A novel diterpenoid with a rearranged neoclerodane skeleton from Salvia leucantha CAV.

摘要

A new diterpenoid with a rearranged neoclerodane skeleton, spiroleucantholide (compound “S1”), along with four known diterpenoids—salvifaricin (compound “S2”), isosalvipuberulin (compound “S3”), salvileucantholide (compound “S4”), and salviandulin E (compound “S5”)—was isolated from the aerial parts of Salvia leucantha CAV.. The structures were established by spectroscopic methods, including the X-ray analysis of spiroleucantholide (S1).