Diterpenos tipo abietano isolados de Plectranthus barbatus Andrews

Química Nova

Roberto L. De Albuquerque²  Marta R. Kentopff²  Maria Iracema L. Machado²  Maria Goretti V. Silva²  Francisco José De A. Matos²  Selene M. Morais¹  Raimundo Braz-filho¹ 

[1] ,Universidade Federal do Ceará Departamento de Química Analítica e Físico-Química Departamento de Química Orgânica e InorgânicaFortaleza CE ,Brasil

关键词: Plectranthus barbatus;    Labiatae;    abietane diterpenoids;   

DOI  :  10.1590/S0100-40422007000800016

来源: SciELO

【 摘 要 】

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.

【 授权许可】

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