CH259713A - Process for the preparation of a biguanide derivative. - Google Patents
Process for the preparation of a biguanide derivative.Info
- Publication number
- CH259713A CH259713A CH259713DA CH259713A CH 259713 A CH259713 A CH 259713A CH 259713D A CH259713D A CH 259713DA CH 259713 A CH259713 A CH 259713A
- Authority
- CH
- Switzerland
- Prior art keywords
- preparation
- bromo
- iodophenyl
- biguanide derivative
- water
- Prior art date
Links
- 238000002360 preparation method Methods 0.000 title claims description 5
- 238000000034 method Methods 0.000 title claims description 4
- 150000004283 biguanides Chemical class 0.000 title description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 4
- HBCBLDVYTZWYLL-UHFFFAOYSA-N 3-bromo-4-iodoaniline Chemical compound NC1=CC=C(I)C(Br)=C1 HBCBLDVYTZWYLL-UHFFFAOYSA-N 0.000 claims description 2
- 239000000155 melt Substances 0.000 claims description 2
- 230000000078 anti-malarial effect Effects 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 150000003839 salts Chemical class 0.000 description 5
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- AFVFQIVMOAPDHO-UHFFFAOYSA-N Methanesulfonic acid Chemical compound CS(O)(=O)=O AFVFQIVMOAPDHO-UHFFFAOYSA-N 0.000 description 2
- 239000002246 antineoplastic agent Substances 0.000 description 2
- 229940127089 cytotoxic agent Drugs 0.000 description 2
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- XAIPIJFEACIWEQ-UHFFFAOYSA-N 2-[2-(2-carboxyphenoxy)ethoxy]benzoic acid Chemical compound OC(=O)C1=CC=CC=C1OCCOC1=CC=CC=C1C(O)=O XAIPIJFEACIWEQ-UHFFFAOYSA-N 0.000 description 1
- ZNQVEEAIQZEUHB-UHFFFAOYSA-N 2-ethoxyethanol Chemical compound CCOCCO ZNQVEEAIQZEUHB-UHFFFAOYSA-N 0.000 description 1
- -1 3-bromo-4-iodo-aniline chlorohydrate Chemical compound 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 239000003430 antimalarial agent Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- QGBSISYHAICWAH-UHFFFAOYSA-N dicyandiamide Chemical class NC(N)=NC#N QGBSISYHAICWAH-UHFFFAOYSA-N 0.000 description 1
- IDGUHHHQCWSQLU-UHFFFAOYSA-N ethanol;hydrate Chemical compound O.CCO IDGUHHHQCWSQLU-UHFFFAOYSA-N 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000004310 lactic acid Substances 0.000 description 1
- 235000014655 lactic acid Nutrition 0.000 description 1
- 229940098779 methanesulfonic acid Drugs 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C279/00—Derivatives of guanidine, i.e. compounds containing the group, the singly-bound nitrogen atoms not being part of nitro or nitroso groups
- C07C279/20—Derivatives of guanidine, i.e. compounds containing the group, the singly-bound nitrogen atoms not being part of nitro or nitroso groups containing any of the groups, X being a hetero atom, Y being any atom, e.g. acylguanidines
- C07C279/24—Y being a hetero atom
- C07C279/26—X and Y being nitrogen atoms, i.e. biguanides
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Verfahren zur Herstellung eines Biguanidderivates. Die vorliegende Erfindung betrifft ein Verfahren zur Herstellung von Nl-3-Brom- 4-jodphenyl-N'-ä.thylbiguanid, welches ein wertvolles chemotherapeutisches Mittel ist oder als Zwischenprodukt für die Herstellung von chemotherapeutischen Mitteln verwendet werden kann. Es ist insbesondere ein wert.. volles Antimalariamittel.
Erfindungsgemäss wird die besagte neue Verbindung, nämlich Nl-3-Brom-4-jodphenyl- N'-äthylbiguanid, dadurch erhalten, dass man N'-Äthyldicyandiamid mit 3-Brom-4-jod- anilin umsetzt.
