Sesquiterpenoids and tirucallane triterpenoids from the roots of Scorzonera divaricata

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13C NMR Spectra of pentacyclic triterpenoids—a compilation and some salient features

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A new approach for measurement of cytotoxicity using colorimetric assay

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The Assignment of Absolute Stereostructures through Quantum Chemical Circular Dichroism Calculations

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Metabolite Profiling of Sesquiterpene Lactones from Lactuca Species

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