AT297681B - Process for the preparation of new äthinyl-substituted 1-phenoxy-2-hydroxy-3-butylaminopropanes, their optically active isomers and acid addition salts - Google Patents
Process for the preparation of new äthinyl-substituted 1-phenoxy-2-hydroxy-3-butylaminopropanes, their optically active isomers and acid addition saltsInfo
- Publication number
- AT297681B AT297681B AT479468A AT479468A AT297681B AT 297681 B AT297681 B AT 297681B AT 479468 A AT479468 A AT 479468A AT 479468 A AT479468 A AT 479468A AT 297681 B AT297681 B AT 297681B
- Authority
- AT
- Austria
- Prior art keywords
- hydroxy
- sep
- new
- phenoxy
- optically active
- Prior art date
Links
- 239000002253 acid Substances 0.000 title claims description 9
- 150000003839 salts Chemical class 0.000 title claims description 8
- 238000000034 method Methods 0.000 title claims description 7
- 238000002360 preparation method Methods 0.000 title claims description 4
- JCLZQRQJFXFGGK-UHFFFAOYSA-N 1-(butylamino)-3-phenoxypropan-2-ol Chemical class CCCCNCC(O)COC1=CC=CC=C1 JCLZQRQJFXFGGK-UHFFFAOYSA-N 0.000 title description 2
- 150000001875 compounds Chemical class 0.000 claims description 13
- 150000003944 halohydrins Chemical class 0.000 claims description 4
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 3
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 claims description 3
- 150000007513 acids Chemical class 0.000 claims description 2
- 238000001640 fractional crystallisation Methods 0.000 claims description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 14
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 9
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 8
- CWYZDPHNAGSFQB-UHFFFAOYSA-N n-propylbutan-1-amine Chemical compound CCCCNCCC CWYZDPHNAGSFQB-UHFFFAOYSA-N 0.000 description 5
- HQABUPZFAYXKJW-UHFFFAOYSA-N butan-1-amine Chemical compound CCCCN HQABUPZFAYXKJW-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- BRLQWZUYTZBJKN-UHFFFAOYSA-N Epichlorohydrin Chemical compound ClCC1CO1 BRLQWZUYTZBJKN-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 238000011282 treatment Methods 0.000 description 3
- QLWSYRNMJMYSBE-UHFFFAOYSA-N 2-[(2-ethynylphenoxy)methyl]oxirane Chemical compound C#CC1=CC=CC=C1OCC1OC1 QLWSYRNMJMYSBE-UHFFFAOYSA-N 0.000 description 2
- KTLQDZRFPKXZSB-UHFFFAOYSA-N 2-ethynylphenol Chemical compound OC1=CC=CC=C1C#C KTLQDZRFPKXZSB-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 241000700198 Cavia Species 0.000 description 2
- AFVFQIVMOAPDHO-UHFFFAOYSA-N Methanesulfonic acid Chemical compound CS(O)(=O)=O AFVFQIVMOAPDHO-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 229910001413 alkali metal ion Inorganic materials 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 150000002118 epoxides Chemical class 0.000 description 2
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 2
- 230000001225 therapeutic effect Effects 0.000 description 2
- JWZZKOKVBUJMES-UHFFFAOYSA-N (+-)-Isoprenaline Chemical compound CC(C)NCC(O)C1=CC=C(O)C(O)=C1 JWZZKOKVBUJMES-UHFFFAOYSA-N 0.000 description 1
- BLUMOGCWKTZKNJ-UHFFFAOYSA-N 1-(tert-butylamino)-3-(2-ethynylphenoxy)propan-2-ol Chemical compound CC(C)(C)NCC(O)COC1=CC=CC=C1C#C BLUMOGCWKTZKNJ-UHFFFAOYSA-N 0.000 description 1
- KMGUEILFFWDGFV-UHFFFAOYSA-N 2-benzoyl-2-benzoyloxy-3-hydroxybutanedioic acid Chemical compound C=1C=CC=CC=1C(=O)C(C(C(O)=O)O)(C(O)=O)OC(=O)C1=CC=CC=C1 KMGUEILFFWDGFV-UHFFFAOYSA-N 0.000 description 1
- BMYNFMYTOJXKLE-UHFFFAOYSA-N 3-azaniumyl-2-hydroxypropanoate Chemical compound NCC(O)C(O)=O BMYNFMYTOJXKLE-UHFFFAOYSA-N 0.000 description 1
- YIUIVFFUEVPRIU-UHFFFAOYSA-N 8-chlorotheophylline Chemical compound O=C1N(C)C(=O)N(C)C2=NC(Cl)=N[C]21 YIUIVFFUEVPRIU-UHFFFAOYSA-N 0.000 description 1
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 description 1
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 1
- 241000699670 Mus sp. Species 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- 239000000150 Sympathomimetic Substances 0.000 description 1
- 208000001871 Tachycardia Diseases 0.000 description 1
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 description 1
- 235000011054 acetic acid Nutrition 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 230000003042 antagnostic effect Effects 0.000 description 1
