ginsenoside-hydrolyzing beta-glucosidase from Paecilomyces Bainier sp. 229 was successfully simplified by the application of microcrystalline cellulose (MCC) as a novel chromatographic matrix. Only two chromatographic steps, Q-Sepharose FF and MCC column in sequence, were required to purify the enzyme to apparent… (More)
In order to construct the recombinant plasmid of pIRES-ORF81, the nucleic acid isolated from Koi herpes virus-CJ (KHV-CJ) strains was used as a template to insert the ORF81 gene fragments amplified by PCR into the pIRES-neo, a kind of eukaryotic expression vector. Using Western blotting analysis, it was verified that ORF81 gene protein can be expressed… (More)
A Pd(II)-catalyzed oxidative coupling between pyridine N-oxides and N-substituted indoles via 2-fold C-H bond activation was achieved with high selectivity using Ag(2)CO(3) as an oxidant.
Catalytic oxidative coupling between acrylamides and alkynes was achieved using 0.5 mol % loading of [RhCp*Cl(2)](2) with Cu(OAc)(2) as an oxidant. 2-Pyridones, iminoesters, and substituted indoles could be obtained as a result of the electronic and steric effects of the substituents in the acrylamides.
To understand the status quo of the diagnosis and treatment of type 2 diabetes mellitus (T2DM) in China. A total of 1,759 respondents from 31 provinces, municipalities, and autonomous regions participated this online questionnaire-based survey from November to December in 2014 via the DXY.cn survey & research platform. All the respondents had certain… (More)
Rhodium(III)-catalyzed direct functionalization of C-H bonds under oxidative conditions leading to C-C, C-N, and C-O bond formation is reviewed. Various arene substrates bearing nitrogen and oxygen directing groups are covered in their coupling with unsaturated partners such as alkenes and alkynes. The facile construction of C-E (E = C, N, S, or O) bonds… (More)
The yield of triptane from the reaction of methanol with zinc iodide is dramatically increased by addition of phosphorous or hypophosphorous acid, via transfer of hydride from a P-H bond to carbocationic intermediates.
Hierarchical sulfonated graphene nanosheet/carboxylated multiwalled carbon nanotube/polyaniline (sGNS/cMWCNT/PANI) nanocomposites were synthesized through an interfacial polymerization method. Activated porous graphene (aGNS) was prepared by combining chemical foaming, thermal reduction, and KOH activation. Furthermore, we have successfully fabricated an… (More)
An efficient Rh(III)- and Ir(III)-catalyzed, chelation-assisted C-H alkynylation of a broad scope of (hetero)arenes has been developed using hypervalent iodine-alkyne reagents. Heterocycles, N-methoxy imines, azomethine imines, secondary carboxamides, azo compounds, N-nitrosoamines, and nitrones are viable directing groups to entail ortho C-H alkynylation.… (More)
N-(2,3,4,5,6-pentahydroxylhexyl)-L-cysteine (4) and N,N'-di(2,3,4,5,6-pentahydroxylhexyl)-L-cystine (5) were synthesized. As antagonists of cadmium or lead intoxication, they were found to be effective by oral administration on repeated exposure. The bioassay in vivo indicated that their cadmium-mobilizing potencies are significantly superior to those of… (More)