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Open AccessSynthesis, crystal structure and larvicidal activity of novel diamide derivatives against Culex pipiens
Culex is an important mosquito as vectors for the transmission of serious diseases, such as filariasis, West Nile virus, dengue, yellow fever, chikungunya and other encephalitides. Nearly one billion people in...
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Article
Anti-diabetic effects of polysaccharides from ethanol-insoluble residue of Schisandra chinensis (Turcz.) Baill on alloxan-induced diabetic mice
The ethanol-insoluble residue of Schisandra generated during lignans industrial production is usually treated as solid waste. However, there is active polysaccharide which could be used in it. In this work, the w...
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Article
Influence of electronic effect on methane catalytic combustion over PdNi/Al2O3
A series of PdNi/Al2O3 catalysts with different compositions was prepared by co-reduction method. The influence of Ni amount on the catalytic combustion of methane was studied. X-ray diffractometry and X-ray phot...
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Article
Simultaneous Determination of Flumequine and Oxolinic Acid Residues in Aquatic Products Using Pressurized Capillary Electrochromatography
A rapid method for detection of flumequine (FQ) and oxolinic acid (OA) residues from fish tissues was established using pressurized capillary electrochromatography (pCEC). Residual FQ and OA were extracted fro...
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Article
Determination of 13 Phenolic Compounds in Rice Wine by High-Performance Liquid Chromatography
Rice wines are widely consumed by the general public in Asian countries, while comprehensive studies focused on the individual phenolic compounds in rice wines are limited. A rapid method for simultaneous dete...
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Article
Phytochemical Investigation of Hydroalcoholic Extractives from Branches of Fraxinus velutina
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Article
Synthesis and Cytotoxicity Evaluation of Pentacyclic Triterpene–Phenol Nitrogen Mustard Conjugates
Using a reported pharmacophore, 4-[N,N-bis(2-chloroethyl)-amino]phenol, and pentacyclic triterpenes, pharmacologically and structurally diverse components of natural products, six pentacyclic triterpene-4-[N,N...
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Article
Secondary Metabolites of Two Lichen-Derived Streptomyces
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Article
Wet chemical extraction of silicon from natural palygorskite for preparing a mesoporous molecular sieve of Al-SBA-16
Three-dimensional mesoporous molecular sieve, Al-SBA-16, was successfully prepared via a wet chemical route, which involved co-condensation of silicon source from natural palygorskite by alkali-melting extract...
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Article
Two New Benzazepine Alkaloids from Thalictrum wangii and their Anti-Rotavirus Activity
Two new benzazepine alkaloids (1 and 2) were isolated from the whole plants of Thalictrum wangii. Their structures were determined by means of HR-ESI-MS and extensive 1D and 2D NMR spectroscopic studies. Compound...
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Article
Stilbene Derivatives from the Leaves and Stems of Bletilla striata and their Cytotoxicity and Autophagy Activity
Two new compounds (1 and 2), together with five known (3–7) stilbene derivatives, were isolated from the leaves and stems of Bletilla striata. Their structures were elucidated by spectroscopic methods, including ...
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Article
Chemical Constituents of the Roots of Phlomis betonicoides and Their Anti-Rotavirus Activity
Two new isobenzofuranone derivatives (1 and 2) together with six known compounds (3–8) were isolated from the roots of Phlomis betonicoides, a highly sweet plant in China. Their structures were determined by mean...
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Article
Two New Antibacterial Anthraquinones from Cultures of an Endophytic Fungus Phomopsis sp.
Two new anthraquinones, 3-hydroxy-6-hydroxymethyl-2,5-dimethylanthraquinone (1) and 6-hydroxymethyl-3-methoxy-2,5-dimethylanthraquinone (2), were isolated from the fermentation products of the endophytic fungus P...
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Article
Light-activated nitric-oxide overproduction theranostic nanoplatform based on long-circulating biomimetic nanoerythrocyte for enhanced cancer gas therapy
The limited intratumoral perfusion of nitric oxide (NO)-carrying nanoparticles into solid tumors caused by the inherent biological barriers in vivo greatly attenuates their generated efficacy. Herein, through ent...
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Article
Antiviral Chromone Alkaloids from the Cigar Tobacco Leaves Derived Endophytic Fungus Aspergillus lentulus
The chromone alkaloids have attracted the widespread attention of chemists and biologists due to their complex structures and prominent bioactivities. With the aim of screening more antiviral activity metaboli...
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Article
Two New Antibacterial Naphthoquinones from a Cigar Tobacco-Derived Endophytic Fusarium solani
In this study, two new (1 and 2), together with five known (3–7) naphthoquinones were isolated from the cigar tobacco-derived endophytic Fusarium solani. Their structures were determined by means of HR-ESI-MS and...
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Article
Two New Isoquinolines from Cigar Tobacco-Derived Endophytic Fungi Aspergillus puniceus and Their Antibacterial Activity
With the aims of screening more antibacterial activity metabolites, in this study, two new (1 and 2), together with five known (3–7) isoquinolines were isolated from the cigar tobacco-derived endophytic fungi Asp...
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Article
Isoprenylated Flavones from the Twigs of Artocarpus chama and Their Anti-Viral Activities
A new isoprenylated flavone, 8,4′-dimethoxy-6-(4′′-methylfuran-2-yl)-flavone (1), together with five known isoprenylated flavones (2–6) were isolated from the twigs of Artocarpus chama. Interestingly, compound 1 ...
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Article
An air-stable single-crystal layered oxide cathode based on multifunctional structural modulation for high-energy-density sodium-ion batteries
P2-type layered oxide, Na2/3Ni1/3Mn2/3O2, has drawn particular interest as a promising cathode material for sodium-ion batteries (SIBs) due to its fast sodium-ion transport channels with low migration potential. ...
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Article
Two New Anti-SARS-CoV-2 Naphthoquinones from Cigar-Tobacco-Derived Endophytic Fusarium oxysporum
In this study, two new naphthoquinones, 6-isopropyl-7-methoxy-2-(2-oxopropyl)naphthalene-1,4-dione (1) and 7-hydroxy-6-isopropyl-2-(2-oxopropyl)naphthalene-1,4-dione (2), together with five known new naphthoquino...