Die Umsetzung erfolgt zweckmässig durch Erhitzen eines Salzes des Amins mit dem sub stituierten Dicyandiamid in Gegenwart eines Lösungsmittels, wie z. B. Wasser oder Äthoxyäthanol.
Das NI-3-Brom-4-jodphenyl-NS-äthylbigua- nid stellt eine starke Base dar, welche mit organischen und anorganischen Säuren be ständige Salze ergibt, die in manchen Fällen in Wasser leicht löslich sind. Die Salze lassen sich dadurch herstellen, dass die Base in wäss- rigen Lösungen der Säure gelöst und hierauf das Wasser verdampft wird, doch können sie in trockener Form bequemer durch Ver mischen der Komponenten in einem organi schen Lösungsmittel, wie z. B. Aceton, oder in einem Alkohol, in welchem die Salze spär lich löslich sind, hergestellt werden.
Auf diese Weise kann man beispielsweise die Salze mii Essigsäure, Milchsäure, Methansulfonsäure, l@lethylendisalicylsäure, Methylen-bis-ss-oxy- naphthoesäure und Salzsäure bequem her stellen.
Das folgende Beispiel diene zur Erläute rung der Erfindung.
<I>Beispiel:</I> Ein Gemisch von 11,2 Teilen N'-Äthyl- dicyandiamid und 23,4 Teilen 3-Brom-4-jod- anilin-chlorhYdrat in 40 Teilen Wasser wird während 3 Stunden unter Rückfluss zum Sie den erhitzt. Hierauf lässt man das Gemisch. abkühlen, worauf abfiltriert wird. Der feste Rückstand wird mit kaltem Wasser gewaschen und aus Wasser umkristallisiert.
Auf diese 'f4Teise erhält man Nl-3-Brom-4-jodphenyl-N'- äthylbiguanid in Form seines Monohydro- chlorids, welches bei 220 bis 221 C schmilzt.
Process for the preparation of a biguanide derivative. The present invention relates to a process for the preparation of Nl-3-bromo-4-iodophenyl-N'-a.thylbiguanide which is a valuable chemotherapeutic agent or which can be used as an intermediate for the preparation of chemotherapeutic agents. In particular, it's a valuable .. full antimalarial drug.
According to the invention, said new compound, namely Nl-3-bromo-4-iodophenyl-N'-ethylbiguanide, is obtained by reacting N'-ethyldicyandiamide with 3-bromo-4-iodo-aniline.
The reaction is conveniently carried out by heating a salt of the amine with the sub-substituted dicyandiamide in the presence of a solvent, such as. B. water or ethoxyethanol.
The NI-3-bromo-4-iodophenyl-NS-äthylbigua- nid is a strong base which, with organic and inorganic acids, results in stable salts which in some cases are easily soluble in water. The salts can be prepared in that the base is dissolved in aqueous solutions of the acid and then the water is evaporated, but they can be more convenient in dry form by mixing the components in an organic solvent, such as. B. acetone, or in an alcohol in which the salts are sparse Lich soluble, are produced.
In this way, for example, the salts with acetic acid, lactic acid, methanesulfonic acid, ethylenedisalicylic acid, methylene-bis-β-oxynaphthoic acid and hydrochloric acid can be conveniently prepared.
The following example serves to explain the invention.
<I> Example: </I> A mixture of 11.2 parts of N'-ethyl dicyandiamide and 23.4 parts of 3-bromo-4-iodo-aniline chlorohydrate in 40 parts of water is refluxed for 3 hours heated. Then leave the mixture. cool, whereupon it is filtered off. The solid residue is washed with cold water and recrystallized from water.
In this way, Nl-3-bromo-4-iodophenyl-N'-ethyl biguanide is obtained in the form of its monohydrochloride, which melts at 220 to 221.degree.
Claims (1)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB259713X | 1945-10-08 | ||
| GB170946X | 1946-09-17 | ||
| CH254800T | 1946-10-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH259713A true CH259713A (en) | 1949-01-31 |
Family
ID=27178069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH259713D CH259713A (en) | 1945-10-08 | 1946-10-08 | Process for the preparation of a biguanide derivative. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH259713A (en) |
-
1946
- 1946-10-08 CH CH259713D patent/CH259713A/en unknown
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