Pentacyclic TriterpenesTriterpenesOleanolic AcidLantanaSalaciaCentellaRiboflavin SynthaseMimusopsLycopusCelastraceaeBoswelliaMolecular StructureCyclizationForsythiaSpiro CompoundsPlant BarkResins, PlantPlant ExtractsStereoisomerismIndole AlkaloidsHeterocyclic Compounds with 4 or More RingsIntramolecular TransferasesSpectrophotometry, InfraredTerpenesAlkaloidsPlants, MedicinalMagnetic Resonance SpectroscopyPlant LeavesAntineoplastic Agents, PhytogenicApoptosis