Essential Oil from the Aerial Parts of Curcuma pygmaea: Components and Antibacterial Activity
(Source: Chemistry of Natural Compounds)
Source: Chemistry of Natural Compounds - September 15, 2023 Category: Chemistry Source Type: research
Qualitative and Quantitative Composition of Carotenoids in Extracts of the Brown Alga Ascophyllum nodosum
(Source: Chemistry of Natural Compounds)
Source: Chemistry of Natural Compounds - September 15, 2023 Category: Chemistry Source Type: research
Two New 4-Phenylcoumarins and a New 4-Phenylcoumarin Derivative From Calophyllum polyanthum
Two new 4-phenylcoumarins, 12-acetoxysoulattrolide (1), inocalocyclide E (2), and one new 4-phenylcoumarin derivative, inocalophyllin C (3), together with three known 4-phenylcoumarins (4 –6), and two 4-phenylcoumarin derivatives (7 and8) were isolated from the stems and leaves ofCalophyllum polyanthum Wall. ex Planch.& Triana. The absolute structures of compounds1 –3 were completely elucidated using a combination of 1D, 2D NMR techniques, HR-ESI-MS analyses, and ECD calculations. (Source: Chemistry of Natural Compounds)
Source: Chemistry of Natural Compounds - September 14, 2023 Category: Chemistry Source Type: research
Bioactive Chemical Constituents from the Peels of Punica granatum
(Source: Chemistry of Natural Compounds)
Source: Chemistry of Natural Compounds - September 14, 2023 Category: Chemistry Source Type: research
Synthesis and Cytotoxic Activity of the Conjugate of an Oxygenated Betulinic Acid Analog with the Delocalized Lipophilic Cationic Compound F16
A new lupane triterpenoid containing a 1α,2β,3β-triacetoxy-functionalized ring A was synthesized from betulinic acid. Its conjugate with the membrane-penetrating cationic compound F16 was prepared. The conjugate exhibited significantly more pronounced antitumor activity than betulinic acid (betulinic acid IC50 34.5 μM, conjugate IC50 6.3 μM) in studies of the cytotoxic activity against H1299 and A549 lung adenocarcinoma cells but did not show selectivity between tumor cells and noncancer murine embryonic fibroblasts (MEFs). (Source: Chemistry of Natural Compounds)
Source: Chemistry of Natural Compounds - September 14, 2023 Category: Chemistry Source Type: research
Pharmacochemical Studies on Eremomastax speciosa
(Source: Chemistry of Natural Compounds)
Source: Chemistry of Natural Compounds - September 14, 2023 Category: Chemistry Source Type: research
Discovery of Ursolic Acid Derivatives as Inhibitors of Protein Tyrosine Phosphatase 1B
Here, a series of ursolic acid (UA) derivatives were identified as potential protein tyrosine phosphatase 1B (PTP1B) enzyme inhibitors. All of the tested compounds showed potent PTP1B inhibitory activity (47.01 –67.89%). Compound2d (67.89%) exhibited the highest activity of all the synthesized compounds, which showed higher activity than observed for the positive control UA (51.13%). Molecular docking simulation and analysis suggested that compound2d has a good binding interaction with the active pocket. (Source: Chemistry of Natural Compounds)
Source: Chemistry of Natural Compounds - September 14, 2023 Category: Chemistry Source Type: research
Composition of Volatile Components and Antibacterial Activity of Dysoxylum densiflorum Sawdust Essential Oil
(Source: Chemistry of Natural Compounds)
Source: Chemistry of Natural Compounds - September 14, 2023 Category: Chemistry Source Type: research
Constituents from the Aerial Part of Scutellaria oxystegia
(Source: Chemistry of Natural Compounds)
Source: Chemistry of Natural Compounds - September 14, 2023 Category: Chemistry Source Type: research
Chemical Composition of Essential Oil and Hydrocarbons from Halimodendron halodendron
(Source: Chemistry of Natural Compounds)
Source: Chemistry of Natural Compounds - September 14, 2023 Category: Chemistry Source Type: research
Secondary Metabolites of Medicago sativa Infected with Leptosphaerulina australis and Antifungal Activity
(Source: Chemistry of Natural Compounds)
Source: Chemistry of Natural Compounds - September 14, 2023 Category: Chemistry Source Type: research
Furocoumarins from Ferula lehmannii
(Source: Chemistry of Natural Compounds)
Source: Chemistry of Natural Compounds - September 14, 2023 Category: Chemistry Source Type: research
A New Lindenane Sesquiterpenoid from the Roots of Chloranthus henryi
A new lindenane sesquiterpenoid, chlohenriol D (1), along with five known compounds (2 –6) was obtained from the roots ofChloranthus henryi. Structural elucidation for the new compound was characterized by spectroscopic analysis. Compound1 was further tested for its neuroprotective effects on H2O2-damaged PC12 cells. (Source: Chemistry of Natural Compounds)
Source: Chemistry of Natural Compounds - September 14, 2023 Category: Chemistry Source Type: research
Constituent Composition of Essential Oil from Senecio Subdentatus Growing in Uzbekistan
(Source: Chemistry of Natural Compounds)
Source: Chemistry of Natural Compounds - September 14, 2023 Category: Chemistry Source Type: research
Derivatives of (tetrahydroxyethyl-1,4-naphthoquinonyl)-hydroxyurea – Metabolites of Histochrome Preparation
(Source: Chemistry of Natural Compounds)
Source: Chemistry of Natural Compounds - September 14, 2023 Category: Chemistry Source Type: research
