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The rhizome of Curcuma kwangsiensis S. G. Lee et C. F. Liang is a Traditional Chinese Medicine indexed in Chinese Pharmacopoeia. A new compound, 4,5-seco-pyrocurzerenone (1), was isolated from the species along with sixteen sesquiterpenoids (2-17). Their structures were elucidated based on the spectroscopic evidence, mainly including NMR and HRESIMS. All the compounds were reported for the first time from this species.

A New 4,5-Secofurancadinene from the Rhizome of Curcuma kwangsiensis