EP0000678A1 - Nouvel intermédiaire de synthèse: l'anthranilate de glycéryle et son procédé de préparation - Google Patents
Nouvel intermédiaire de synthèse: l'anthranilate de glycéryle et son procédé de préparation Download PDFInfo
- Publication number
- EP0000678A1 EP0000678A1 EP78400059A EP78400059A EP0000678A1 EP 0000678 A1 EP0000678 A1 EP 0000678A1 EP 78400059 A EP78400059 A EP 78400059A EP 78400059 A EP78400059 A EP 78400059A EP 0000678 A1 EP0000678 A1 EP 0000678A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- glycerol
- compound
- formula
- preparation
- synthesis
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims description 13
- 238000002360 preparation method Methods 0.000 title claims description 7
- 238000003786 synthesis reaction Methods 0.000 title claims description 7
- 230000015572 biosynthetic process Effects 0.000 title claims description 6
- VHWSRELATOUTAG-UHFFFAOYSA-N 2,3-dihydroxypropyl 2-aminobenzoate Chemical compound NC1=CC=CC=C1C(=O)OCC(O)CO VHWSRELATOUTAG-UHFFFAOYSA-N 0.000 title description 6
- 150000001875 compounds Chemical class 0.000 claims abstract description 10
- 150000003839 salts Chemical class 0.000 claims abstract description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 36
- 238000009833 condensation Methods 0.000 claims description 8
- 230000005494 condensation Effects 0.000 claims description 8
- GWOFUCIGLDBNKM-UHFFFAOYSA-N glafenine Chemical compound OCC(O)COC(=O)C1=CC=CC=C1NC1=CC=NC2=CC(Cl)=CC=C12 GWOFUCIGLDBNKM-UHFFFAOYSA-N 0.000 claims description 7
- 229960001650 glafenine Drugs 0.000 claims description 7
- VYFOAVADNIHPTR-UHFFFAOYSA-N isatoic anhydride Chemical compound NC1=CC=CC=C1CO VYFOAVADNIHPTR-UHFFFAOYSA-N 0.000 claims description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical group [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 6
- 239000003054 catalyst Substances 0.000 claims description 6
- HXEWMTXDBOQQKO-UHFFFAOYSA-N 4,7-dichloroquinoline Chemical compound ClC1=CC=NC2=CC(Cl)=CC=C21 HXEWMTXDBOQQKO-UHFFFAOYSA-N 0.000 claims description 4
- 239000003513 alkali Substances 0.000 claims description 2
- 229910001854 alkali hydroxide Inorganic materials 0.000 claims description 2
- 229910001860 alkaline earth metal hydroxide Inorganic materials 0.000 claims description 2
- 150000007529 inorganic bases Chemical group 0.000 claims 1
- 150000007530 organic bases Chemical class 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 description 9
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 6
- 239000000047 product Substances 0.000 description 4
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- RWZYAGGXGHYGMB-UHFFFAOYSA-N anthranilic acid Chemical class NC1=CC=CC=C1C(O)=O RWZYAGGXGHYGMB-UHFFFAOYSA-N 0.000 description 3
- 239000011541 reaction mixture Substances 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- -1 glyceryl anthranilate hydrochloride Chemical compound 0.000 description 2
- HTKGKUISLUERQX-UHFFFAOYSA-N 2-[(7-chloroquinolin-4-yl)amino]benzoic acid Chemical compound OC(=O)C1=CC=CC=C1NC1=CC=NC2=CC(Cl)=CC=C12 HTKGKUISLUERQX-UHFFFAOYSA-N 0.000 description 1
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- 0 CC1C(N=*)=C(C[C@](O)OC*CO)C=CC1 Chemical compound CC1C(N=*)=C(C[C@](O)OC*CO)C=CC1 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 150000001350 alkyl halides Chemical class 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 230000000202 analgesic effect Effects 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000012043 crude product Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- NKDDWNXOKDWJAK-UHFFFAOYSA-N dimethoxymethane Chemical compound COCOC NKDDWNXOKDWJAK-UHFFFAOYSA-N 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000002329 infrared spectrum Methods 0.000 description 1
- 239000000543 intermediate Substances 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- PNDPGZBMCMUPRI-UHFFFAOYSA-N iodine Chemical compound II PNDPGZBMCMUPRI-UHFFFAOYSA-N 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- 239000011630 iodine Substances 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 235000010603 pastilles Nutrition 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000010189 synthetic method Methods 0.000 description 1
- 238000004809 thin layer chromatography Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D215/00—Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems
- C07D215/02—Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen atoms or carbon atoms directly attached to the ring nitrogen atom
- C07D215/16—Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen atoms or carbon atoms directly attached to the ring nitrogen atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D215/38—Nitrogen atoms
- C07D215/42—Nitrogen atoms attached in position 4
- C07D215/44—Nitrogen atoms attached in position 4 with aryl radicals attached to said nitrogen atoms
Definitions
- the present invention carried out at the Pierre FABRE Research Center, relates to a new derivative of anthranilic acid and its preparation process.
