A chlorine-containing and two 17β-neo-clerodane diterpenoids from Teucrium polium subsp. Vincentinum
作者:Maria C. Carreiras、Benjamín Rodríguez、Franco Piozzi、Giuseppe Savona、María R. Torres、Aurea Perales
DOI:10.1016/s0031-9422(00)97764-1
日期:——
Abstract From the aerial parts of Teucrium polium subsp. vincentinum three new neo-clerodane diterpenoids, teuvincentins A, B and C, have been isolated besides four already known diterpenes (19-acetylgnaphalin, eriocephalin, isoeriocephalin and 3-deacetyl-20- epi -teulanigin) and the flavones cirsiliol and apigenin. The structures of teuvincentin A [(12 S , 20 S )-20- O -acetyl-19-acetoxy-18-chloro-15
摘要来自 Teucrium polium subsp. 的地上部分。vincentinum 除了四种已知的二萜(19-乙酰脑啡肽、eriocephalin、isoeriocephalin 和 3-deacetyl-20-epi-teulanigin)和黄酮 cirsiliol 之外,还分离了三种新的新克罗丹二萜类化合物 teuvincentins A、B 和 C。teuvincentin A [(12 S , 20 S )-20-O-acetyl-19-acetoxy-18-chloro-15,16-epoxy-4α,7-dihydroxy-6-oxo-neo-clerodane-7, 13(16),14-triene-20,12-heemiacetal], B [12 S,20 S )-20-O-乙酰-4α,18;15,16-diepoxy-6α-hydroxy-17β-neo-clerodane