EstersCarboxylic AcidsAmino Acids, CyclicMolecular StructureStereoisomerismProdrugsCarboxylic Ester HydrolasesFumaratesMagnetic Resonance SpectroscopyEthylenesFatty AcidsAzetidinecarboxylic AcidCholesterol EstersChromatography, High Pressure LiquidFormic Acid EstersAcetobacterCoumaric AcidsPhthalic AcidsSkin Lightening PreparationsAmino AcidsStructure-Activity RelationshipPyrrolidonecarboxylic AcidGas Chromatography-Mass SpectrometryChemistry Techniques, SyntheticEsterificationHydrolysisAzetinesGranuloma AnnulareChromatography, Thin LayerPhenazinesKineticsCaffeic AcidsSpectrometry, Mass, Fast Atom BombardmentHydrogen-Ion ConcentrationChemistryDiospyrosEsterasesMass SpectrometryLyasesChemical PhenomenaCinnamatesChromatography, GasIndicators and ReagentsDermatologic Agents