- the invention relates to a derivative of formula: ⁇ -glyceryl anthranilate and its salts, in particular its halohydrates, which are useful in particular as synthetic intermediates for preparing medicaments.
- this new derivative can be obtained by condensation of glycerol on isatoic anhydride according to the following reaction scheme:
- condensation catalyst in particular a base, which can be inorganic, for example an alkali or alkaline earth metal hydroxide, or organic, for example triethylamine. Soda is preferably used as the condensation catalyst.
- reaction temperature and pressure are not very critical parameters, nevertheless, taking into account in particular the gas evolution which occurs, it is advantageous to eliminate the gas formed by continuous pumping, to heat the reaction mixture only enough slowly and maintain for some time, for example 1 hour, the reaction mixture at a temperature between 60 and 90 ° C.
- the reaction is preferably carried out in the presence of a molar excess of glycerol which serves as solvent and improves the yield of the reaction, this molar excess can be comprised, for example, between 2/1 and 20/1 relative to isatoic anhydride.
- the process according to the invention makes it possible to obtain the ⁇ -glyceryl anthranilate in solution in glycerol which can be used as it is in other reaction stages.
- the raw product can be separated by one of the many processes known in the chemical industry.
- the crude product can also be purified by crystallization from the hydrochloride.
- A-glyceryl anthranilate is an intermediate product in the synthesis of derivatives of the 4- (2'-carboxyphenylamino) -7-chloroquinoline or glafenine type which is a known analgesic compound.
- glafenine is obtained as described in the patent filed on July 26, 1977 in the name of the Applicant and having for title "New process for the preparation of glafenine".
- This process for the preparation of glafenine has the advantage of using only products which are widely available commercially and inexpensive.
- isatoic anhydride which is experiencing industrial development as a synthesis intermediary in the dye industry can, thanks to new synthesis processes, be obtained at prices much lower than the prices of anthranilic acid which constitutes the basic product in known syntheses of glafenine.
- this synthetic method makes it possible to significantly increase the yields of glafenine compared to known methods, in particular by limiting the number of reaction steps.
- Example 1 The solution obtained in Example 1 is treated to remove the excess glycerol, the reaction residue is diluted in ethyl acetate and then hydrochlorized, either by bubbling gaseous hydrochloric acid, or by adding ethanol saturated with hydrochloric acid.
- the glyceryl anthranilate hydrochloride is crystallized after concentration of the solvents and addition of methylal.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Description
- La présente invention, réalisée au Centre de Recherche Pierre FABRE, concerne un nouveau dérivé de l'acide anthranilique et son procédé de préparation.
-
-
- La condensation précédente est, de préférence, mise en oeuvre en présence d'un catalyseur de condensation, en particulier une base, qui peut être minérale, par exemple un hydroxyde de métal alcalin ou alcalino-terreux, ou organique, par exemple la triéthylamine. On utilise, de préférence, comme catalyseur de condensation la soude.
- La température et la pression de réaction ne sont pas des paramètres très critiques, néanmoins, compte tenu notamment du dégagement gazeux qui se produit, il est intéressant d'éliminer le gaz formé par pompage en continu, de ne chauffer le mélange réactionnel qu'assez lentement et de maintenir quelque temps, par exemple 1 heure, le mélange réactionnel à une température comprise entre 60 et 90°C.
- La réaction est, de préférence, conduite en présence d'un excès molaire de glycérol qui sert de solvant et améliore le rendement de la réaction, cet excès molaire peut être compris, par exemple, entre 2/1 et 20/1 par rapport à l'anhydride isatoique.
- Dans ce procédé il n'est pas nécessaire d'utiliser un glycérol anhydre, car une faible teneur en eau ne modifie pas les rendements de la réaction.
- Le procédé selon l'invention permet d'obtenir l'anthranilate d'a-glycéryle en solution dans le glycérol qui peut être utilisé tel quel dans d'autres étapes réactionnelles.
- Mais, bien entendu, on peut séparer le produit brut par l'un des nombreux procédés connus dans l'industrie chimique. On peut également purifier le produit brut par cristallisation du chlorhydrate.
- L'anthranilate d'a-glycéryle est un produit intermédiaire dans la synthèse de dérivés de type 4-(2'-carboxyphénylamino)-7-chloroquinoléine ou glafénine qui est un composé antalgique connu.
- En effet, par réaction du composé de l'invention sur la 4,7-dichloroquinoléine en milieu chlorhydrique à chaud puis neutralisation, on obtient la glafénine comme cela est décrit dans le brevet déposé le 26 juillet 1977 au nom de la Demanderesse et ayant pour titre "Nouveau procédé de préparation de la glafénine".
