Author/Authors :
Wang، نويسنده , , Wenjing and Wang، نويسنده , , Lei and Huang، نويسنده , , Xiaojun and Jiang، نويسنده , , Ren-Wang and Yang، نويسنده , , Xiaolin and Zhang، نويسنده , , Dongmei and Chen، نويسنده , , Wei-Min and Tang، نويسنده , , Ben-Qin and Wang، نويسنده , , Ying and Zhang، نويسنده , , Xiaoqi and Ye، نويسنده , , Wen-Cai، نويسنده ,
Abstract :
Two pairs of new enantiomeric benzofurans with unusual skeletons, (+)- and (−)-eupachinin A (1), as well as (+)- and (−)-eupachinin B (2), were isolated from the roots of Eupatorium chinense by chiral HPLC. Their structures with absolute configurations were elucidated on the basis of spectroscopic methods, X-ray diffraction analysis, and quantum chemical calculation. The plausible biogenetic pathway of 1 and 2 was also proposed.
