CH598285A5 - Steroid 21-(4-acetamidomethylcyclohexane carboxylates) - Google Patents
Steroid 21-(4-acetamidomethylcyclohexane carboxylates)Info
- Publication number
- CH598285A5 CH598285A5 CH100176A CH100176A CH598285A5 CH 598285 A5 CH598285 A5 CH 598285A5 CH 100176 A CH100176 A CH 100176A CH 100176 A CH100176 A CH 100176A CH 598285 A5 CH598285 A5 CH 598285A5
- Authority
- CH
- Switzerland
- Prior art keywords
- acid
- formula
- prednisolone
- reactive functional
- steroid
- Prior art date
Links
- 150000003431 steroids Chemical class 0.000 title claims abstract description 11
- 150000003124 pregnadienes Chemical class 0.000 claims abstract description 3
- 229960005205 prednisolone Drugs 0.000 claims description 17
- OIGNJSKKLXVSLS-VWUMJDOOSA-N prednisolone Chemical compound O=C1C=C[C@]2(C)[C@H]3[C@@H](O)C[C@](C)([C@@](CC4)(O)C(=O)CO)[C@@H]4[C@@H]3CCC2=C1 OIGNJSKKLXVSLS-VWUMJDOOSA-N 0.000 claims description 14
- 239000002253 acid Substances 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 10
- 238000002360 preparation method Methods 0.000 claims description 7
- 229960005294 triamcinolone Drugs 0.000 claims description 7
- GFNANZIMVAIWHM-OBYCQNJPSA-N triamcinolone Chemical compound O=C1C=C[C@]2(C)[C@@]3(F)[C@@H](O)C[C@](C)([C@@]([C@H](O)C4)(O)C(=O)CO)[C@@H]4[C@@H]3CCC2=C1 GFNANZIMVAIWHM-OBYCQNJPSA-N 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 229910001868 water Inorganic materials 0.000 claims description 3
- VZRAKVPDZIQRGT-WZBAXQLOSA-N (8r,9s,10s,13r,14s,17r)-17-ethenyl-10,13-dimethyl-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1h-cyclopenta[a]phenanthrene Chemical compound C1CCC[C@]2(C)[C@H]3CC[C@](C)([C@H](CC4)C=C)[C@@H]4[C@@H]3CCC21 VZRAKVPDZIQRGT-WZBAXQLOSA-N 0.000 claims description 2
- JWMFYGXQPXQEEM-NUNROCCHSA-N 5β-pregnane Chemical compound C([C@H]1CC2)CCC[C@]1(C)[C@@H]1[C@@H]2[C@@H]2CC[C@H](CC)[C@@]2(C)CC1 JWMFYGXQPXQEEM-NUNROCCHSA-N 0.000 claims description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 2
- 229960002537 betamethasone Drugs 0.000 claims description 2
- UREBDLICKHMUKA-DVTGEIKXSA-N betamethasone Chemical compound C1CC2=CC(=O)C=C[C@]2(C)[C@]2(F)[C@@H]1[C@@H]1C[C@H](C)[C@@](C(=O)CO)(O)[C@@]1(C)C[C@@H]2O UREBDLICKHMUKA-DVTGEIKXSA-N 0.000 claims description 2
- 230000008030 elimination Effects 0.000 claims description 2
- 238000003379 elimination reaction Methods 0.000 claims description 2
- 125000004185 ester group Chemical group 0.000 claims description 2
- 229960003973 fluocortolone Drugs 0.000 claims description 2
- GAKMQHDJQHZUTJ-ULHLPKEOSA-N fluocortolone Chemical compound C1([C@@H](F)C2)=CC(=O)C=C[C@]1(C)[C@@H]1[C@@H]2[C@@H]2C[C@@H](C)[C@H](C(=O)CO)[C@@]2(C)C[C@@H]1O GAKMQHDJQHZUTJ-ULHLPKEOSA-N 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- 150000008064 anhydrides Chemical class 0.000 claims 2
- QOSSAOTZNIDXMA-UHFFFAOYSA-N Dicylcohexylcarbodiimide Chemical compound C1CCCCC1N=C=NC1CCCCC1 QOSSAOTZNIDXMA-UHFFFAOYSA-N 0.000 claims 1
- 229910052783 alkali metal Inorganic materials 0.000 claims 1
- 150000001340 alkali metals Chemical class 0.000 claims 1
- 125000005907 alkyl ester group Chemical group 0.000 claims 1
- 150000001408 amides Chemical class 0.000 claims 1
