T. Carrillo-hernandez et al., Acenaphthenic hopanoids, a novel series of aromatised triterpenoids occurring in crude oil, CHEM COMMUN, (19), 2001, pp. 1976-1977
A series of diaromatic 8,14-secohopanoids of microbial origin has been char
acterized in a petroleum by NMR studies, disclosing novel geochemical trans
formations.