Structures of scutellones D and E determined from X-ray diffraction, spectral and chemical evidence. Neoclerodane-type diterpenoids from scutellaria rivularis WALL.

Abstract

A new neoclerodane-type diterpenoid lactone, scutellone E, together with a known compound, scutellone D (scuterivulactone D), has been isolated from aerial parts of Scutellaria rivularis WALL. Their structures have been determined from X-ray diffraction, spectral and chemical evidence.