CH192995A - Process for the preparation of 4-butylamino-benzoic acid-B-diethylaminoethylamide monohydrochloride. - Google Patents
Process for the preparation of 4-butylamino-benzoic acid-B-diethylaminoethylamide monohydrochloride.Info
- Publication number
- CH192995A CH192995A CH192995DA CH192995A CH 192995 A CH192995 A CH 192995A CH 192995D A CH192995D A CH 192995DA CH 192995 A CH192995 A CH 192995A
- Authority
- CH
- Switzerland
- Prior art keywords
- preparation
- butylamino
- diethylaminoethylamide
- monohydrochloride
- benzoic acid
- Prior art date
Links
- VEXZGXHMUGYJMC-UHFFFAOYSA-N HCl Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 title claims description 9
- 238000000034 method Methods 0.000 title claims description 5
- 238000002360 preparation method Methods 0.000 title claims description 4
- 239000007795 chemical reaction product Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- -1 4-butyl Chemical group 0.000 claims description 5
- FNAYJLTWWSHTPO-UHFFFAOYSA-N Cl.C(CCC)NC1=CC=C(C(=O)Cl)C=C1 Chemical compound Cl.C(CCC)NC1=CC=C(C(=O)Cl)C=C1 FNAYJLTWWSHTPO-UHFFFAOYSA-N 0.000 claims description 3
- UDGSVBYJWHOHNN-UHFFFAOYSA-N N',N'-diethylethane-1,2-diamine Chemical compound CCN(CC)CCN UDGSVBYJWHOHNN-UHFFFAOYSA-N 0.000 claims description 3
- 239000000825 pharmaceutical preparation Substances 0.000 claims description 3
- BVKZGUZCCUSVTD-UHFFFAOYSA-N Carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 claims description 2
- 150000003839 salts Chemical class 0.000 claims description 2
- 239000011780 sodium chloride Substances 0.000 claims description 2
- UHOVQNZJYSORNB-UHFFFAOYSA-N benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 8
- CDBYLPFSWZWCQE-UHFFFAOYSA-L sodium carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000001187 sodium carbonate Substances 0.000 description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- YCCRFDDXAVMSLM-UHFFFAOYSA-N 4-(butylamino)benzoic acid Chemical compound CCCCNC1=CC=C(C(O)=O)C=C1 YCCRFDDXAVMSLM-UHFFFAOYSA-N 0.000 description 1
- UHZYTMXLRWXGPK-UHFFFAOYSA-N Phosphorus pentachloride Chemical compound ClP(Cl)(Cl)(Cl)Cl UHZYTMXLRWXGPK-UHFFFAOYSA-N 0.000 description 1
- CSCPPACGZOOCGX-UHFFFAOYSA-N acetone Substances CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 1
- 230000003444 anaesthetic Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- BBCSMRJVLOGFMO-UHFFFAOYSA-N ethyl 2-(hexylamino)benzoate Chemical compound CCCCCCNC1=CC=CC=C1C(=O)OCC BBCSMRJVLOGFMO-UHFFFAOYSA-N 0.000 description 1
- 239000012458 free base Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000003589 local anesthetic agent Substances 0.000 description 1
- 230000000144 pharmacologic effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- ZMANZCXQSJIPKH-UHFFFAOYSA-N triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 1
Description
Verfahren zur Darstellung von 4-Butylamino-benzoesäure-ss- diäthylaminoäthylamidmonohydroehloi-id. Gegenstand des Hauptpatentes ist ein Ver fahren zur Darstellung von N-Hexylanthra- nilsäure-ss-diäthylaminoäthylamid, welches dadurch gekennzeichnet ist, dass man einen N-Hexylanthranilsäureester, beispielsweise N-Hexylanthranilsäureäthylester, . mit 1- A.mino-2-diäthylaminoäthan umsetzt.
Das Endprodukt zeichnet sich .durch eine vor- zügliehe lokalanaesthesierende Wirkung aus. Es wurde nun gefunden, .dass man zu einer Verbindung von gleich wertvollen pharmakologischen Eigenschaften gelangt, wenn man ein Salz eines 4-Butylamino- benzoylhalogenids, beispielsweise 4-Butyl- aminobenzoylchloridhydrochlorid, mit 1- 1-Amino-2-,diäthylaminoäthan umsetzt, das Umsetzungsprodukt sodaalkalisch macht,
und es alsdann mit Hilfe von Salzsäure neutraIi- siert. Das Endprodukt bildet farblose Kri stalle vom F. 140-141 C, die sehr leicht löslich in Wasser sind. Es soll als pharma zeutisches Präparat verwendet werden.
