B. Dinda et al., NAPHTHOQUINONES FROM THE ROOTS OF PLUMBAGO-ROSEA LINN, Indian journal of chemistry. Sect. B: organic chemistry, including medical chemistry, 34(6), 1995, pp. 525-528
Isolation of a new and novel binaphthoquinone designated as roseanone
along with known naphthoquinones, droserone (3), elliptinone (5) and z
eylanone (4) is reported from the phenolic fraction of the ethyl aceta
te extract of the roots of Plumbago rosea Linn. The structure of rosea
none has been elucidated as 1 by spectroscopic and chemical studies.