- 150000001718 carbodiimides Chemical class 0.000 claims 1
- PFKFTWBEEFSNDU-UHFFFAOYSA-N carbonyldiimidazole Chemical compound C1=CN=CN1C(=O)N1C=CN=C1 PFKFTWBEEFSNDU-UHFFFAOYSA-N 0.000 claims 1
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 239000012024 dehydrating agents Substances 0.000 claims 1
- 125000004494 ethyl ester group Chemical group 0.000 claims 1
- 150000004820 halides Chemical class 0.000 claims 1
- 150000004678 hydrides Chemical class 0.000 claims 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims 1
- -1 pregnanes pregnenes Chemical class 0.000 abstract description 5
- 230000003110 anti-inflammatory effect Effects 0.000 abstract 1
- 239000000047 product Substances 0.000 description 14
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 8
- 230000000694 effects Effects 0.000 description 8
- 239000000243 solution Substances 0.000 description 7
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 6
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- 230000000144 pharmacologic effect Effects 0.000 description 4
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 4
- QZAYGJVTTNCVMB-UHFFFAOYSA-N serotonin Chemical compound C1=C(O)C=C2C(CCN)=CNC2=C1 QZAYGJVTTNCVMB-UHFFFAOYSA-N 0.000 description 4
- NGNBDVOYPDDBFK-UHFFFAOYSA-N 2-[2,4-di(pentan-2-yl)phenoxy]acetyl chloride Chemical compound CCCC(C)C1=CC=C(OCC(Cl)=O)C(C(C)CCC)=C1 NGNBDVOYPDDBFK-UHFFFAOYSA-N 0.000 description 3
- WFDIJRYMOXRFFG-UHFFFAOYSA-N Acetic anhydride Chemical compound CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 206010030113 Oedema Diseases 0.000 description 3
- 241000700159 Rattus Species 0.000 description 3
- 239000000443 aerosol Substances 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- UAFHRUBCOQPFFM-UHFFFAOYSA-N 1-(aminomethyl)cyclohexane-1-carboxylic acid Chemical compound NCC1(C(O)=O)CCCCC1 UAFHRUBCOQPFFM-UHFFFAOYSA-N 0.000 description 2
- FUFLCEKSBBHCMO-UHFFFAOYSA-N 11-dehydrocorticosterone Natural products O=C1CCC2(C)C3C(=O)CC(C)(C(CC4)C(=O)CO)C4C3CCC2=C1 FUFLCEKSBBHCMO-UHFFFAOYSA-N 0.000 description 2
- OMFXVFTZEKFJBZ-UHFFFAOYSA-N Corticosterone Natural products O=C1CCC2(C)C3C(O)CC(C)(C(CC4)C(=O)CO)C4C3CCC2=C1 OMFXVFTZEKFJBZ-UHFFFAOYSA-N 0.000 description 2
- MFYSYFVPBJMHGN-ZPOLXVRWSA-N Cortisone Chemical compound O=C1CC[C@]2(C)[C@H]3C(=O)C[C@](C)([C@@](CC4)(O)C(=O)CO)[C@@H]4[C@@H]3CCC2=C1 MFYSYFVPBJMHGN-ZPOLXVRWSA-N 0.000 description 2
- MFYSYFVPBJMHGN-UHFFFAOYSA-N Cortisone Natural products O=C1CCC2(C)C3C(=O)CC(C)(C(CC4)(O)C(=O)CO)C4C3CCC2=C1 MFYSYFVPBJMHGN-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 206010018691 Granuloma Diseases 0.000 description 2
- NTYJJOPFIAHURM-UHFFFAOYSA-N Histamine Chemical compound NCCC1=CN=CN1 NTYJJOPFIAHURM-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- 230000001741 anti-phlogistic effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229940113118 carrageenan Drugs 0.000 description 2
- 235000010418 carrageenan Nutrition 0.000 description 2
- 229920001525 carrageenan Polymers 0.000 description 2
- 239000000679 carrageenan Substances 0.000 description 2
- 239000003246 corticosteroid Substances 0.000 description 2
