A new alkynol, platycodynol (), identified as 2, 3, 9, 13, 14-pentahydroxy-4, 6-tetradecadiyne, along with six known compounds () were obtained from for the first time. Their structures were elucidated with infrared (IR), ultraviolet (UV), 1D and 2D nuclear magnetic resonance (NMR) spectroscopic analysis as well as by high resolution electrospray ionization mass spectroscopy (HRESIMS). Platycodynol showed cytotoxicity against S180, A549 and SPC-A-1 cancer cells but no cytotoxicity against normal cells NCTC1469 and HL-7702 by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide (MTT) method.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1080/14786419.2020.1712381 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Anticancer Potential of Diruthenium Complexes with Bridging Hydrocarbyl Ligands from Bioactive Alkynols.
Inorg Chem
October 2023
University of Pisa, Dipartimento di Chimica e Chimica Industriale, Via G. Moruzzi 13, I-56124 Pisa, Italy.
Diruthenacyclopentenone complexes of the general composition [RuCp(CO){μ-η:η-CH═C(C(OH)(R))C(═O)}] (-; Cp = η-CH) were synthesized in 94-96% yields from the reactions of [RuCp(CO){μ-η:η-C(Ph)═C(Ph)C(═O)}] () with 1-ethynylcyclopentanol, 17α-ethynylestradiol, and 17-ethynyltestosterone, respectively, in toluene at reflux. Protonation of - by HBF afforded the corresponding allenyl derivatives [RuCp(CO){μ-η:η-CH═C═R}]BF (-) in 85-93% yields. All products were thoroughly characterized by elemental analysis, mass spectrometry, and IR, UV-vis, and nuclear magnetic resonance spectroscopy.
View Article and Find Full Text PDFCopper-Catalyzed Radical Addition of Alkynols to Synthesize Difluoroheterocyclic Compounds.
Org Lett
April 2023
Institute of Next Generation Matter Transformation, College of Material Sciences Engineering at Huaqiao University, 668 Jimei Blvd, Xiamen, Fujian 361021, P. R. China.
A convenient method for the synthesis of fluorine-containing heterocyclic compounds was developed by a copper-catalyzed free radical addition reaction of alkynol and ethyl bromodifluoroacetate. This strategy involves copper-catalyzed free radical addition and molecular lactone exchange of ethynyl alcohol and ethyl bromodifluoroacetate. The method is characterized by easy availability of raw materials, good stereochemical selectivity, and simple operation.
View Article and Find Full Text PDFThe Meyer-Schuster rearrangement of propargyl alcohols or alkynols leading to α,β-unsaturated carbonyl compounds is well known. Yet, electrophilic halogenations of the same alkynols and their alkoxy, ester and halo derivatives are inconspicuous. This review on the halogenation reactions of propargyl alcohols and derivatives intends to give a perspective from its humble direct halogenation beginning to the present involving metal catalysis.
View Article and Find Full Text PDFNon-targeted metabolomic analysis of variation of volatile fractions of ginseng from different habitats by HS-SPME-GC-MS coupled with chemometrics.
Anal Methods
September 2022
Key Laboratory of Digital Quality Evaluation of Chinese Materia Medica of State Administration of TCM and Engineering & Technology Research Center for Chinese Materia Medica Quality of Guangdong Province, Guangdong Pharmaceutical University, Guangzhou 510006, China.
Cultivated ginseng (CG), transplanted ginseng (TG) and mountain cultivated ginseng (MCG) classified by the habitat type all belong to and were reported to have similar types of secondary metabolites. Nonetheless, owing to the distinctly diverse habitats in which these ginseng types grow, their pharmacological effects differ. In the present study, an emerging analytical approach involving headspace solid-phase microextraction-gas chromatography-mass spectrometry (HS-SPME-GC-MS) was established to effectively distinguish among CG, TG and MCG.
View Article and Find Full Text PDFHybrid Pd-Nanoparticles within Polymeric Network in Selective Hydrogenation of Alkynols: Influence of Support Porosity.
Molecules
June 2022
Department of Biotechnology, Chemistry and Standardization, Tver State Technical University, A. Nikitina Str., 22, 170026 Tver, Russia.
This work is addressing the selective hydrogenation of alkynols over hybrid catalysts containing Pd-nanoparticles, within newly synthesized hyper-cross-linked polystyrenes (HPS). Alkynols containing C, C, and C with a terminal triple bond, which are structural analogues or direct semi-products of fragrant substances and fat-soluble vitamins, have been studied. Selective hydrogenation was carried out in a batch mode (ambient hydrogen pressure, at 90 °C, in toluene solvent), using hybrid Pd catalysts with low metal content (less than 0.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!