New diterpenoids from leaves of Guarea macrophylla (Meliaceae)

Lago J.H.G.; Roque N.F.

New diterpenoids from leaves of Guarea macrophylla (Meliaceae)

Tipo

Artigo

Data de publicação

2005

Periódico

Journal of the Brazilian Chemical Society

Citações (Scopus)

7

Autores

Lago J.H.G.
Roque N.F.

Resumo

The hexane phase from the ethanol extract from leaves of Guarea macrophylla (Meliaceae) was submitted to chromatographic separation. These procedures allowed the isolation of one new diterpenoid: 7α-hydroperoxy-isopimara- 8(14),15-diene-2α,3β-diol, one new nor-diterpenoid: 19-nor-isopimara-7,15,4(18)-trien-3-one besides seven known diterpenoids. Their structures were deduced by analysis of spectrometric data and comparison of data described in the literature. ©2005 Sociedade Brasileira de Química.