Abstract
AbstractThree new phenolic tricyclic diterpenoids, including two sempervirane diterpenoids, hispidanols A and B (1 and 2, resp.), and one totarane diterpenoid, totara‐8,11,13‐triene‐13→16‐hemiacetal (3), along with 14 known compounds, 4–17, were isolated from the AcOEt‐soluble fraction of the 70%‐acetone extract of rhizomes of Isodon hispida. Their structures were elucidated based on the analyses of extensive spectroscopic data and physicochemical properties.
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