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2 067 453

(13)

C1

(51)

IPC

(21) (22)

Application

93057354/14, 1993-12-24

(22)

Actual filing date

1993-12-24

(45)

Published

1996-10-10

(72)

Inventor

Ivakhno S.Ju.Golovanova L.V.Stanilovskaja E.V.

(73)

Holder

Aktsionernoe Obshchestvo Zakrytogo Tipa

METHOD OF SANGUIRITRINE PREPARING Russian patent published in 1996 - IPC

Abstract RU 2067453 C1

FIELD: chemical-pharmaceutical industry. SUBSTANCE: surface part of plant (Macleaya cordata Will.) is extracted with organochlorine solvent by multistep procedure in alkaline medium, reextraction with sulfuric acid aqueous solution followed by aqueous phase feeding to filtration, washing and drying of product. Organochlorine solvent is chloroform and extraction is carried out by 9 stages (for 30 min each one) at stirring, at phase ratio 1:7.5. For reextraction 1/3 reaction volume is fed and reextraction is carried out for 15 min at intensive stirring. After filtration of the end product crystals mother liquor is recovered to reextraction stage and ratio 1:7.5 at extraction stage is maintained by recovery of organic phase from reextraction stage. EFFECT: improved method of sanguiritrine preparing. 1 tbl

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RU 2 067 453 C1

Authors

Ivakhno S.Ju.

Golovanova L.V.

Stanilovskaja E.V.

Dates

1996-10-10—Published

1993-12-24—Filed

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