Search results for "Diterpenoids"

showing 4 items of 14 documents

Clerodane diterpenoids from Salvia splendens.

2006

Four new clerodane diterpenoids, salvisplendins A-D (1-4), have been isolated from an acetone extract of the flowers of SalVia splendens, together with an artifact (5), arising from salvisplendin D (4) by addition of diazomethane, and the already known clerodane olearin (6). The structures of the new compounds (1-5) were established mainly by 1D and 2D NMR spectroscopic studies and, in the case of salvisplendin A (1), by chemical correlation with splenolide B (7). Complete 1H and 13C NMR assignments for olearin (6), not published hitherto, are also reported.

StereochemistryPharmaceutical ScienceFlowersSalviaAnalytical ChemistryDiterpenes Clerodanechemistry.chemical_compoundFour new clerodane diterpenoids salvisplendins A-D (1-4) have been isolated from an acetone extract of the flowers of SalVia splendens together with an artifact (5) arising from salvisplendin D (4) by addition of diazomethane and the already known clerodane olearin (6). The structures of the new compounds (1-5) were established mainly by 1D and 2D NMR spectroscopic studies and in the case of salvisplendin A (1) by chemical correlation with splenolide B (7). Complete 1H and 13C NMR assignments for olearin (6) not published hitherto are also reportedDrug DiscoveryOrganic chemistrySalviaNuclear Magnetic Resonance BiomolecularPharmacologychemistry.chemical_classificationPlants MedicinalbiologyMolecular StructureChemistryDiazomethaneOrganic ChemistryCarbon-13 NMRbiology.organism_classificationChemical correlationTerpenoidComplementary and alternative medicineItalyMolecular MedicineDiterpeneTwo-dimensional nuclear magnetic resonance spectroscopyLactoneJournal of natural products
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An ent-kaurane from Sideritis huber-morathii

1996

WOS: A1996VW86500030

biologyStereochemistryS-CaesareaPlant ScienceGeneral MedicineHorticultureLabiataebiology.organism_classificationBiochemistryTerpenoidchemistry.chemical_compoundchemistrySideritis Huber-MorathiiSideritis3718-Triacetyl-FoliolDiterpeneMolecular BiologyEnt kauraneEnt-Kaurane Diterpenoids
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The diterpenoids from the genus Sideritis

2006

ABSTRACT: The genus Sideritis consists of 100-150 or more species, growing mainly in the countries around the Mediterranean area. The genus is particularly rich in diterpenoids, occurring in almost all the species, and shows many different carbon skeleta. Several species are still used in traditional medicine. Recent studies indicated the occurrence of interesting biological activities, like anti-inflammatory, antibacterial, antimicrobial, anti-HIV replication, antifeedant, antiulcerogenic, analgesic, and antihypoglycaemic.

biologyTraditional medicineGenusBotanyditerpenoids SideritisSideritisMediterranean areaSettore CHIM/06 - Chimica Organicabiology.organism_classificationAntimicrobial
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Crystal structure, Hirshfeld surface analysis and electrostatic potential study of naturally occurring cassane-type diterpenoid Pulcherrimin C monohy…

2019

Single crystal X-ray diffraction analysis and Hirshfeld surface analysis of the title compound were carried out to analyse qu­anti­tatively the inter­molecular inter­actions involved in the crystal packing. The electrostatic potential surface was generated over the Hirshfeld surface to visualize the potential active sites.

crystal structureCrystal structurecassane-type diterpenoids010402 general chemistry010403 inorganic & nuclear chemistryRing (chemistry)01 natural sciencesResearch Communicationslcsh:ChemistryCrystalchemistry.chemical_compoundFuranHirshfeld surface analysisGeneral Materials SciencebiologyHydrogen bondGeneral ChemistryCondensed Matter PhysicsCaesalpinia pulcherrimabiology.organism_classificationTerpenoid0104 chemical sciencesCaesalpinia pulcherrimapulcherrimin CCrystallographyelectrostatic potentiallcsh:QD1-999chemistryActa Crystallographica Section E Crystallographic Communications
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