- OMFXVFTZEKFJBZ-HJTSIMOOSA-N corticosterone Chemical compound O=C1CC[C@]2(C)[C@H]3[C@@H](O)C[C@](C)([C@H](CC4)C(=O)CO)[C@@H]4[C@@H]3CCC2=C1 OMFXVFTZEKFJBZ-HJTSIMOOSA-N 0.000 description 2
- 229960004544 cortisone Drugs 0.000 description 2
- 150000001887 cortisones Chemical class 0.000 description 2
- 230000002500 effect on skin Effects 0.000 description 2
- 238000000921 elemental analysis Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000002329 infrared spectrum Methods 0.000 description 2
- 230000005764 inhibitory process Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000006210 lotion Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000000655 nuclear magnetic resonance spectrum Methods 0.000 description 2
- 239000002674 ointment Substances 0.000 description 2
- 229940076279 serotonin Drugs 0.000 description 2
- 239000003826 tablet Substances 0.000 description 2
- 230000001225 therapeutic effect Effects 0.000 description 2
- FYSNRJHAOHDILO-UHFFFAOYSA-N thionyl chloride Chemical compound ClS(Cl)=O FYSNRJHAOHDILO-UHFFFAOYSA-N 0.000 description 2
- 230000000699 topical effect Effects 0.000 description 2
- 230000002110 toxicologic effect Effects 0.000 description 2
- 231100000027 toxicology Toxicity 0.000 description 2
- UHVMMEOXYDMDKI-JKYCWFKZSA-L zinc;1-(5-cyanopyridin-2-yl)-3-[(1s,2s)-2-(6-fluoro-2-hydroxy-3-propanoylphenyl)cyclopropyl]urea;diacetate Chemical compound [Zn+2].CC([O-])=O.CC([O-])=O.CCC(=O)C1=CC=C(F)C([C@H]2[C@H](C2)NC(=O)NC=2N=CC(=CC=2)C#N)=C1O UHVMMEOXYDMDKI-JKYCWFKZSA-L 0.000 description 2
- UMFZYZDSLPTDRA-UHFFFAOYSA-N 1-(2-aminoethyl)cyclohexane-1-carboxylic acid Chemical compound NCCC1(C(O)=O)CCCCC1 UMFZYZDSLPTDRA-UHFFFAOYSA-N 0.000 description 1
- 206010002199 Anaphylactic shock Diseases 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 1
- 208000009079 Bronchial Spasm Diseases 0.000 description 1
- 208000014181 Bronchial disease Diseases 0.000 description 1
- 206010006482 Bronchospasm Diseases 0.000 description 1
- 241000700199 Cavia porcellus Species 0.000 description 1
- 241000282994 Cervidae Species 0.000 description 1
- 229920002307 Dextran Polymers 0.000 description 1
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 206010058679 Skin oedema Diseases 0.000 description 1
- 229930182558 Sterol Natural products 0.000 description 1
- 208000007107 Stomach Ulcer Diseases 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 230000001919 adrenal effect Effects 0.000 description 1
- 208000003455 anaphylaxis Diseases 0.000 description 1
- 230000002804 anti-anaphylactic effect Effects 0.000 description 1
- 239000002260 anti-inflammatory agent Substances 0.000 description 1
- 230000003913 calcium metabolism Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000006071 cream Substances 0.000 description 1
- RVOJTCZRIKWHDX-UHFFFAOYSA-N cyclohexanecarbonyl chloride Chemical compound ClC(=O)C1CCCCC1 RVOJTCZRIKWHDX-UHFFFAOYSA-N 0.000 description 1
- 229960002086 dextran Drugs 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- 229960001340 histamine Drugs 0.000 description 1
- FZWBNHMXJMCXLU-BLAUPYHCSA-N isomaltotriose Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@@H]1OC[C@@H]1[C@@H](O)[C@H](O)[C@@H](O)[C@@H](OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C=O)O1 FZWBNHMXJMCXLU-BLAUPYHCSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000000546 pharmaceutical excipient Substances 0.000 description 1
