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Acylphloroglucinol, Biyouyanagiol, Biyouyanagin B, and Related Spiro-lactones from <i>Hypericum chinense</i>

16 Jul 2009

Abstract excerpt

Biyouyanagiol (1), an acylphloroglucinol-related compound having a unique cyclopenta-1,3-dione moiety, was isolated from a Japanese traditional medicinal plant, Hypericum chinense, together with three new spiro-lactone-related derivatives, biyouyanagin B (2), 5,6-dihydrohyperolactone D (3), and 4-hydroxyhyperolactone D (4). Their structures were established on the basis of spectroscopic evidence. In a...

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PMID: 19606850
DOI: 10.1021/np900109y

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