WO2000058324A1 - PROCEDE DE PREPARATION DU 4'-DEMETHYL -4'- PHOSPHATE-2',3' - BIS PENTAFLUOROPHENOXYACETYL -4',6' -ETHYLIDENE - β-D-GLUCOSIDE D'EPIPODOPHYLLOTOXINE, ET DE SES SELS - Google Patents
PROCEDE DE PREPARATION DU 4'-DEMETHYL -4'- PHOSPHATE-2',3' - BIS PENTAFLUOROPHENOXYACETYL -4',6' -ETHYLIDENE - β-D-GLUCOSIDE D'EPIPODOPHYLLOTOXINE, ET DE SES SELS Download PDFInfo
- Publication number
- WO2000058324A1 WO2000058324A1 PCT/FR2000/000776 FR0000776W WO0058324A1 WO 2000058324 A1 WO2000058324 A1 WO 2000058324A1 FR 0000776 W FR0000776 W FR 0000776W WO 0058324 A1 WO0058324 A1 WO 0058324A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- ethylidene
- formula
- compound
- demethyl
- epipodophyllotoxin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
- C07H17/00—Compounds containing heterocyclic radicals directly attached to hetero atoms of saccharide radicals
- C07H17/04—Heterocyclic radicals containing only oxygen as ring hetero atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
- C07H15/00—Compounds containing hydrocarbon or substituted hydrocarbon radicals directly attached to hetero atoms of saccharide radicals
- C07H15/20—Carbocyclic rings
- C07H15/207—Cyclohexane rings not substituted by nitrogen atoms, e.g. kasugamycins
Definitions
- the present invention relates to a new process for the preparation of 4'-demethyl-4'-phosphate-2 ", 3" -bis pentafluorophenoxyacetyl-4 ", 6" -ethylidene- ⁇ -D- epipodophyllotoxin glucoside and its salts, in particular the salt of N-methyl-D-glucamine.
- This process has the advantage of using a stable and crystalline glucoside intermediate and of forming a coupling compound in a very good state of purity to lead, after phosphorylation in position 4 ', to the compound 4'-demethyl- 4'-phosphate -2 ", 3" -bis pentafluorophenoxyacetyl-4 ", 6" -ethylidene- ⁇ -D-glucoside of epipodophyllotoxin in which the water-soluble methylglucamine salt is used as an anticancer agent.
- 4'-demethyl-4'-phosphate-2 ", 3" -bispentafluorophenoxyacetyl-4 ", 6" - ethylidene- ⁇ -D-epipodophyllotoxin glucoside of formula 1 in the form of methylglucamine salt is an anticancer compound whose structure, preparation and its pharmacological activity have been shown and published in patent WO 96/12727.
- N-Methyl-D-Glucamine This compound consists of a lignan part of the epipodophyllotoxin type and an osidic part in particular 4,6-ethylidene-2,3-bis pentafluorophenoxyacetyl- ⁇ -D-glupyranose.
- Position 4 ′ carries a phosphate group which gives it both aqueous solubility by the formation of a salt with, for example N-methylglucamine, but also very important pharmacological activity.
- the synthesis of this compound described in patent WO 96/12727 was carried out by a 12-step process, using etoposide as a synthesis intermediate.
- the etoposide itself was prepared according to a 6-stage process which was patented in EP 445021. This process involved 1-O-carbobenzyloxy-2,3-bisphenoxyacetyl-4,6-ethylidene- ⁇ -D-glucopyranoside , which after hydrogenolysis and by coupling with 4'-phenoxyacetyl-4'-demethylepipodophyllotoxin provided, after deprotection of the phenoxyacetyl groups, etoposide.
- This intermediate etoposide was still subjected to a 6-stage treatment, consisting of protection in 4 'with a carbobenzyloxy group (Z), then esterification with pentafluorophenoxyacetyl chloride, followed by the hydrogenolysis of the group Z in 4'.
- the phosphate function was introduced by the action of POCI 3 followed by hydrolysis. Then obtained after purification the phosphate derivative allowing its salification with N-methylglucamine for aqueous solubility and for its activity.
- This method is long and requires numerous stages of synthesis which are sources of impurities, as well as a hydrogenolysis stage at an early stage of the synthesis, which requires treating large quantities of product and of precious catalyst such as Palladium.
- this hydrogenolysis step provided a compound, although of sufficient stability, which had to be engaged without too much delay in the coupling step, to avoid anomerization, which would inevitably lead to the presence of the ⁇ -isomer glucoside.
