A New Abietane Diterpenoid from Orthosiphon wulfenioides

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A new abietane diterpenoid, orthosiphonol (11-methoxy-12, 14-dihydroxy-8, 11, 13-abieta trien-7-one) (1) together with known 11-hydroxysugiol (2) were isolated from Orthosiphon wulfenioides. Their structures were determined on the basis of spectroscopic evidence.
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