CH259661A - Process for the preparation of a biguanide derivative. - Google Patents
Process for the preparation of a biguanide derivative.Info
- Publication number
- CH259661A CH259661A CH259661DA CH259661A CH 259661 A CH259661 A CH 259661A CH 259661D A CH259661D A CH 259661DA CH 259661 A CH259661 A CH 259661A
- Authority
- CH
- Switzerland
- Prior art keywords
- preparation
- diiodophenyl
- biguanide derivative
- acid
- ethylbiguanide
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 4
- 238000002360 preparation method Methods 0.000 title 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 3
- GHWMYAKHPIIZNH-UHFFFAOYSA-N 3,4-diiodoaniline Chemical compound NC1=CC=C(I)C(I)=C1 GHWMYAKHPIIZNH-UHFFFAOYSA-N 0.000 claims description 2
- 239000000155 melt Substances 0.000 claims description 2
- 230000000078 anti-malarial effect Effects 0.000 claims 1
- 150000003839 salts Chemical class 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-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
- -1 N1-3 Chemical class 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
- SWHSXWLSBBYLGM-UHFFFAOYSA-N 2-[(2-carboxyphenoxy)methoxy]benzoic acid Chemical compound OC(=O)C1=CC=CC=C1OCOC1=CC=CC=C1C(O)=O SWHSXWLSBBYLGM-UHFFFAOYSA-N 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
- 238000001704 evaporation Methods 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 N1-3,4-Dijod- plienyl-N'-ätliylbiguanid, welches ein wert volles chemotherapeutisches Mittel ist oder als Zwischenprodukt für die Herstellung von chemotherapeutischen Mitteln verwendet wer den kann. Es ist insbesondere ein wertvolles Antimalariamittel.
Erfindungsgemäss wird die besagte neue Verbindung, nämlich N1-3,4-Dijodphenyl-N'- ü.tliylbiguanid, dadurch erhalten, dass man N'-Ätliyldicyandiamid mit 3,4-Dijodanilin umsetzt.
Die Umsetzung erfolgt zweckmässig durch Erhitzen eines Salzes des Amins mit dem substituierten Dic@jandiamid in Gegenwart eines Lösungsmittels, wie z. B. Wasser oder ss-Ä tlioxyäthanol.
Das N'-3,4-Dijodphenyl-N'-äthylbiguanid stellt eine starke Base dar, welche mit orga nischen und anorganischen Säuren beständige Salze ergibt, die in manchen Fällen in Wasser leicht löslich sind. Die Salze lassen sich da durch herstellen, dass die Base in wässrigen Lösungen der Säure gelöst und hierauf das Wasser verdampft wird, doch können sie in trockener Form. bequemer durch Vermischen der Komponenten in einem organischen Lö sungsmittel, wie z. B. Aceton, oder in einem Alkohol, in welchem die Salze spärlich löslich sind, hergestellt werden.
Auf diese Weise kann man beispielsweise die Salze mit Essig säure, Milchsäure, Methansulfonsäure, Me- thylendisalicy lsäure, Methylen-bis-ss-oxynaph- thoesäure und Salzsäure bequem herstellen.
Das folgende Beispiel diene zur Erläute rung der Erfindung.
<I>Beispiel:</I> Ein Gemisch von 11,2 Teilen N3-Äthyl- dicy andiamid und 38,2 Teilen 3,4-Dijodani- lin-chlorhydrat in 125 Teilen ss-Äthoxyäthanoi wird während 3 Stunden unter Rückfluss zum Sieden erhitzt. Hierauf lässt man das Ge misch abkühlen, worauf abfiltriert wird. Der feste Rückstand wird mit kaltem Äthy laeetat gewaschen und aus Wasser unikristallisiert.
Auf diese Weise erhält man N1-3,4-Dijod- phenyl - N' - äthylbiguanid in Form seines 3vIonohydrochlorids, welches bei 212-213 C schmilzt.
Process for the preparation of a biguanide derivative. The present invention relates to a process for the preparation of N1-3,4-diiodoplienyl-N'-ätliylbiguanid, which is a valuable chemotherapeutic agent or can be used as an intermediate for the preparation of chemotherapeutic agents. It is a particularly valuable antimalarial drug.
According to the invention, said new compound, namely N1-3,4-diiodophenyl-N'- ü.tliylbiguanid, is obtained by reacting N'-Ätliyldicyandiamid with 3,4-diiodaniline.
The reaction is conveniently carried out by heating a salt of the amine with the substituted Dic @ jandiamid in the presence of a solvent, such as. B. water or ss-Ä tlioxyäthanol.
The N'-3,4-diiodophenyl-N'-ethylbiguanide 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 produced by dissolving the base in aqueous solutions of the acid and then evaporating the water, but they can be in dry form. more convenient by mixing the components in an organic solvent such. B. acetone, or in an alcohol in which the salts are sparingly soluble.
In this way, for example, the salts with acetic acid, lactic acid, methanesulfonic acid, methylenedisalicylic 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 N3-ethyl dicyandiamide and 38.2 parts of 3,4-diiodaniline chlorohydrate in 125 parts of ß-ethoxyethanoi is refluxed for 3 hours heated. The mixture is then allowed to cool, whereupon it is filtered off. The solid residue is washed with cold ethyl acetate and unicrystallized from water.
In this way, N1-3,4-diiodophenyl - N '- ethyl biguanide is obtained in the form of its 3vionohydrochloride, which melts at 212-213 ° C.
Claims (1)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB259661X | 1945-10-08 | ||
| GB170946X | 1946-09-17 | ||
| CH254800T | 1946-10-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH259661A true CH259661A (en) | 1949-01-31 |
Family
ID=27178017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH259661D CH259661A (en) | 1945-10-08 | 1946-10-08 | Process for the preparation of a biguanide derivative. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH259661A (en) |
-
1946
- 1946-10-08 CH CH259661D patent/CH259661A/en unknown
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