Resveratrol derivatif and biological activity

RESVERATROL DERIVATIVE
COMPOUNDS FROM STEM BARK OF
HOPEA AND THEIR BIOLOGICAL
ACTIVITY TEST
Sri Atuna, Nurfina Aznama, Retno Arianingruma,
Takaya Yb, Niwa Masatakeb

a

Department Chemistry education, Universitas Negeri Yogyakarta,
Karangmalang, Depok, Sleman, Yogyakarta, 55281
b Faculty of Pharmacy, Meijo University, Tempaku, Nagoya, Japan

Hopea is one the main genus of
Dipterocarpaceae, consisting of
approximately 100 species and
widely distributed in Indonesia
specially in Kalimantan
The local name is “ cengal,
merawan hitam or pengarawan”.
The plant ussually can be used

as material building, plywood etc.
This family of plant is known to
produce a variety of resveratrol
oligomer
These structures are very
interesting and showed
interesting biological activity, such
as antibacterial, anticancer,
antihepatotoxic, and anti-HIV

Objective

Phytochemical study of resveratrol oligomers from

Hopea mengarawan, H. odorata, and H. nigra

METHOD OF
RESEARCH

Sample: milled dried stem bark

Extraction by organic solvent :
acetone or methanol

EKSTRAK
By fractionated (VLC)

Fr. A

Fr. B

Fr. C

Fr. D

Repeated Chromatography

Activity test
BIOACTIVE
COMPOUNDS


Pure compounds
S-1, S-2, … dst

elusidasion structure by
spektroskopi methode
(UV, FT-IR, NMR, MS)

STRUCTURE
MOLECULE

HOW TO ISOLATED COMPOUNDS FROM NATURAL PRODUCT

Maserated by
organic solvent

removal of the
solvent under
reduced
pressure


Prepared for VLC

VLC

Series of fraction

chromatogram from chromatography coloumn

1
4

2

3

5

Isolated compounds from H. mengarawan (5 Kg)
HO


H

HO

O

OH

H

O H

H

HO
OH
OH

H


HO

OH
HO

OH

HO

H

H

OH
H
OH

HO

OH


H
HO H

OH

OH

OH

heimiol A (200 mg),

balanocarpol (300 mg)

H

H H

HO


H

HO

vaticanol G (70 mg)
OH

OH

HO HO
H

HO

HO

H H

H
H H


O

OH
HO

H
H

OH

O

HO

vaticanol B (200 mg)

Isolated compounds from H. odorata (3,8 Kg)
HO


H
O

HO

H O

HO

OH

H

OH

O H

H

HO


HO
OH
H

OH

H

HO

H

H

H

H

H
HO

HO

OH
OH

OH
OH

hopeaphenol (1500 mg)

balanocarpol (300 mg)
HO

4b

HO

HO

H
A2

10a
H

H

OH

7b
H H

8b

H
A1

HO

1a

7a

HO

12b

O
7a

OH
4c OH

B2
H

8a
A2
12a

8a
HO

H
1a
H

1b

OH
12a

A1

OH

O H

B1

4a

H

H
10a

7b

C1

7c
8b 8c

12d

H

H

OH

B2

O
12b

14b

H

OH

4a

OH
OH

B1
4b HO
OH

D2
OH

8d
7d

C2
12c

OH

O
H

ampelopsin H (250 mg)
hemlesyanol C (120 mg)

D1

4d
OH

Isolated compounds from H. odorata (3,8 Kg)
HO

HO
OH

HO
H

H H

OH

H
OH

HO H

HO

H

HO

vaticanol G (200 mg)

Spektrum UV dan IR Vaticanol B

Spectrum 1H and 13C NMR of vaticanol B
OH
HO HO
HO
HH

OH

H
H
HH

O

HO
OH
HO

H

HO

O
H

OH

Spectrum H-H COSY NMR of vaticanol B
12b

7a

7d

7b

8d 8c

8a

7c

8b

8b

OH
HO
HO

D2

C1

H

HO
7c

D1

H

B1

HO

8d

7d

7a
12b

HO

B2

O
C2

H
8a

H 7a O
H
A1

7b

H

7b

A2

HO

7d
8d

H H
8a
8c

OH

OH

OH

Table 3. Data activity test as hydroxyl radical scavenger
IC50
( g/ml)

Note

Balanocarpol

1802,3

Less active

Heimiol A

4575.3

Less active

Vaticanol G

683.96

active

Vaticanol B

2146.6

Less active

Hopheaphenol

61,8

High active

Ampelopsin H

4840,0

Less active

Hemlesyanol C

425,5

active

Ascorbat acid

83,9

High active

1328,1

Less active

Sample

Butylated Hydroxy Toluene
(BHT)

Table. 4. LC50 of some compounds from steam bark of Hopea
against HeLa-S3 cell

No

Sample

LC50 g/ml

Note

682,16

Less active

1

Balanocarpol

2

Heimiol A

Very high

Not active

3

Vaticanol G

Very high

Not active

4

Ampelopsin H

8,12

Very active

5

Vaticanol B

92,04

Very active

6

Hopeaphenol

1931,52

Less active

7

Hemsleyanol C

531,00

Active

8

Doksorubisin
control)

96,27

Very active

(positif

Table. 5. LC50 of some compounds from steam bark of
Hopea against Raji cell

No

Sample

LC50
g/ml

Note

277,58

Active

1

Balanocarpol

2

Heimiol A

Very high

Not active

3

Vaticanol G

11050,96

Not active

4

Ampelopsin H

91,07

Very active

5

Vaticanol B

107,00

Very active

6

Hopeaphenol

135,64

Active

7

Hemsleyanol C

166,84

Active

8

Doksorubisin (positif control)

156,64

Active

Cytotoxicity test by Hela S3 cell lines

Hela S3 cell lines
before experiment

Hela S3 cell lines
after experiment

Cytotoxicity test by Raji cell lines

Raji cell lines
before experiment

Raji cell lines
after experiment

Conclusion
This research we concluded that resveratrol derivative isolated from the
stem bark of Hopea consist of dimer, trimer, and tetramer resveratrol. Some
compounds have biological activity as antioxidant and cytotoxic effect against
Raji and HeLa-S3 lines cell. Hopeaphenol showed the highest activity as
antioxidant. Whereas ampelopsin H and vaticanol B gives the highest
cytotoxic effect against HeLa-S3 and Raji.

Acknowledgements
This work has been supported by competitive grant (Insentif Riset
Dasar, Ristek- 2008), Ministry Reseach and Technology, Republic of
Indonesia. The authors are grateful to the experimental Garden in
Carita, Pandeglang, Banten, Indonesia and Herbarium Bogoriensis for
supported the sample and identification of the plant specimen.