Author/Authors :
Su، نويسنده , , Bao-Ning and Takaishi، نويسنده , , Yoshihisa and Tori، نويسنده , , Motoo and Takaoka، نويسنده , , Shigeru and Honda، نويسنده , , Gisho and Itoh، نويسنده , , Michiho and Takeda، نويسنده , , Yoshio and Kodzhimatov، نويسنده , , Olimjon K. and Ashurmetov، نويسنده , , Ozodbek A. Ashurmetov، نويسنده ,
Abstract :
Macrophyllidimers A and B, two novel sesquiterpene dimers in whose structures the two sesquiterpene units are connected by a C–C bond directly, have been isolated from the bark of Inula macrophylla. Their structures were determined on the basis of spectral evidence. The structure of macrophyllidimer B was finally confirmed by X-ray analysis. The possible biosynthetic pathways of macrophyllidimers A and B are also discussed.
Keywords :
COMPOSITAE , NMR data , X-ray analysis , macrophyllidimers A and B , Inula macrophylla , sesquiterpene dimer