<I>Beispiel:</I> 4 - Butylaminobenzoylchloridhydrochlorid wird aus 4-Butylaminobenzoesäure und Pho.s- phorpentachlorid in Benzolverdünnung durch sechsstündiges Vermahlen in der Kugelmühle bei Zimmertemperatur als farblose, in Benzol ganz unlösliches Kristallpulver gewonnen. In eine Mischung von 25 Gewichsteilen 1-Amino-2-diäthylaminoäthan und 100 Ge wichtsteilen Benzol werden 25 Gewichtsteile 4-Butylaminobenzoylchloridhydrochlorid ein getragen.
Es entsteht eine klare Lösung, die BO Minuten auf dem Wasserbade unter Rückfluss nacherhitzt wird. Dieselbe wird nach dem Erkalten zunächst mit einer ver dünnten Natriumcarbonatlösung, enthaltend 11 Gewichtsteile trockenes Natriumcarbonat, und darauf mehrere Male mit Wasser ausge- schüttelt. Dann wird die Benzolflüssigkeit mit soviel 2/1 n-Salzsäure ausgeschüttelt als nötig ist,
um eine gerade lackmusneutrale wässrige Lösung zu bekommen; diese gibt abgetrennt und auf dem Wasserbade einge dampft 4-Butylaminobenzoesäure-ss-diäthyl- aminoäthylamidmonohydrochlorid in fester Farm. Nach dem Umkristaliisieren aus Me thylalkohol - Acetongemisch bildet es farb lose Kristalle, F. 140-141' C, die sehr leicht löslich sind in Wasser. Die freie Base ist ölig. Das Endprodukt soll als pharma zeutisches Präparat verwendet werden.
Process for the preparation of 4-butylamino-benzoic acid-ss- diethylaminoäthylamidmonohydroehloi-id. The main patent is a process for the preparation of N-hexylanthranilic acid-ss-diethylaminoäthylamid, which is characterized in that an N-hexylanthranilic acid ester, for example N-hexylanthranilic acid ethyl ester. with 1- A.mino-2-diethylaminoethane.
The end product is characterized by an excellent local anesthetic effect. It has now been found that a compound of equally valuable pharmacological properties is obtained if a salt of a 4-butylamino benzoyl halide, for example 4-butyl aminobenzoyl chloride hydrochloride, is reacted with 1- 1-amino-2-, diethylaminoethane, which Makes the reaction product alkaline to soda,
and then neutralized with the help of hydrochloric acid. The end product forms colorless crystals with a temperature of 140-141 C, which are very easily soluble in water. It is intended to be used as a pharmaceutical preparation.
<I> Example: </I> 4 - butylaminobenzoyl chloride hydrochloride is obtained from 4-butylaminobenzoic acid and phosphorus pentachloride diluted in benzene by grinding for six hours in a ball mill at room temperature as a colorless crystal powder that is completely insoluble in benzene. In a mixture of 25 parts by weight of 1-amino-2-diethylaminoethane and 100 parts by weight of benzene, 25 parts by weight of 4-butylaminobenzoyl chloride hydrochloride are carried.
A clear solution results, which is refluxed for BO minutes on the water bath. After cooling, it is first shaken with a dilute sodium carbonate solution containing 11 parts by weight of dry sodium carbonate and then shaken out several times with water. Then the benzene liquid is shaken out with as much 2/1 N hydrochloric acid as is necessary
to get a just litmus-neutral aqueous solution; these are separated and evaporated on the water bath 4-butylaminobenzoic acid-ss-diethylaminoethylamide monohydrochloride in solid form. After recrystallization from methyl alcohol - acetone mixture, it forms colorless crystals, mp 140-141 ° C, which are very easily soluble in water. The free base is oily. The end product should be used as a pharmaceutical preparation.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE192995X | 1934-07-26 | ||
CH186668T | 1935-07-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH192995A true CH192995A (en) | 1937-09-15 |
Family
ID=25721402
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH192995D CH192995A (en) | 1934-07-26 | 1935-07-22 | Process for the preparation of 4-butylamino-benzoic acid-B-diethylaminoethylamide monohydrochloride. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH192995A (en) |
-
1935
- 1935-07-22 CH CH192995D patent/CH192995A/en unknown
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