Spiro CompoundsStereoisomerismMolecular StructureMolecular ConformationOptical Rotatory DispersionMagnetic Resonance SpectroscopyIsatinOptical RotationCyclizationPhosgeneAcetalsApiaceaeNuclear Magnetic Resonance, BiomolecularCircular DichroismPyranocoumarinsDepsipeptidesPoriferaFlavonolignansGarciniaLycopodiumMarine BiologyUrobilinDrug Screening Assays, AntitumorHeterocyclic Compounds, Bridged-RingNorisoprenoidsSpironolactoneAlkaloidsDiterpenesIndansCyclohexanonesSpectrometry, Mass, Fast Atom BombardmentAlstoniaIndicators and ReagentsAlcoholsSesquiterpenesGlycosidesEquileninChromatography, High Pressure LiquidPyransXestospongiaStructure-Activity RelationshipAllantoinMeliaceaeSpectrophotometry, InfraredHeptanesResins, PlantLactonesAlkenesTriterpenesCrystallography, X-RayIndole AlkaloidsLimoninsMineralocorticoid Receptor AntagonistsSpirostansMagnoliaSulfuric Acid EstersAnthraquinonesPlant Components, AerialPlant BarkModels, MolecularFuransLignansBiological ProductsChemistrySpectrophotometry, UltravioletTetramisoleChemical PhenomenaInhibitory Concentration 50RhodiumStreptomycesAtractylodesMass SpectrometryCholestanolsNaphthoquinonesPlant ExtractsMitosporic FungiMonoterpenesAnti-Bacterial AgentsEthers, CyclicFatty AlcoholsChromatography, GasPenicilliumAnthozoaFermentationAscomycotaAquatic OrganismsBenzofuransChromatography, Thin LayerTerpenesEsters