Antibacterial Diterpenoids from Fabiana densa var. ramulosa
作者:Silvia Erazo、Mercedes Zaldívar、Carla Delporte、Nadine Backhouse、Paola Tapia、Eliana Belmonte、Franco Delle Monarche、Rosa Negrete
DOI:10.1055/s-2002-26746
日期:2002.4
A biologically monitored fractionation of the resinous exudate of Fabiana densa Remy var. ramulosa Wedd. led to the isolation of the two new diterpenes: ent-beyer-15-en-18-O-succinate and ent-beyer-15-en-18-O-oxalate as the unique compounds responsible for the observed antibacterial activity of this extract. Their structures were determined by 1D and 2D NMR spectroscopy.
对密叶香茶菜(Fabiana densa Remy var. ramulosa Wedd.)树脂渗出物的生物监测分馏,分离出两种新的二萜:ent-beyer-15-en-18-O-琥珀酸酯和ent-beyer-15-en-18-O-草酸酯,这两种化合物是这种提取物所具有的抗菌活性的唯一来源。通过一维和二维核磁共振光谱确定了它们的结构。