- 239000006187 pill Substances 0.000 description 1
- 230000001817 pituitary effect Effects 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000022558 protein metabolic process Effects 0.000 description 1
- 239000012047 saturated solution Substances 0.000 description 1
- 210000002966 serum Anatomy 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000012265 solid product Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 150000003432 sterols Chemical class 0.000 description 1
- 235000003702 sterols Nutrition 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000829 suppository Substances 0.000 description 1
- 239000006188 syrup Substances 0.000 description 1
- 235000020357 syrup Nutrition 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07J—STEROIDS
- C07J41/00—Normal steroids containing one or more nitrogen atoms not belonging to a hetero ring
- C07J41/0033—Normal steroids containing one or more nitrogen atoms not belonging to a hetero ring not covered by C07J41/0005
- C07J41/005—Normal steroids containing one or more nitrogen atoms not belonging to a hetero ring not covered by C07J41/0005 the 17-beta position being substituted by an uninterrupted chain of only two carbon atoms, e.g. pregnane derivatives
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Steroid Compounds (AREA)
Abstract
Steroid 21-(4-acetamidomethylcyclohexane carboxylates) of pregnanes pregnenes and pregnadienes with antiinflammatory activity
Description
La présente invention est relative à un procédé de préparation de nouveaux dérivés de la série de la cortisone ayant notamment une action cortisonique du type des stéroldes anti-infiammatoires.
Les nouveaux composés préparés suivant l'invention répondent à la formule:
EMI1.1
dans laquelle St représente un reste de stéroide de la série du prégnane, du prégnène ou du prégnadiène, le groupe ester étant fixé en position 21 du reste stéroïde.
Parmi les restes de stéroides, on citera notamment les restes de prednisolone, de triamcinolone, de bétaméthasone, de chlocortolone ou de fluocortolone.
Le procédé de préparation des composés de formule (I) suivant rinvention est caractérisé en ce qu'on fait réagir le stéroide avec du chlorure de l'acide 4-N.acétylaminométhylcyclohexanecarboxy- lique dans un solvant organique approprié (notamment le chloroforme, le benzène, etc.) en présence d'un accepteur de l'acide chlorhydrique (notamment la pyridine).
Les exemples suivants illustrent l'invention.
Exemple 1:
Préparation du 21 21-(4-N-acétylaminométhylcyclohexane-
carboxylate) de prednisolone
EMI1.2
a) Préparation de l'acide 4-N-acétylaminométhylcyclohexanecarboxylique:
EMI1.3
20 g d'acide aminoéthylcyclohexanecarboxylique dissous dans 100 cm3 de pyridine anhydre sont refroidis à 0 C-5 C. On ajoute à la solution agitée, sans dépasser 10 C, 15 cm3 d'anhydride acétique. Après avoir terminé addition, on laisse reposer pendant 12 h, puis on évapore le solvant sous vide et on reprend le résidu avec une solution de bicarbonate de sodium. On filtre le résidu qui est cristallisé dans l'eau.
