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2 178 302

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C1

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IPC

(21) (22)

Application

2000127056/14, 2000-10-27

(24)

Start date

2000-10-27

(22)

Actual filing date

2000-10-27

(45)

Published

2002-01-20

(72)

Inventor

Tankhaeva L.M.Nikolaeva G.G.Dargaeva T.D.Tsyrenzhapov A.V.Nikolaev S.M.Ubeeva I.P.Sambueva Z.G.

(73)

Holder

Institut Obshchej I Ehksperimental'Noj Biologii So Ran

METHOD TO OBTAIN 1-HYDROXY-2,3,4,5-TETRAMETOXYXANTHONE OF CHOLAGOGUE AND HEPATOPROTECTIVE ACTION Russian patent published in 2002 - IPC

Abstract RU 2178302 C1

FIELD: medicine. SUBSTANCE: innovation deals with a plant raw material presented by galenia grass which is thrice extracted by 70%-ethanol at 1: 10 raw material : extragent ratio. Extragent is contacted with hexane. Hexane extract is chromatographed upon silica gel column. Evaporation, dissolving hexane at heating up, filtration and recrystallization out of ethanol are then conducted. EFFECT: increased product output. 2 tbl

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RU 2 178 302 C1

Authors

Tankhaeva L.M.

Nikolaeva G.G.

Dargaeva T.D.

Tsyrenzhapov A.V.

Nikolaev S.M.

Ubeeva I.P.

Sambueva Z.G.

Dates

2002-01-20—Published

2000-10-27—Filed

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