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Three new neoclerodane diterpenoids, divinatorins A-C (7-9), have been isolated from the leaves of Salvia divinorum. The compounds were identified by spectroscopic methods as derivatives of the antibiotic (-)-hardwickiic acid (10), which was also isolated, along with four other known terpenoids.
Bioactivity-guided fractionation of the leaves of Salvia divinorum has resulted in the isolation of three new neoclerodane diterpenoids: divinatorin D (1), divinatorin E (2), and salvinorin G (3), together with 10 known terpenoids, divinatorin C (4), hardwickiic acid (5), salvinorin-A (6), -B (7),
From the surface exudate of the aerial parts of Salvia wagneriana, three new clerodane diterpenoids, the known hardwickiic acid and 1,10-didehydrosalviarin, were obtained. Two were bis-diterpenoids. Their structures were established by 1D- and 2D-NMR spectroscopic techniques.