- 230000003276 anti-hypertensive effect Effects 0.000 description 1
- 239000008346 aqueous phase Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 206010003119 arrhythmia Diseases 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000000059 bradycardiac effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 150000001721 carbon Chemical group 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000003218 coronary vasodilator agent Substances 0.000 description 1
- 210000004351 coronary vessel Anatomy 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000007884 disintegrant Substances 0.000 description 1
- 239000008298 dragée Substances 0.000 description 1
- 230000002526 effect on cardiovascular system Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- -1 flavorings Substances 0.000 description 1
- 235000003599 food sweetener Nutrition 0.000 description 1
- 150000003840 hydrochlorides Chemical class 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 229940039009 isoproterenol Drugs 0.000 description 1
- 239000004310 lactic acid Substances 0.000 description 1
- 235000014655 lactic acid Nutrition 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- 229940098779 methanesulfonic acid Drugs 0.000 description 1
- VLSTXUUYLIALPB-UHFFFAOYSA-N n-propan-2-ylpropan-1-amine Chemical compound CCCNC(C)C VLSTXUUYLIALPB-UHFFFAOYSA-N 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 150000004707 phenolate Chemical class 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000011321 prophylaxis Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000003765 sweetening agent Substances 0.000 description 1
- 230000001975 sympathomimetic effect Effects 0.000 description 1
- 229940064707 sympathomimetics Drugs 0.000 description 1
- 239000003826 tablet Substances 0.000 description 1
- 230000006794 tachycardia Effects 0.000 description 1
- 239000011975 tartaric acid Substances 0.000 description 1
- 235000002906 tartaric acid Nutrition 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
Description
<Desc/Clms Page number 1>
Verfahren zur Herstellung von neuen äthinylsubstituierten l-Phenoxy-2-hydroxy-3-butylaminopropanen, deren optisch aktiven Isomeren und Säureadditionssalzen
Die Erfindung betrifft ein Verfahren zur Herstellung neuer l-Phenoxy-2-hydroxy-3-butylamino- propane.
Die neuen l-Phenoxy-2-hydroxy-3-butylaminopropane haben die allgemeine Formel
EMI1.1
in der Rdie tertiäre oder sekundäre Butylgruppe bedeutet und die Äthinylgruppe vorzugsweise in 2-Stellung des Benzolkerns gebunden ist.
Die neuen Verbindungen können hergestellt werden durch Umsetzung eines Epoxyds oder Halogenhydrins der allgemeinen Formeln
EMI1.2
EMI1.3
<Desc/Clms Page number 2>
EMI2.1
in der Kt Wasserstoff oder ein Kation (beispielsweise ein Alkalimetallion) bedeutet, mit Epichlorhydrin in alkalischer Lösung hergestellt werden. Die hiezu benötigten Ausgangsphenole der Formel IV (Kt = H)
EMI2.2
471schriebenen Methode herstellbar. Sie können durch Behandeln mit wässerigen Alkalien in die entsprechenden Phenolate (Kt = Alkalimetallion) überführt werden.
Die Epoxyde der Formel IIa können ihrerseits zur Herstellung der Halogenhydrine der Formel IIb durch Anlagerung der entsprechenden Halogenwasserstoffsäure verwendet werden.
Die Amine der Formel III sind alle bekannt.
Die neuen Verbindungen der Formel I besitzen an der-CHOH-Gruppierung ein asymmetrisches Kohlenstoffatom und kommen daher in Form von Racematen wie auch von optisch aktiven Antipoden vor. Die optisch aktiven Verbindungen können erhalten werden, indem man entweder von optisch aktiven Ausgangsverbindungen ausgeht, wo diese existieren, oder indem man die Racemate auf übliche Weise, beispielsweise mittels Ditoluylweinsäure, Dibenzoylweinsäure oder 3-Bromcampher-8-sulfon- säure in die diastereomeren Salze überführt und diese durch fraktionierte Kristallisation trennt.
Die nach dem erfindungsgemässen Verfahren erhaltenen Verbindungen der Formellkönnen gewünschtenfalls in ihre physiologisch verträglichen Säureadditionssalze überführt werden. Für die Salzbildung geeignete Säuren sind beispielsweise Salzsäure, Bromwasserstoffsäure, Schwefelsäure, Methansulfonsäure, Maleinsäure, Essigsäure, Oxalsäure, Milchsäure, Weinsäure oder 8-Chlortheophyllin.
