BE582546A - - Google Patents
Info
- Publication number
- BE582546A BE582546A BE582546DA BE582546A BE 582546 A BE582546 A BE 582546A BE 582546D A BE582546D A BE 582546DA BE 582546 A BE582546 A BE 582546A
- Authority
- BE
- Belgium
- Prior art keywords
- benzyl
- dimethoxy
- ethylenediamine
- obtaining
- reacted
- Prior art date
Links
- -1 dimethoxybenzyl Chemical group 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- DIVNUTGTTIRPQA-UHFFFAOYSA-N (3,4-dimethoxyphenyl)methanamine Chemical compound COC1=CC=C(CN)C=C1OC DIVNUTGTTIRPQA-UHFFFAOYSA-N 0.000 claims description 2
- 125000002774 3,4-dimethoxybenzyl group Chemical group [H]C1=C([H])C(=C([H])C(OC([H])([H])[H])=C1OC([H])([H])[H])C([H])([H])* 0.000 claims description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 2
- 150000004820 halides Chemical class 0.000 claims description 2
- YNAVUWVOSKDBBP-UHFFFAOYSA-N morpholine Chemical compound C1COCCN1 YNAVUWVOSKDBBP-UHFFFAOYSA-N 0.000 claims description 2
- 229940113083 morpholine Drugs 0.000 claims description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 8
- 235000019441 ethanol Nutrition 0.000 description 8
- 239000000047 product Substances 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N HCl Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- CDBYLPFSWZWCQE-UHFFFAOYSA-L sodium carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 3
- 239000011780 sodium chloride Substances 0.000 description 3
- KBEZTIDYHIMNSJ-UHFFFAOYSA-N COC1(OC)CNCCN1CC1=CC=CC=C1 Chemical compound COC1(OC)CNCCN1CC1=CC=CC=C1 KBEZTIDYHIMNSJ-UHFFFAOYSA-N 0.000 description 2
- 125000002252 acyl group Chemical group 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000000706 filtrate Substances 0.000 description 2
- 238000001990 intravenous administration Methods 0.000 description 2
- GLUUGHFHXGJENI-UHFFFAOYSA-N piperazine Chemical compound C1CNCCN1 GLUUGHFHXGJENI-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 206010003230 Arteritis Diseases 0.000 description 1
- 210000003403 Autonomic Nervous System Anatomy 0.000 description 1
- 241000282472 Canis lupus familiaris Species 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 210000000936 Intestines Anatomy 0.000 description 1
- 239000002220 antihypertensive agent Substances 0.000 description 1
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000003776 cleavage reaction Methods 0.000 description 1
- 230000000875 corresponding Effects 0.000 description 1
- 230000005712 crystallization Effects 0.000 description 1
- 230000000994 depressed Effects 0.000 description 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 125000002485 formyl group Chemical group [H]C(*)=O 0.000 description 1
- CVVIJWRCGSYCMB-UHFFFAOYSA-N hydron;piperazine;dichloride Chemical compound Cl.Cl.C1CNCCN1 CVVIJWRCGSYCMB-UHFFFAOYSA-N 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 239000012454 non-polar solvent Substances 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 210000000056 organs Anatomy 0.000 description 1
- 230000002093 peripheral Effects 0.000 description 1
- 239000000810 peripheral vasodilating agent Substances 0.000 description 1
- 230000000144 pharmacologic effect Effects 0.000 description 1
- 150000004885 piperazines Chemical class 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000001187 sodium carbonate Substances 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000002792 vascular Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D295/00—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms
- C07D295/04—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms with substituted hydrocarbon radicals attached to ring nitrogen atoms
- C07D295/08—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms with substituted hydrocarbon radicals attached to ring nitrogen atoms substituted by singly bound oxygen or sulfur atoms
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Description
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procédés pour sa préparation
La présente invention a pour objet, à titre de pro- duits industriels nouveaux, un nouveau dérivé substitué de la piperazine, à savoir la N- 3', 4'- diméthoxy- benzyl- pipérazine ou 3', 4'- diméthoxy- benzyl- di-éthylène- diamine répondant à la formule
EMI1.1
ainsi que ses sels et dérivés.
L'invention a également pour objet des procédés pour l'obtention dudit dérivé.
Ce dernier présente des propriétés pharmacologiques très intéressantes, notamment comme hypotenseur périphérique;
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il peut être utilisé à l'état pur ou sous forme de ses sels d'acides minéraux ou organiques, ou encore sous forme d'un dérivé acylé en position 4.
La diméthoxy- benzyl- pipérazine est un vasodilatateur périphérique qui agit sur la fibre lisse vasculaire sans aucune action sur le système nerveux autonome. Elle peut être utilisée pour le traitement de l'artérite et de la co ro narite.
