N. Kawahara et al., NITIDASIN, A NOVEL SESTERTERPENOID, FROM THE PERUVIAN FOLK MEDICINE HERCAMPURI (GENTIANELLA-NITIDA), Chemical and Pharmaceutical Bulletin, 45(10), 1997, pp. 1717-1719
The structure of a novel sesterterpenoid designated as nitidasin (1),
isolated from the whole plant of Gentianella nitida, has been determin
ed by extensive spectroscopic investigation and X-ray analysis.