A new isopimarane diterpenoid from Vellozia pusilla pohl (velloziaceae)

Abstract

Um novo diterpenóide com esqueleto isopimarano, 8(9),15-isopimarandien-7-ona-20,12-carbolactona (1), foi isolado da espécie Vellozia pusilla Pohl. A elucidação estrutural desta substância baseou-se em dados de UV, IV, EM, RMN 1 H e 13 C uni e bidimensional e comparação com dados de substâncias modelos.A new isopimarane diterpenoid, 8(9),15-isopimaradien-7-one-20,12-carbolactone (1), was isolated from Vellozia pusilla Pohl. Its structure was established on the basis of UV, IR, MS, uni and bidimensional 1 H and 13 C NMR and comparison of the data with model compounds.

In Vitro study of Vellozia pusilla pohl (Velloziaceae), a Brazilian plant species: antitumoral activity and labeling of blood elements

“…Although plants in the Velloziaceae family live under conditions of high solar irradiation and low water availability, they show surprising longevity (Ayensu, 1973). Previous studies on the specie Vellozia pusilla Pohl have afforded several terpenoids, including isopimarane nor-diterpenoid and diterpenoids, cleistantane diterpenoids and lupenone (Pinto et al,1988;Dantas et al, 2003). There are reports concerning the use of some species of Velloziaceae in Brazilian and African folk medicine (Ayensu, 1973).…”