Clematis chinensis

Osbeck is a popular medicinal plant. Seven known compounds

pinoresinol (

1

)

epipinoresinol (

2

)

matairesinol (

3

)

salicifoliol (

4

)

3

4

5-trihydroxybenzoic acid (

5

)

4hydroxy3

5dimethoxybenzoic acid (

6

)

and 3hydroxy 4 methoxycinnamic acid (

7

) were isolated from the ethyl acetate extract of

Clematis chinensis

Osbeck by using the flash silica gel column chromatography and preparative high performance liquid chromatography. Their structures were elucidated mainly on the basis of NMR and MS data. These compounds could be fast and accurately detected from the extract by using HPLC and GCMS analytical methods. Lignans

1

2

3

4

have various bioactivities

and the lignans from

Clematis chinensis

Osbeck should have the potential application in drug development.