- the present invention relates to the preparation of 4'-demethyl-4'-phosphate- 2 ", 3" -bispentafluorophenoxyacetyl-4 ", 6" -ethylidene- ⁇ -D-glucoside of epipodophyllotoxin and its salts, in particular the salt of N-methyl-D-glucamine.
- This synthesis consists in the preparation of the intermediate of formula 2:
- This compound has the particularity of being very stable, crystalline, recrystallisable and therefore very purifiable, and can be stored under usual conditions, without special precautions.
- the powder obtained can be stored at room temperature in the laboratory or workshop for a few months or more, without alteration. The yields are satisfactory and the process is easy to implement.
- the use of the triethylsilyl group on the anomeric alcohol is important and particular. It is found, remarkably, the great stability of this group with respect to its trimethylsilyy analog. Indeed, the compound of formula 2 having a trimethylsilyie group in the anomeric position, is not conserved. Its chemical sensitivity makes it unsuitable for practical industrial use.
- the advantage of this new preparation method apart from using a stable compound as a key intermediate, is that the number of steps is limited, and that a convergent synthesis strategy is used, rather than linear, which which is very economical industrially.
- the compound of formula 2 is prepared from ethylidene-D-glucose by esterification of the 3 alcohol functions in position 1, 2 and 3 with pentafluorophenoxyacetyl chloride in methylene chloride and pyridine at 0 ° C .
- a characteristic of the synthesis is also the purification of pentafluorophenoxy acetic acid, which is derived from pentafluorophenol. This phenol can be contaminated with tetrafluoro derivatives.
- analogues tetrafluorophenoxyacetic acids.
- This purification is carried out by recrystallization of the piperazine salt of the crude acid in stoichiometric quantity (1/2 mole of piperazine for one mole of pentafluoro phenoxyacetic acid to be purified) in the methanol-water mixture, then acidification and filtration of the pure pentafluorophenoxyacetic acid.
- the ethylidene glucose thester thus obtained consists of the mixture of the 2 anomers ⁇ and ⁇ in position 1. This mixture is selectively hydrolyzed in position 1 in the presence of ethanolamine in THF to lead to the mixture of the 2 corresponding anomers.
- This compound is then opposed to dibenzylated diisopropyl phosphoramidite in the presence of 1 / - / - tetrazole, or else pyridinium hydrochloride, in THF.
- the phosphite obtained is directly oxidized by hydrogen peroxide to dibenzylated phosphate.
- This intermediate is then hydrogenolysed to lead to the acid phosphate derivative.
- This compound may be salified, with N-methyl-D- glucamine.
- the compound described in patent WO 96/12727 is thus obtained directly and more effectively than by the method described in this latter patent.
- Step 2 1, 2,3-Tri pentafluorophenoxyacetyl-4,6-ethyldidene-D-glucopyranose.
- reaction medium After stirring for 1 h, the reaction medium is poured onto a solution of 1N hydrochloric acid (150 ml). The organic phase, separated, is dried over sodium sulfate, filtered, evaporated in vacuo to providing the triester, as a mixture of the two anomers, which is used directly in the next step.
- Step 3 2,3-Dipentafluorophenoxyacetyl-4,6-ethylidene-D-glucopyranose.
- H-5 4.20 (dd, 1 H, H-6eq), 4.69 (q, 1 H, H-7), 4.79 (s, 4H, OC / - / 2 CO), 4.94 (m, H-2 , H-1 anomer ⁇ ), 5.30 (t, H-3 anomer ⁇ ), 5.47 (d, H-1 anomer ⁇ ), 5.59 (t, H-3 anomer ⁇ ).
- Step 4 1-Triethylsilyl-2,3-dipentafluorophenoxyacetyl-4,6-ethylidene- ⁇ -D- glucopyranoside
- Step 5 4 ', 2 ", 3" -tripentafluorophenoxyacetyl-4 ", 6” -ethylidene- ⁇ -D-glucopyranoside of 4'-demethyl epipodophyllotoxin.
- the organic phase is again washed with 400 ml of water, dried over Na 2 SO 4 ,. and concentrated to obtain an oil which crystallizes in a pentanol-2 / water mixture, giving 60 g of product in the form of a white powder which will be used as it is for the next step.
- Step 6 2 ", 3" -Dipentafluorophenoxyacetyl-4 ", 6" -ethylidene- ⁇ -D-giucopyranoside of 4'-demethyl epipodophyllotoxin.