Die Verbindungen der Formel I (die üblicherweise in Form ihrer physiologisch verträglichen Säureadditionssalze zur Anwendung kommen) besitzen wertvolle therapeutische, insbesondere ss-adrenolytische Eigenschaften und können daher beispielsweise zur Behandlung oder Prophylaxe von Krankheiten der Herzkranzgefässe und zur Behandlung von Herzarrhythmien, insbesondere von Tachycardien, an Menschen eingesetzt werden. Auch die blutdrucksenkenden Eigenschaften der neuen Verbindungen sind therapeutisch interessant. Als wertvoll haben sich dabei insbesondere die Verbindungen herausgestellt, bei denen die Äthinylgruppe in der 2-Stellung des Benzolkerns fixiert ist.
Dabei erweist sich das 1- (2'-Äthinylphenoxy)-2-hydroxy-3-tert, butylaminopropan dem l- (2'-Äthinylphenoxy)-2-hydroxy- - 3-sek. butylaminopropan sowohl bezüglich seiner bradycardischen Eigenwirkung als auch bezüglich seiner isoproterenolantagonistischen Wirkung (beide getestet an Meerschweinchen) und seiner geringen Toxizität (getestet an Mäusen) überlegen und stellt die wirksamste Verbindung dar.
Die beiden vorgenannten Butylderivate zeigen ihrerseits gegenüber dem entsprechenden Isopropylderivat eine rund doppelt so grosse isoproterenol-antagonistische Wirkung, wie aus der nachstehenden Vergleichsübersicht hervorgeht :
EMI2.3
<tb>
<tb> isopro <SEP> terenol-antagonistische <SEP>
<tb> Verbindung <SEP> (als <SEP> HCl-Salz) <SEP> Wirkung
<tb> 1 <SEP> (2'-Äthinylphenoxy)-2-hydroxy-
<tb> - <SEP> 3-isopropylaminopropan <SEP>
<tb> (gemäss <SEP> österr. <SEP> Patentschrift <SEP> Nr. <SEP> 273076) <SEP> 39 <SEP> x <SEP> DCI
<tb> 1- <SEP> (2' <SEP> -Äthinylphenoxy)-2-hydroxy- <SEP>
<tb> - <SEP> 3-sek. <SEP> butylaminopropan <SEP>
<tb> (erfindungsgemäss) <SEP> 68 <SEP> x <SEP> DCI
<tb> 1- <SEP> (2'-Äthinylphenoxy)-2-hydroxy-
<tb> -3-ter.
<SEP> butylaminopropan
<tb> (erfindungsgemäss) <SEP> 89 <SEP> x <SEP> DCI
<tb>
Die Vergleichsversuche wurden an lebenden Meerschweinchen durchgeführt. Als Standardsubstanz diente 3, 4-Dichlorisoproterenol (DCI), dessen Wirkung gleich 1 gesetzt wurde.
Die Einzeldosis der neuen Verbindungen liegt bei l bis 300 mg (0, 016 bis 5 mg/kg), vorzugsweise
<Desc/Clms Page number 3>
bei 15 bis 100 mg (0, 25 bis 1, 66 mg/kg) für die orale Anwendung bzw. bei 0, 1 bis 25 mg (0, 002 bis 0, 40 mg/kg) für die parenterale Anwendung am Menschen.
Die galenische Verarbeitung der Verbindungen der allgemeinen Formel I zu den üblichen Anwendungsformen wie Lösungen, Emulsionen, Tabletten, Dragées oder Depotformen kann in bekannter Weise unter Heranziehung der dafür gebräuchlichen galenischen Hilfs-, Träger-, Spreng-, Binde-, Überzugsoder Schmiermittel, Geschmacksstoffe, Süssungsmittel, Mittel zur Erzielung eines Depoteffektes oder Löslichkeitsvermittler erfolgen. Die neuen Verbindungen können auch in Kombination mit andern pharmazeutischen Wirkstoffen wie beispielsweise herz- oder kreislaufwirksamen Sympathicomimetica oder Coronardilatatoren, angewendet werden.
EMI3.1
l : l- (2'-Äthinylphenoxy)-2-hydroxy-3-tert. butylaminopropan.
