Organizing co mmittee

1
), luteolin (
2
), kaempferol (
3
) and rhamnocitrin-
3-O-β-glucoside (
4
) were isolated from the chloroform fraction. 
Compounds 
1-4
from 
O. rosea
were isolated for the first time. 
Apigenin and luteolin have anti-carcinogenic and anti-inflammatory properties. 
Rhamnocitrin-3-
O
-β-isoramninoside protects against DNA damage in human 
lymphoblastoid cells and enhances antioxidant activity. 
 
 
O
OH
O
OH
HO
O
OH
O
OH
H
3
CO
O
O
OH
OH
HO
OH
1
2
3
4

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Poster presentation 
136 
STEROLS OF Oxytropis rosea 
 
Sh.A. Sulaymonov
1
, B.D. Komilov
2
, K.A. Eshbakova
2
, G.O. Mamajanov
1
. Sh.V. 
Abdullayev
1 
 
1) Namangan State University, Namangan, Uychi st., 316, 160119
2) S.Yu. Yunusov Institute of the Chemistry of Plant Substances Academy of sciences of 
the Republic of Uzbekistan st. Mirzo-Ulugbek, 77, 100170 Tashkent 
e-mail: [e-mail] 
Oxytropis rosea
plant were collected on the mountain and foothill slopes of the 
Kasansay district of the Namangan region, and this species was identified by O. 
Turgunov, a researcher at the Institute of Botany of the Academy of Sciences of 
Uzbekistan, by comparing the collected plants with the herbariums of the institute. 
Crushed and air-dry raw material (2000 g) was extracted exhaustively with 70% 
alcohol at room temperature. The combined extracts were distilled 
in vacuo
, the 
thickened residue was diluted with water (1:1) and shaken successively with extraction 
gasoline, chloroform, three acetate and 
n
-butanol. 
The ethyl acetate extract was chromatographed on a silica gel column in a 
chloroform-methanol (25:1-6:1) gradient system. As a result of chromatographic 
separation, four compounds β-stigmasterol (