Pimarane Diterpenes and a Sesquiterpene from Salzmmania nitida

Abstract

Two new terpenoids, (+)-3-oxo-thermarol and 11-acetoxyeudesman-4alpha-methyl-5alpha-ol along with the (+)- thermarol were isolated from the aerial parts of Salzmmania nitida. The structures and unambiguous ¹H and 13C chemical shift assignments were established by spectroscopic means, including homo and heteronuclear techniques.O estudo fitoquímico de Salzmmania nitida D.C. (Rubiaceae) conduziu ao isolamento e identificação de dois novos terpenoides, (+)-3-oxo-thermarol e 11-acetoxi-4alfa-metil-5alfa-eudesmanol além do (+)-termarol. As estruturas foram estabelecidas com base na análise de espectros de IV, Massas e RMN de ¹H e 13C (1D e 2D).

Keywords

• Salzmmania nitida
• Rubiaceae
• diterpenos
• eudesmano
• Salzmmania nitida
• Rubiaceae
• diterpenes
• eudesmane