Point de fusion: 130 C.
b) Préparation du chlorure de l'acide 4-N-acétylaminométhyl cyclohexanecarboxylique:
EMI1.4
2 g de l'acide (II) sont mis en suspension dans 10 cm3 de benzène anhydre et traités, sous agitation, avec 2 g de chlorure de thionyle.
Après 60 mn, on traite avec de l'éther de pétrole pour compléter la précipitation et on filtre rapidement. On obtient 2 g de chlorure de Acide.
c) Préparation de l'ester de prednisolone: 1 g de prednisolone est dissous dans 10 cm3 de pyridine anhydre.
On ajoute à cette solution 10 cm3 d'une solution obtenue en dissolvant 0,8 g du chlorure de l'acide préparé en B ci-dessus dans du chloroforme anhydre exempt d'éthanol. On laisse reposer pendant 48 h, puis on évapore le solvant sous vide. On obtient une huile qui devient solide par traitement avec une solution saturée de bicarbonate. L'ester cristallisé dans Méthanol est le composé nommé dans le titre.
P.F.=246 C; P.M.=541;
Formule brute pour C31H430,N: c69,51 H6,96 N 2,61%.
L'identité du produit est prouvée par l'analyse élémentaire, les spectres infrarouge et RMN, le test qualitatif de reconnaissance de la prednisolone et par comparaison spectrophotométrique entre la prednisolone, Acide (4-N-acétyl)aminométhylcyclohexanecarboxylique et le produit de la réaction.
Exemple 2:
Préparation du 21 -(4-N-acétylaminométfrvlcyclohexane-
carboxylate de triamcinolone:
EMI2.1
I g de triamcinolone est dissous dans 10 cm3 de pyridine anhydre.
On verse cette solution dans 10 cm3 d'une solution obtenue en dissolvant 0,8 g du chlorure d'acide (III) de l'exemple 1 dans du chloroforme anhydre. On laisse reposer pendant 48 h, puis on évapore le solvant sous vide. On obtient un produit solide qui cristallise dans l'éthanol.
P.F. = 203 C; rendement = 80%; P.M. = 575,5; formule brute: C31H42FNOs. L'identité du produit est prouvée par l'analyse élémentaire, les spectres infrarouge et RMN, le test qualitatif de reconnaissance de la triamcinolone et par comparaison spectrophotométrique entre la triamcinolone, I'acide (4-N acétyl)aminométhylcyclohexanecarboxylique et le produit de la réaction.
Les nouveaux produits, tout en conservant l'activité typique des substances cortisoniques, présentent des propriétés pharmacologiques et thérapeutiques plus avantageuses. Ils présentent notamment une action plus intense et plus prolongée, que l'on constate également par application topique, dermique ou par aérosol.
A titre d'exemple, on donnera ci-après les résultats d'une étude toxicologique et pharmacologique, effectuée sur le 21-(4-N-acétylaminométhylcyclohexanecarboxylate) de prednisolone, parfaitement représentatif de l'ensemble de composés de formule (I).
Essais toxicologiques.
Tout comme pour les autres dérivés de la cortisone, le nouveau produit ne présente aucune toxicité significative, qu'il soit administré par voie orale, parentérale, rectale ou topique. Il présente des avantages par rapport à la cortisone en ce qu'il a des effets moindres sur le métabolisme du calcium et sur le métabolisme protéique. Si l'on considère les molécules de départ, on observe qu'il n'y a pas de modifications dans l'élimination du potassium, du sodium ou de l'eau.
Comparativement au stéroide de base, le nouveau produit influence avec moins d'intensité la formation expérimentale d'ulcères gastriques (soit selon la méthode de Schay, soit par constriction, soit par le glucose).
Essais pharmacologiques a) Essais d'activité cortisonique:
Ce qui caractérise notamment le nouveau produit par rapport au stéroide de base, c'est son activité corticoide plus prolongée et son action locale, soit dermique, soit bronchique, plus puissante.
