The aerial part of Nauplius aquaticus afforded a new sesquiterpene lactone with a humulanolide skeleton, 6,7,9,10-tetrahydroasteriscunolide (1), in addition to the known asteriscunolides A (2) and D (3). Their structures were established principally by two-dimensional NMR spectroscopy.
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http://dx.doi.org/10.1080/10575630108041312 | DOI Listing |
Org Lett
January 2025
Department of Pharmaceutical Sciences, Daniel K. Inouye College of Pharmacy, University of Hawai'i at Hilo, Hilo, Hawai'i 96720, United States.
A novel sesquiterpene lactone derivative, vernonolide A (), featuring an unprecedented carbon skeleton, along with its plausible biosynthetic precursor, vercinolide I (), and eight known sesquiterpene lactones (-) were isolated and characterized from the whole plants of (L.). The structures of and were elucidated using nuclear magnetic resonance spectroscopic analysis and calculated and experimental electronic circular dichroism spectra.
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January 2025
Institute of Physiologically Active Compounds, Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry, Russian Academy of Sciences, 142432 Chernogolovka, Russia.
Artemisinin is a sesquiterpene lactone derived from the plant L., renowned for its antimalarial activity. Based on this compound, various derivatives and analogues have been obtained that exhibit diverse biological activities, including clinically approved drugs.
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December 2024
Maj Institute of Pharmacology, Polish Academy of Sciences, Smętna Street 12, 31-343 Kraków, Poland.
Ethanolic extracts from the roots and aerial parts of the hitherto chemically uninvestigated lettuce species Willd. (Cichorieae, Asteraceae) were chromatographically separated to obtain eight sesquiterpenoids, two apocarotenoids (loliolide and (6,9) roseoside), and three phenolic glucosides (apigenin 7--glucoside, eugenyl-4---glucopyranoside, and 5-methoxyeugenyl-4---glucopyranoside). Four of the isolated sesquiterpene lactones (8--angeloyloxyleucodin, matricarin, 15-deoxylactucin, and deacetylmatricarin 8--glucopyranoside) have not previously been found either in spp.
View Article and Find Full Text PDFBMC Cardiovasc Disord
January 2025
Advanced Institute for Medical Sciences, Dalian Medical University, Dalian, 116044, China.
Background: The dried root of Inula helenium L., known as Inulae Radix in Mongolian medicine, is a widely used heat-clearing plant drug within the Asteraceae family. Alantolactone (ATL), a compound derived from Inulae Radix, is a sesquiterpene lactone with a range of biological activities.
View Article and Find Full Text PDFSci Rep
January 2025
Department of Zoonotic Diseases, National Research Centre, Dokki, Giza, 12622, Egypt.
Toxoplasmosis induced by Toxoplasma gondii is a well-known health threat, that prompts fatal encephalitis increased with immunocompromised patients, in addition, it can cause chorioretinitis, microcephaly, stillbirth in the fetus and even led to death. Standard therapy uses sulfadiazine and pyrimethamine drugs revealed beneficial results during the acute stage, however, it has severe side effects. UPLC-ESI-MS/MS used to explore C.
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