- Step 7 2 ", 3" -Dipentafluorophenoxyacetyl-4 ", 6" -ethylidene- ⁇ -D-glucopyranoside of 4'-demethyl-4'-dibenzylphosphate epipodophyllotoxin.
- 1.35 g of anhydrous 1H-tetrazole are added to a solution of 5 g of compound from the preceding step and 3.3 g of dibenzylated diisopropyl phosphoramidite in 75 ml of THF under nitrogen, at ordinary temperature. After 15 min of reaction, the medium is cooled to 0 ° C and 5 ml of a 30% hydrogen peroxide solution are introduced.
- Tetrazole can be replaced by anhydrous pyridinium hydrochloride to lead in an identical manner to the same dibenzylphosphate compound:
- a solution of 136 g of the compound obtained in previous step 6 in 1.5 L of THF 87 ml are successively added dibenzylated diisopropyl phosphoramidite and 45 g of anhydrous pyridinium hydrochloride.
- the reaction medium is cooled and 136 ml of a 32% hydrogen peroxide solution is added.
- the reaction medium is further stirred for 1 hour at this temperature.
- a sodium thiosulfate solution is then added and the reaction medium is extracted with ethyl ether.
- An identical chromatographic treatment provides the desired dibenzylphosphate derivative with a yield of 65%.
- Step 8 2 ", 3" -dipentafluorophenoxyacetyl-4 ", 6” -ethylidene- ⁇ -D-glucopyranoside of 4'-phosphate-4'-demethyl epipodophyllotoxin.
- N-methylglucamine salt Formation of the N-methylglucamine salt: Addition of a solution of 17 g of N-methyl-D-glucamine in solution in 39 L of water to a solution of 50 g of the preceding free phosphate derivative, in a mixture of 311 ml acetone and 830 mL of ethanol, with stirring. After filtration, white crystals are obtained which are washed with heptane. After drying, 61 g (R dt 91%) of the N-methyl-D-glucamine salt, having a melting point of 130 ° C, are obtained.
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biochemistry (AREA)
- Biotechnology (AREA)
- General Health & Medical Sciences (AREA)
- Genetics & Genomics (AREA)
- Molecular Biology (AREA)
- Saccharide Compounds (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
Description
Claims
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP00915233A EP1165581B1 (fr) | 1999-03-29 | 2000-03-29 | Procede de preparation du 4'-demethyl -4'- phosphate-2",3" - bis pentafluorophenoxyacetyl -4",6" -ethylidene - beta-d-glucoside d'epipodophyllotoxine, et de ses sels |
| AU36615/00A AU3661500A (en) | 1999-03-29 | 2000-03-29 | Method for the production of 4'-demethyl - 4'-phosphate-2",3" - bis pentafluorophenoxyacetyl 4",6"-ethylidene - beta-d- glucoside epipodophyllotoxin and the salts thereof |
| DE60001225T DE60001225D1 (de) | 1999-03-29 | 2000-03-29 | Verfahren zur herstellung von epipodophyllotoxine-4'-demethyl-4'-phosphat-2",3"-bis pentafluorphenoxyacetyl-4",6"-ethyliden- beta-d-glucosid und seine salzen |
| CA002367442A CA2367442A1 (fr) | 1999-03-29 | 2000-03-29 | Procede de preparation du 4'-demethyl -4'- phosphate-2",3" - bis pentafluorophenoxyacetyl -4",6" -ethylidene - .beta.-d-glucoside d'epipodophyllotoxine, et de ses sels |
| AT00915233T ATE231157T1 (de) | 1999-03-29 | 2000-03-29 | VERFAHREN ZUR HERSTELLUNG VON EPIPODOPHYLLOTOXINE-4'-DEMETHYL-4'-PHOSPHAT-2ß, ß-BIS PENTAFLUORPHENOXYACETYL-4ß,6ß-ETHYLIDEN- BETA-D- GLUCOSID UND SEINE SALZEN |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9903877A FR2791682B1 (fr) | 1999-03-29 | 1999-03-29 | Procede de preparation du 4'-demethyl-4'-phosphate-2", 3"-bis pentafluorophenoxyacetyl-4",6"-ethyldidene-beta-d- glucoside d'epipodophyllotoxine, et de ses sels |
