Germacrane derivatives from Santolina pinnata subsp. neapolitana.

From the aerial parts of Santolina pinnata subsp. neapolitana, one new and four known germacrane derivatives were isolated. The new compound was characterized as 1α,10β-epoxy-7aH-germacr-4(15)-ene-2β,5α,6β-triol by spectral methods.