From the aerial parts of Salvia ballotiflora, eleven diterpenoids were isolated; among them, four icetexanes and one abietane (1-5) are reported for the first time. Their structures were established by spectroscopic means, mainly ¹H- and 13C-NMR, including 1D and 2D homo- and hetero-nuclear
Salpratlactones A (1) and B (2), a pair of abietane cis-trans tautomers from Salvia prattii, were identified as the first naturally occurring agonists of T-type calcium channel (TTCC). Structurally, 1 and 2 were featured by unique 6/5 carbocyclic