Elle se caractérise
1) par sa très faible toxicité (132 mg/kg par les méthodes intraveineuses chez la souris);
2) par sa grande activité (0,100 mg/kg par les méthodes intraveineuses chez le chien);
3) par le fait qu'elle ne détermine aucune dépression car- diaque, mais au contraire, stimule le coeur.
La diméthoxy- benzyl- pipérazine a, en outre, la pro- priété d'être un dépresseur général des fibres lisses, en par- ticulier de l'intestin, sur l'animal entier, mais non sur or- ganes isolés.
Ce nouveau produit de formule brute CL3H2ON2C2a pour masse moléculaire 236. Il est une base soluble dans l'eau, l'al- cool et divers solvants organiques. Son dichlorhydrate est soluble dans l'eau et dans l'alcool chaud; il est insoluble dans les sol- vants non polaires. Il se présente sous forme d'une poudre cris- talline blanche qui fond à 222-226 .
Le produit peut être préparé par les méthodes suivantes: 1 - Par la réaction de la di-éthylène dianine sur un halogénure de 3,4 diméthoxy-benzyle.
2 - Par la réaction d'un dérivé mono-N substitué de la di-éthy- lène diamine sur un halogénure de 3,4. diméthoxy-benzyle, suivie d'une réaction permettant la coupure du radical N substituant initial.
<Desc/Clms Page number 3>
5 - Par la réaction de la 3,4 diméthoxy- benzyl aminé sur la morpholine ou sos dérivés.
Par la réaction de la 3,4, diméthoxy- benzyl aminé sur les ssss '. halogène- éthyl- aminés.
5 - Par la réaction de la diméthoxy- benzy,-(ssss'- di- halogeno- éthyl- amine sur l'ammoniaque.
A titre d'exemples non limitatifs, les modes de prépara- tion peuvent être les suivants: Exemple 1
On fait agir, molécule à molécule, du chlorométhyl véra- trol sur la di-éthylène diamine(pipérazine)anhydre, an présence de carbonate de sodium anhydre en suspension dans l'alcool éthy- lique, et avec une violente agitation pendant' trois heures. On prend soin d'éviter toute élévation trop brusque de la tempéra- tv.re qui est limitée par le point d'ébullition do l'alcool éthy- lique.
Le produit obtenu est ensuite filtré et le filtrat est saturé d'acide chlorhydrique, après quoi on laisse au repos pen- dant environ 15 heures à la glacière.
On sépare par cristallisations et extractions fraction- nées les dérivés suivants: -Dichlorhydrate de di-éthylène diamine.
-Dichlorhydrate de monodiméthoxy benzyl di-éthylène diamine.
-Dichlorhydrate de bi-diméthoxy benzyl 14 di-éthylène diamine.
Exemple II
On fait agir, molécule à molécule, de la mono-formyl di- éthylène diamine sur le chlorométhyl vératrol, en présence de 1,5 molécules de carbonate de soude et en suspension dans l'alcool
<Desc/Clms Page number 4>
éthylique, pendant 2 à3 heures, en prenant les mêmes précau- tions que ci-dessus en ce qui concerne l'élévation de la tem- pérature.
On filtre le produit de la réaction et on fait évaporer le filtrat sous vide pour en chasser l'alcool. Il reste un pro- duit huileux dont on chasse l'excès de pipérazine par distilla- tion sous 1 mm de pression jusqu'à 125 ,, Le produit résiduaire jaune foncé est traité par 1'acide chlorhydrique à 10% à 100.0 pendant 12 heures, pour éliminer le groupement formyl; il est ensuite évaporé jusqu'à consistance sirupeuse et repris par l'al- cool éthylique à l'ébullition jusqu'à compléta miscibilité ; il est ensuite décoloré sur charbon, filtré et laissé au froid pendant environ 15 heures.
Le dichlorhydrate de 3'4'. diméthoxybenzyl di-éthylène diamine précipite en aiguilles blanches; on essore et on lave a l'éther sulfurique anhydre.
Il est évident que l'on peut apporter aux modes de pré- paration ci-dessus décrits des modifications dans le domaine des équivalences techniques sans, pour cela, s'écarter du cadre de la présente invention- REVENDICATIONS titre de produits industriels nouveaux la N-3'4'- diméthoxy- benzyl- pipérazine ou 3'4'- diméthoxy- benzyl- di- éthylène- diamine, ses sels minéraux ou organiques et ses dé- rivés, notamment sur dérivé acylé en 4.
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processes for its preparation
A subject of the present invention is, as new industrial products, a novel substituted derivative of piperazine, namely N- 3 ', 4'-dimethoxybenzyl-piperazine or 3', 4'-dimethoxybenzyl. - di-ethylenediamine corresponding to the formula
EMI1.1
as well as its salts and derivatives.