Les essais effectués (évaluation de la diminution de la corticostérone hématique provoquée par l'inhibition de l'axe hypophysesurrénale, évaluation qui peut être considérée parallèlement à l'activité), confirment l'action prolongée du produit.
En effet, après avoir administré 4 mg/kg de prednisolone, le taux de corticostérone plasmatique retourne après 18 h aux valeurs initiales (30 mcg/100 cm3), tandis qu'après avoir administré des quantités équimolaires de 21-(4-N-acétylaminométhylcyclohexanecarboxylate) de prednisolone, I'activité corticoide, après un laps de temps identique, se révèle encore très élevée. (Les taux sont d'environ 18 mcg/100 cm3 de plasma.) b) Activité antiphlogistique:
La comparaison faite entre les doses équimolaires de prednisolone et du nouveau produit montre, selon les divers tests effectués, une action antiphlogistique plus intense de ce dernier.
Les tests appliqués ont été les tests de l'oedéme local à la carragénine, au dextrane et à la sérotonine dans la patte de rat.
Dans le cas de l'oedème provoqué par la carragénine, I'administration de la prednisolone à une dose de 4 mg/kg ne provoque presque aucun effet, tandis que radministration de la même dose du nouveau produit empêche complètement sa formation.
On a obtenu ce même résultat plus intéressant en expérimentant le test du granulome de cerf. Le granulome est réduit de moitié par l'administration de 4 mg/kg du nouveau produit et son effet est presque le double de celui de la prednisolone à la même dose.
c) Essais d'activité antianaphylactique:
Grâce à ces essais, on a pu observer que le bronchospasme et le choc anaphylactique, provoqués par le sérum hétérogène chez le cobaye sensibilisé, sont bloqués plus aisément par le nouveau produit que par la prednisolone. On a pu également démontrer un rapport d'activité plus favorable par le test de l'oedéme cutané provoqué chez le rat par l'injection intradermique d'immunosérum.
(On peut obtenir rinhibition de Oedème en administrant 2 mg/kg du nouveau produit, contre 5 mg/kg de prednisolone.) En ce qui concerne la diffusion sur la peau du rat de colorants vitaux (Evans Blue), provoquée par l'injection de sérotonine ou d'histamine, Fapplication topique du nouveau produit l'empêche plus efficacement et pendant plus longtemps qu'une application semblable de prednisolone.
Les essais effectués indiquent que les nouveaux composés de Invention peuvent être utilisés plus avantageusement que le stérolde de départ en thérapeutique humaine pour toutes les affections sensibles à Faction de ces stéroldes.
Les composés de formule I peuvent être administrés par voie orale, parentérale, rectale, topique ou par aérosol, sous forme de comprimés, pilules, sirop, ampoules, pulvérisation, pommades, crèmes ou lotions, le principe actif étant associé à des véhicules ou excipients appropriés.
On donnera ci-dessous, à titre non limitatif, quelques exemples de formulation pharmacologiques:
- comprimés contenant de 2 à 10 mg de principe actif;
- ampoules injectables, contenant de 10 à 30 mg de principe actif;
- suppositoires, contenant de 5 à 20 mg de principe actif;
- pommades, lotions, solutions pour aérosol, etc., contenant de 0,05 à 2% de principe actif.
La dose administrable par 24 h varie selon les nécessités thérapeutiques.
The present invention relates to a process for the preparation of new derivatives of the cortisone series having in particular a cortisonic action of the type of anti-inflammatory steroid.
The new compounds prepared according to the invention correspond to the formula:
EMI1.1
in which St represents a steroid residue from the pregnane, pregnene or pregnadiene series, the ester group being attached at position 21 of the steroid residue.
Among the steroid residues, there will be mentioned in particular the residues of prednisolone, triamcinolone, betamethasone, chlocortolone or fluocortolone.