| FR99/03877 | 1999-03-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2000058324A1 true WO2000058324A1 (fr) | 2000-10-05 |
Family
ID=9543738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR2000/000776 Ceased WO2000058324A1 (fr) | 1999-03-29 | 2000-03-29 | PROCEDE DE PREPARATION DU 4'-DEMETHYL -4'- PHOSPHATE-2',3' - BIS PENTAFLUOROPHENOXYACETYL -4',6' -ETHYLIDENE - β-D-GLUCOSIDE D'EPIPODOPHYLLOTOXINE, ET DE SES SELS |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP1165581B1 (fr) |
| AT (1) | ATE231157T1 (fr) |
| AU (1) | AU3661500A (fr) |
| CA (1) | CA2367442A1 (fr) |
| DE (1) | DE60001225D1 (fr) |
| FR (1) | FR2791682B1 (fr) |
| WO (1) | WO2000058324A1 (fr) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2859724A1 (fr) * | 2003-09-16 | 2005-03-18 | Pf Medicament | Compose cristallin sous forme libre ou hemiethanolate de 4'-demethyl-4'-phosphate-2",3"-bispentafluorophenoxyacetyl- 4",6"-ethylidene-beta-d-glucoside d'epipodophyllotoxine |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0445021A2 (fr) * | 1990-02-27 | 1991-09-04 | Pierre Fabre Medicament | Tris acyl-2",3",4' éthylidène-4",6"beta-D-glucopyranosides leur préparation et leur utilisation pour la préparation d'éthylidène 4",6" beta-D-glucopyranoside de déméthyl-4' épipodophyllotoxine |
| WO1996012727A1 (fr) * | 1994-10-21 | 1996-05-02 | Pierre Fabre Medicament | Derives hydrosolubles d'epipodophyllotoxine, leur procede de preparation, leur utilisation a titre de medicament, et leur utilisation destinee aux traitements anticancereux |
-
1999
- 1999-03-29 FR FR9903877A patent/FR2791682B1/fr not_active Expired - Fee Related
-
2000
- 2000-03-29 AU AU36615/00A patent/AU3661500A/en not_active Abandoned
- 2000-03-29 AT AT00915233T patent/ATE231157T1/de not_active IP Right Cessation
- 2000-03-29 WO PCT/FR2000/000776 patent/WO2000058324A1/fr not_active Ceased
- 2000-03-29 CA CA002367442A patent/CA2367442A1/fr not_active Abandoned
- 2000-03-29 DE DE60001225T patent/DE60001225D1/de not_active Expired - Lifetime
- 2000-03-29 EP EP00915233A patent/EP1165581B1/fr not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0445021A2 (fr) * | 1990-02-27 | 1991-09-04 | Pierre Fabre Medicament | Tris acyl-2",3",4' éthylidène-4",6"beta-D-glucopyranosides leur préparation et leur utilisation pour la préparation d'éthylidène 4",6" beta-D-glucopyranoside de déméthyl-4' épipodophyllotoxine |
| WO1996012727A1 (fr) * | 1994-10-21 | 1996-05-02 | Pierre Fabre Medicament | Derives hydrosolubles d'epipodophyllotoxine, leur procede de preparation, leur utilisation a titre de medicament, et leur utilisation destinee aux traitements anticancereux |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2859724A1 (fr) * | 2003-09-16 | 2005-03-18 | Pf Medicament | Compose cristallin sous forme libre ou hemiethanolate de 4'-demethyl-4'-phosphate-2",3"-bispentafluorophenoxyacetyl- 4",6"-ethylidene-beta-d-glucoside d'epipodophyllotoxine |
| WO2005028492A1 (fr) * | 2003-09-16 | 2005-03-31 | Pierre Fabre Medicament | COMPOSE CRISTALLIN SOUS FORME LIBRE OU DE SOLVATE AVEC L’ETHANOL DE 4'-DEMETHYL-4'-PHOSPHATE-2',3'-BISPENTAFLUOROPHENOXYACETYL-4',6'-ETHYLIDENE-β-D-GLUCOSIDE D'EPIPODOPHYLLOTOXINE |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2367442A1 (fr) | 2000-10-05 |
| EP1165581A1 (fr) | 2002-01-02 |
| EP1165581B1 (fr) | 2003-01-15 |
| DE60001225D1 (de) | 2003-02-20 |
| FR2791682A1 (fr) | 2000-10-06 |
| ATE231157T1 (de) | 2003-02-15 |
| FR2791682B1 (fr) | 2001-06-22 |
| AU3661500A (en) | 2000-10-16 |
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