- Ce procédé de préparation de la glafénine présente l'avantage de n'utiliser que des produits largement accessibles dans le commerce et peu coûteux.
- Ainsi, l'anhydride isatoique qui connaît un développement industriel en tant qu'intermédiaire de synthèse dans l'industrie des colorants peut, grâce à de nouveaux procédés de synthèse, être obtenu à des prix très inférieurs aux prix de l'acide anthranilique qui constitue le produit de base dans les synthèses connues de la glafénine.
- En outre, ce procédé de synthèse permet d'accroître notablement les rendements en glafénine par rapport aux procédés connus, notamment en limitant le nombre des étapes de réaction.
- A titre d'exemple non limitatif, on décrit, ci-après, la synthèse de composés selon l'invention.
- Dans un réacteur de 100 1 on introduit 29,3 kg de glycérol (321 moles), on ajoute 157 g de soude en pastilles (3,9 moles) puis 5,1 kg d'anhydride isatoique (31 moles).
- On chauffe lentement, le gaz carbonique qui se dégage est aspire par l'intermédiaire d'une pompe dont le débit est de 10 m3/heure ; le mélange réactionnel est maintenu environ 1 heure entre 60 et 90°C. A ce stade le rendement est quantitatif en anthranilate d'a-glycéryle en solution dans le glycérol ; ce dérivé peut être utilisé directement pour condenser le groupe amino avec des halogénures d'alcoyles mobiles par exemple.
- La solution obtenue à l'exemple 1 est traitée pour'éliminer le glycérol en excès, le résidu réactionnel est dilué dans l'acétate d'éthyle puis chlorhydra- té, soit par barbotage d'acide chlorhydrique gazeux, soit par addition d'éthanol saturé d'acide chlorhydrique.
- Le chlorhydrate de l'anthranilate de glycéryle est cristallisé après concentration des solvants et addition de méthylal.
-
- Formule brute : C10H14Cl N O4.
- Masse moléculaire : 247,6.
- Point de fusion : 140°C.
- Chromatographie en couche mince :
- - support : silice Merck F 254
- - solvant : acétate d'éthyle
- - révélation : lampe à UV ou vapeurs d'iode
- - Rf : 0,41.
- Spectrographie infra-rouge :
- Appareil Perkin-Elmer modèle 257 Pastille de KBr
- νC=O (ester) à 1695 cm-1
- νOH à 3400 cm-1 Bandes de salification 2500 à 2900 cm-1.
-
- Produit huileux, légèrement jaunâtre.
- Spectre infra-rouge effectué entre lames de NaCl :
- νOH et νNH entre 3300 et 3500 cm-1
- νCH (aromatiques) à 3040 - 3060 et 3080 cm-1
- νC=O centrée à 1700 cm-1
- νC-C aromatiques à 1590 et 1620 cm-1
Claims (8)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7722899 | 1977-07-26 | ||
| FR7722899A FR2398719A1 (fr) | 1977-07-26 | 1977-07-26 | Nouvel intermediaire de synthese : l'anthranilate de glyceryle et son procede de preparation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0000678A1 true EP0000678A1 (fr) | 1979-02-07 |
| EP0000678B1 EP0000678B1 (fr) | 1981-08-05 |
Family
ID=9193811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19780400059 Expired EP0000678B1 (fr) | 1977-07-26 | 1978-07-18 | Nouvel intermédiaire de synthèse: l'anthranilate de glycéryle et son procédé de préparation |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0000678B1 (fr) |
| DE (1) | DE2860897D1 (fr) |
| ES (1) | ES472071A1 (fr) |
| FR (1) | FR2398719A1 (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2843037B1 (fr) | 2002-08-01 | 2006-01-27 | Salomon Sa | Ensemble de retenue d'une chaussure sur une planche de glisse |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3123631A (en) * | 1964-03-03 | Process for preparing esters of | ||
| FR1421229A (fr) * | 1962-08-20 | 1965-12-17 | Roussel Uclaf | Nouveau dérivé de la quinoléine et procédé de préparation |
-
1977
- 1977-07-26 FR FR7722899A patent/FR2398719A1/fr active Granted
-
1978
- 1978-07-18 DE DE7878400059T patent/DE2860897D1/de not_active Expired
- 1978-07-18 EP EP19780400059 patent/EP0000678B1/fr not_active Expired
- 1978-07-26 ES ES472071A patent/ES472071A1/es not_active Expired
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3123631A (en) * | 1964-03-03 | Process for preparing esters of | ||
| FR1421229A (fr) * | 1962-08-20 | 1965-12-17 | Roussel Uclaf | Nouveau dérivé de la quinoléine et procédé de préparation |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0000678B1 (fr) | 1981-08-05 |
| FR2398719B1 (fr) | 1980-10-10 |
| DE2860897D1 (en) | 1981-11-05 |
| FR2398719A1 (fr) | 1979-02-23 |
| ES472071A1 (es) | 1979-03-16 |
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