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Diterpenos tipo abietano isolados de Plectranthus barbatus Andrews
- Source :
- Química Nova v.30 n.8 2007, Química Nova, Sociedade Brasileira de Química (SBQ), instacron:SBQ, Química Nova, Volume: 30, Issue: 8, Pages: 1882-1886, Published: 2007
- Publication Year :
- 2007
- Publisher :
- FapUNIFESP (SciELO), 2007.
-
Abstract
- Plectranthus barbatus is largely used in the Northeast region of Brazil by the local population for treatment of digestive problems as substitute of boldo (Pneumus boldus). Phytochemical analysis of the leaf extracts of Plectranthus barbatus (Labiatae) cultivated in this region yielded two abietane diterpenoids, cyclobubatusin (1) and barbatusin (2) and a new one named 7beta-acetyl-12-deacetoxycyclobutatusin (3). The structures of the isolated compounds were established by spectral analysis, using mainly mass spectra and ¹H and 13CNMR (1D and 2D). These procedures permitted the assignment of all chemical shifts in the diterpenoids.
Details
- ISSN :
- 01004042
- Volume :
- 30
- Database :
- OpenAIRE
- Journal :
- Química Nova
- Accession number :
- edsair.doi.dedup.....c55bc2330d8d7a3a08ebbd65b0e213dd