Two new α-pyrones and other components from the cladodes ofOpuntia dillenii
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The aqueous ethanolic extract from the fresh cladodes ofOpuntia dillenii HAW. was found to show anti-inflammatory activity. Two new α-pyrones, named opuntioside II (1) and opuntioside III (2), were isolated from the extract together with six known compounds. The structures of the new compounds were determined on the basis of chemical and physicochemical evidence.
Key wordsOpuntia dillenii Anti-inflammatory activity Opuntioside II Opuntioside III α-Pyrones Chemical ingredients
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