The process for preparing the compounds of formula (I) according to the invention is characterized in that the steroid is reacted with 4-N acetylaminomethylcyclohexanecarboxylic acid chloride in a suitable organic solvent (in particular chloroform, benzene. , etc.) in the presence of a hydrochloric acid acceptor (in particular pyridine).
The following examples illustrate the invention.
Example 1:
Preparation of 21 21- (4-N-acetylaminomethylcyclohexane-
prednisolone carboxylate)
EMI1.2
a) Preparation of 4-N-acetylaminomethylcyclohexanecarboxylic acid:
EMI1.3
20 g of aminoethylcyclohexanecarboxylic acid dissolved in 100 cm3 of anhydrous pyridine are cooled to 0 C-5 C. To the stirred solution, without exceeding 10 C, 15 cm3 of acetic anhydride are added. After completing the addition, the mixture is left to stand for 12 h, then the solvent is evaporated off in vacuo and the residue is taken up with a solution of sodium bicarbonate. The residue is filtered which crystallizes from water.
Melting point: 130 C.
b) Preparation of 4-N-acetylaminomethyl cyclohexanecarboxylic acid chloride:
EMI1.4
2 g of the acid (II) are suspended in 10 cm3 of anhydrous benzene and treated, with stirring, with 2 g of thionyl chloride.
After 60 min, it is treated with petroleum ether to complete the precipitation and it is filtered rapidly. 2 g of acid chloride are obtained.
c) Preparation of the prednisolone ester: 1 g of prednisolone is dissolved in 10 cm3 of anhydrous pyridine.
To this solution is added 10 cm3 of a solution obtained by dissolving 0.8 g of the chloride of the acid prepared in B above in anhydrous chloroform free from ethanol. Allowed to stand for 48 h, then the solvent is evaporated off in vacuo. An oil is obtained which becomes solid by treatment with a saturated solution of bicarbonate. The ester crystallized in methanol is the compound named in the title.
M.p. = 246 C; Mp = 541;
Crude formula for C31H430, N: c69.51 H6.96 N 2.61%.
The identity of the product is proven by elemental analysis, infrared and NMR spectra, the qualitative recognition test for prednisolone and by spectrophotometric comparison between prednisolone, (4-N-acetyl) aminomethylcyclohexanecarboxylic acid and the reaction product. .
Example 2:
Preparation of 21 - (4-N-acetylaminométfrvlcyclohexane-
triamcinolone carboxylate:
EMI2.1
I g of triamcinolone is dissolved in 10 cm3 of anhydrous pyridine.
This solution is poured into 10 cm3 of a solution obtained by dissolving 0.8 g of the acid chloride (III) of Example 1 in anhydrous chloroform. Allowed to stand for 48 h, then the solvent is evaporated off in vacuo. A solid product is obtained which crystallizes from ethanol.
Mp = 203 C; yield = 80%; Mp = 575.5; empirical formula: C31H42FNOs. The identity of the product is proved by elemental analysis, infrared and NMR spectra, the qualitative test for recognition of triamcinolone and by spectrophotometric comparison between triamcinolone, (4-N acetyl) aminomethylcyclohexanecarboxylic acid and the product of reaction.
The new products, while retaining the activity typical of cortisone substances, exhibit more advantageous pharmacological and therapeutic properties. They present in particular a more intense and more prolonged action, which is also observed by topical, dermal or aerosol application.
By way of example, the results of a toxicological and pharmacological study, carried out on prednisolone 21- (4-N-acetylaminomethylcyclohexanecarboxylate), which is perfectly representative of the set of compounds of formula (I), will be given below.
Toxicological tests.
As with the other cortisone derivatives, the new product exhibits no significant toxicity, whether administered orally, parenterally, rectally or topically. It has advantages over cortisone in that it has less effects on calcium metabolism and protein metabolism. If we consider the starting molecules, we observe that there are no modifications in the elimination of potassium, sodium or water.
