PT101111B - Processo para a preparacao de diacetilreina e composicao farmaceutica que a contem - Google Patents
Processo para a preparacao de diacetilreina e composicao farmaceutica que a contem Download PDFInfo
- Publication number
- PT101111B PT101111B PT10111192A PT10111192A PT101111B PT 101111 B PT101111 B PT 101111B PT 10111192 A PT10111192 A PT 10111192A PT 10111192 A PT10111192 A PT 10111192A PT 101111 B PT101111 B PT 101111B
- Authority
- PT
- Portugal
- Prior art keywords
- diacetylrein
- glucoside
- liquid
- process according
- extraction
- Prior art date
Links
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- 230000008569 process Effects 0.000 title claims abstract description 28
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- 238000000638 solvent extraction Methods 0.000 claims abstract description 10
- -1 1,8-dihydroxyanthrone glucosides Chemical class 0.000 claims abstract description 9
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- 125000002791 glucosyl group Chemical group C1([C@H](O)[C@@H](O)[C@H](O)[C@H](O1)CO)* 0.000 claims abstract description 5
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- 238000002560 therapeutic procedure Methods 0.000 description 1
- 210000001685 thyroid gland Anatomy 0.000 description 1
- AXZWODMDQAVCJE-UHFFFAOYSA-L tin(II) chloride (anhydrous) Chemical compound [Cl-].[Cl-].[Sn+2] AXZWODMDQAVCJE-UHFFFAOYSA-L 0.000 description 1
- WCTAGTRAWPDFQO-UHFFFAOYSA-K trisodium;hydrogen carbonate;carbonate Chemical compound [Na+].[Na+].[Na+].OC([O-])=O.[O-]C([O-])=O WCTAGTRAWPDFQO-UHFFFAOYSA-K 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 210000000689 upper leg Anatomy 0.000 description 1
Landscapes
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Saccharide Compounds (AREA)
- Steroid Compounds (AREA)
Description
Claims (4)
- Processo para a preparação de diacetil a fórmula ·“ '·_· r*3.q-e—* completamente isenta de componentes de aloemodina, caracteri.....zado por:A) se submeter reína-9.....antrona-8-glucósi- do contendo componentes de aloemodina a uma extração liquido—.....liquido, com um solvente orgânico polar apenas parcialmente miscível com água, a partir da fase aquosa,Jf ’ « '3*B) se oxidar, apôs a extracção, o reina.....-9-antrona-8.....glucósido, contido na fase aquosaa reina.....8.....glucósidoC) se remover o ção 8 do reina.....8-glucósido, em meio na posiácidoeD) se acetilar a.reina obtida, obtendo-se assim a diacetilreina..29 .....Processo para a preparação de diacetilreina, completamente isenta de componentes de aloernodina, ca racterizado porA) se submeter urna misturei de senosidos a uma redução para se obterem os compostos correspondentes reina-9-antrona--8.....glucósido e aloernodinan trona.....8.....glucósido,B) se efectuar urna extracção liquido-liquido dos compostos obtidos, corn um solvente orgânico polar apenas parcialmente miscivel com agua, a partir da fase aquosa ,C) se oxidar os compostos reina-9-antrona.....8-glucósido, contidos na fase aquosa, aos compostos antraqui η o n a co r r e sponden tes,D) se remover o grupo glucosilo na posi..... ção 8 do composto antraquinónico,· em meio ácido, eE) se acetilar a 1,8.....di-hidroxiantraqui..... nona obtida ã diacetilreina..Processo de acordo com a reivindicação
- 2, caracterizado por no passo A se utilizar como agente de redu.....ção um ditionito de metal alcalino...... 4a ....Processo de acordo com a reivindicação
- 3, caracterizado por se efectuar a reacção a um valor de pH de 7 a 9..- 5S .....Processo de acordo com qualquer das rei.....vindicações 2 a 4, caracterizado por se repetir várias vezes a redução....... 63 .....Processo de acordo com qualquer das reivindicações anteriores, caracterizado por se utilizar corno solvente orgânico polar acetona ou 2.....butanol, para a extracçao líquido-líquido....... 7 a .....Processo de acordo com qualquer das reivindicações anteriores, caracterizado por se utilizar para a extracçao líquido......líquido uma fase aquosa cujo potencial redox seja -210 mV ou mais negativo....... 83 .....Processo de acordo com qualquer das rei.....vindicações anteriores, caracterizado. por se efectuar a ex.....tracção líquido......líquido em contracorrente..- 93 .....Processo de acordo com qualquer das reivindicações anteriores, caracterizado por se utilizar como
- 4 ΐ agente cie oxidação um sal de ferro III, de preferência sulfato de ferro III....... 10S .....Processo de acordo, com a reivindicação 2, caracterizado por se obter a mistura de senosidos por extrac— ção a partir da droga sena, com metanol aquoso, de preferên.....cia na presença de um tampão,, ·· 11Ê ····Processo. de acordo com qualquer das reivindicações anteriores, caracterizado por se recristalizar a diacetilreína obtida, transformando a diacetilreína num sal de metal alcalino, tornando este sal num alcool-C-j-¾ aquoso, e reprecipitando a diacetilreína por adição de um ácido...... 12É Diacetilreína completamente livre de derivados de aloemodina...... 13â .....C o rn p os i ção f a r rn a c ê u t i. ca, c aracterizado por conter como ingrediente activo diacetilreína, de acordo com a reivindicação 13, conforme o caso, em conjunto com veículos e aditivos farmacêuticos usuais..
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PT10111192A PT101111B (pt) | 1992-12-07 | 1992-12-07 | Processo para a preparacao de diacetilreina e composicao farmaceutica que a contem |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PT10111192A PT101111B (pt) | 1992-12-07 | 1992-12-07 | Processo para a preparacao de diacetilreina e composicao farmaceutica que a contem |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| PT101111A PT101111A (pt) | 1994-06-30 |
| PT101111B true PT101111B (pt) | 1999-10-29 |
Family
ID=20085230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PT10111192A PT101111B (pt) | 1992-12-07 | 1992-12-07 | Processo para a preparacao de diacetilreina e composicao farmaceutica que a contem |
Country Status (1)
| Country | Link |
|---|---|
| PT (1) | PT101111B (pt) |
-
1992
- 1992-12-07 PT PT10111192A patent/PT101111B/pt not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| PT101111A (pt) | 1994-06-30 |
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