A subject of the invention is also processes for obtaining said derivative.
The latter has very interesting pharmacological properties, in particular as a peripheral hypotensive agent;
<Desc / Clms Page number 2>
it can be used in the pure state or in the form of its salts of mineral or organic acids, or alternatively in the form of an acyl derivative in position 4.
Dimethoxybenzylpiperazine is a peripheral vasodilator which acts on the vascular smooth fiber without any action on the autonomic nervous system. It can be used for the treatment of arteritis and co ro naritis.
It is characterized
1) by its very low toxicity (132 mg / kg by intravenous methods in mice);
2) its high activity (0.100 mg / kg by intravenous methods in dogs);
3) by the fact that it does not cause any heart depression, but on the contrary stimulates the heart.
Dimethoxybenzylpiperazine has, moreover, the property of being a general depressant of smooth fibers, in particular of the intestine, on the whole animal, but not on isolated organs.
This new product of the crude formula CL3H2ON2C2a for molecular mass 236. It is a base soluble in water, alcohol and various organic solvents. Its dihydrochloride is soluble in water and in hot alcohol; it is insoluble in nonpolar solvents. It is presented as a white crystalline powder which melts at 222-226.
The product can be prepared by the following methods: 1 - By the reaction of di-ethylene dianine with a 3,4-dimethoxy-benzyl halide.
2 - By the reaction of a mono-N substituted derivative of di-ethylene diamine with a halide of 3,4. dimethoxy-benzyl, followed by a reaction allowing the cleavage of the initial substituent N radical.
<Desc / Clms Page number 3>
5 - By the reaction of 3,4-dimethoxy-benzyl amine with morpholine or its derivatives.
By the reaction of the 3,4, dimethoxybenzyl amine on the ssss'. halogen-ethyl-amines.
5 - By the reaction of dimethoxybenzy, - (ssss'- di-halogenoethylamine with ammonia.
By way of nonlimiting examples, the preparation methods may be as follows: Example 1
Chloromethyl veratrol is allowed to act, molecule by molecule, on anhydrous di-ethylenediamine (piperazine), in the presence of anhydrous sodium carbonate suspended in ethyl alcohol, and with vigorous stirring for three hours. . Care is taken to avoid any too abrupt rise in temperature which is limited by the boiling point of ethyl alcohol.
The product obtained is then filtered and the filtrate is saturated with hydrochloric acid, after which it is left to stand for about 15 hours in a cooler.
The following derivatives are separated by crystallizations and fractional extractions: -Di-ethylene diamine hydrochloride.
-Monodimethoxy benzyl di-ethylene diamine dihydrochloride.
-Bi-dimethoxy benzyl 14 diethylenediamine dihydrochloride.
Example II
Mono-formyl diethylenediamine is made to act, molecule by molecule, on chloromethyl veratrol, in the presence of 1.5 molecules of sodium carbonate and in suspension in alcohol.
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ethyl alcohol for 2 to 3 hours, taking the same precautions as above with regard to the rise in temperature.
The reaction product is filtered and the filtrate is evaporated in vacuo to remove the alcohol. An oily product remains, from which the excess piperazine is removed by distillation under 1 mm of pressure up to 125. The dark yellow waste product is treated with 10% hydrochloric acid at 100.0 for 12 hours. , to remove the formyl group; it is then evaporated to a syrupy consistency and taken up in ethyl alcohol at the boiling point until completely miscible; it is then decolorized on charcoal, filtered and left in the cold for about 15 hours.
3'4 'dihydrochloride. dimethoxybenzyl di-ethylene diamine precipitates in white needles; filtered off and washed with anhydrous sulfuric ether.
It is obvious that modifications can be made to the methods of preparation described above in the field of technical equivalences without, for this, departing from the scope of the present invention. CLAIMS as new industrial products the N -3'4'- dimethoxy-benzyl-piperazine or 3'4'-dimethoxy-benzyl-di-ethylenediamine, its inorganic or organic salts and its derivatives, in particular on acyl derivative in 4.
Claims (1)
Publications (1)
Publication Number | Publication Date |
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BE582546A true BE582546A (en) |
Family
ID=191309
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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BE582546D BE582546A (en) |
Country Status (1)
Country | Link |
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BE (1) | BE582546A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1193053B (en) * | 1961-04-12 | 1965-05-20 | Science Union Et Cie I Soc Fr | Process for the preparation of piperazine derivatives |
-
0
- BE BE582546D patent/BE582546A/fr unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1193053B (en) * | 1961-04-12 | 1965-05-20 | Science Union Et Cie I Soc Fr | Process for the preparation of piperazine derivatives |
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