Compared to the basic steroid, the new product has less influence on the experimental formation of gastric ulcers (either according to Schay's method, or by constriction, or by glucose).
Pharmacological tests a) Cortisonic activity tests:
What characterizes the new product in particular with respect to the basic steroid is its more prolonged corticosteroid activity and its local action, either dermal or bronchial, more powerful.
The tests carried out (evaluation of the decrease in haematic corticosterone caused by inhibition of the pituitary adrenal axis, evaluation which can be considered in parallel with the activity), confirm the prolonged action of the product.
Indeed, after having administered 4 mg / kg of prednisolone, the level of plasma corticosterone returns after 18 h to the initial values (30 mcg / 100 cm3), while after having administered equimolar amounts of 21- (4-N- prednisolone acetylaminomethylcyclohexanecarboxylate), the corticosteroid activity, after an identical period of time, is still very high. (The levels are approximately 18 mcg / 100 cm3 of plasma.) B) Antiphlogistic activity:
The comparison made between the equimolar doses of prednisolone and the new product shows, according to the various tests carried out, a more intense antiphlogistic action of the latter.
The tests applied were the tests for local edema with carrageenan, dextran and serotonin in the rat paw.
In the case of edema caused by carrageenan, the administration of prednisolone at a dose of 4 mg / kg causes almost no effect, while the administration of the same dose of the new product completely prevents its formation.
This same more interesting result was obtained by experimenting with the deer granuloma test. The granuloma is halved by the administration of 4 mg / kg of the new product, and its effect is almost twice that of prednisolone at the same dose.
c) Tests for antianaphylactic activity:
Thanks to these tests, it has been observed that the bronchospasm and the anaphylactic shock, caused by the heterogeneous serum in the sensitized guinea pig, are blocked more easily by the new product than by prednisolone. A more favorable activity ratio could also be demonstrated by the skin edema test caused in rats by intradermal injection of immunoserum.
(The inhibition of edema can be obtained by administering 2 mg / kg of the new product, against 5 mg / kg of prednisolone.) Regarding the diffusion on the skin of the rat of vital dyes (Evans Blue), caused by the injection of serotonin or histamine, topical application of the new product prevents it more effectively and for longer than a similar application of prednisolone.
The tests carried out indicate that the new compounds of the invention can be used more advantageously than the starting steroid in human therapy for all the affections sensitive to the action of these sterols.
The compounds of formula I can be administered orally, parenterally, rectally, topically or by aerosol, in the form of tablets, pills, syrup, ampoules, spray, ointments, creams or lotions, the active principle being combined with vehicles or excipients appropriate.
Some examples of pharmacological formulation will be given below, without limitation:
- tablets containing from 2 to 10 mg of active principle;
- injectable ampoules, containing 10 to 30 mg of active principle;
- suppositories, containing 5 to 20 mg of active principle;
- ointments, lotions, aerosol solutions, etc., containing 0.05 to 2% of active ingredient.
The dose that can be administered per 24 h varies according to therapeutic needs.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU10509/76A AU494153B2 (en) | 1976-01-22 | 1976-01-22 | 21-(4-n-acetyl-aminoethyl cyclohexane carboxylic acid cortisone derivatives |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH598285A5 true CH598285A5 (en) | 1978-04-28 |
Family
ID=3701464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH100176A CH598285A5 (en) | 1976-01-22 | 1976-01-27 | Steroid 21-(4-acetamidomethylcyclohexane carboxylates) |
Country Status (2)
| Country | Link |
|---|---|
| AU (1) | AU494153B2 (en) |
| CH (1) | CH598285A5 (en) |
-
1976
- 1976-01-22 AU AU10509/76A patent/AU494153B2/en not_active Expired
- 1976-01-27 CH CH100176A patent/CH598285A5/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| AU1050976A (en) | 1977-07-28 |
| AU494153B2 (en) | 1977-07-28 |
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