HC1 :12 g (0, 07 Mol) 1- (2'-Äthinylphenoxy)-2, 3-epoxypropan, durch Reaktion von 2-Äthinylphenol mit Epichlorhydrin in verdünnter NaOH gewonnen, werden in 100 ml Methanol gelöst, worauf 18 g (0, 25 Mol) tert. Butylamin zugegeben werden. Über Nacht wird bei Raumtemperatur stehen gelassen, sodann 2 h auf etwa 600C erwärmt. Nach Abdestillieren des Lösungsmittels im Vakuum wird der ver- bleibende Rückstand in verdünnter HCl gelöst und über Aktivkohle filtriert. Die klare wässerige Lösung wird dann mit NaOH alkalisch gestellt. Die ausfallenden basischen Anteile werden in Äther aufgenom- men, die ätherische Phase wird über MgS04 getrocknet und der Äther abdestilliert.
Der verbleibende ölige Rückstand wird in Äthanol gelöst und durch Zugabe von ätherischer HCl das Hydrochlorid ausge- fällt. Nach Isolierung des Kristallisats wird noch zweimal aus Äthanol unter Zugabe von Äther umkristallisiert. Fp. : 172 bis 174 C.
Beispiel 2 : 1- (2'-Äthinylphenoxy)-2-hydroxy-2-sek. butylaminopropan. HCl :
Das aus 10, 4 g (0, 088 Mol) 2-Äthinylphenol und 8, 8g (0, 095 Mol) Epichlorhydrin gewonnene rohe l- (2'-Äthinylphenoxy)-2, 3-epoxypropan (13, 8 g) wird in 120 ml Äthanol mit 22 g (0, 3 Mol) sek. Butyl- amin durch 2stündiges Kochen umgesetzt, Nach Abdestillieren der Lösungsmittel im Vakuum wird der Rückstand mit verdünnter HCl verrührt, mit Äther extrahiert und die wässerige Phase mit NaOH alka- lisch gestellt. Die ausfallende ölige Base wird in Äther aufgenommen, mit HO gewaschen, über MgSO getrocknet und der Äther abdestilliert. Der feste Rückstand wird aus EssigesterundPetrolätherumkristal- lisiert.
Die Base wird sodann in Äthanol gelöst, mit ätherischer HCl angesäuert und das ausfallende Hydrochlorid isoliert. Ausbeute : 7, 4 g, Fp. : 149 bis 151 C.
<Desc / Clms Page number 1>
Process for the preparation of new äthinyl-substituted l-phenoxy-2-hydroxy-3-butylaminopropanes, their optically active isomers and acid addition salts
The invention relates to a process for the preparation of new 1-phenoxy-2-hydroxy-3-butylaminopropanes.
The new l-phenoxy-2-hydroxy-3-butylaminopropanes have the general formula
EMI1.1
in which R denotes the tertiary or secondary butyl group and the ethynyl group is preferably bonded in the 2-position of the benzene nucleus.
The new compounds can be prepared by reacting an epoxide or halohydrin of the general formulas
EMI1.2
EMI1.3
<Desc / Clms Page number 2>
EMI2.1
in which Kt is hydrogen or a cation (for example an alkali metal ion), can be prepared with epichlorohydrin in alkaline solution. The starting phenols of the formula IV (Kt = H) required for this
EMI2.2
471 method can be produced. They can be converted into the corresponding phenolates (Kt = alkali metal ion) by treatment with aqueous alkalis.
The epoxides of the formula IIa can in turn be used to prepare the halohydrins of the formula IIb by addition of the corresponding hydrohalic acid.
The amines of the formula III are all known.
The new compounds of the formula I have an asymmetric carbon atom on the -CHOH group and therefore occur in the form of racemates as well as optically active antipodes. The optically active compounds can be obtained either by starting from optically active starting compounds, where they exist, or by converting the racemates into the diastereomeric salts in a conventional manner, for example by means of ditoluyltartaric acid, dibenzoyltartaric acid or 3-bromocamphor-8-sulfonic acid and separates them by fractional crystallization.
The compounds of the formula obtained by the process according to the invention can, if desired, be converted into their physiologically tolerable acid addition salts. Acids suitable for salt formation are, for example, hydrochloric acid, hydrobromic acid, sulfuric acid, methanesulfonic acid, maleic acid, acetic acid, oxalic acid, lactic acid, tartaric acid or 8-chlorotheophylline.
The compounds of the formula I (which are usually used in the form of their physiologically acceptable acid addition salts) have valuable therapeutic, in particular β-adrenolytic properties and can therefore be used, for example, for the treatment or prophylaxis of diseases of the coronary arteries and for the treatment of cardiac arrhythmias, in particular tachycardias People are used. The antihypertensive properties of the new compounds are also of therapeutic interest. The compounds in which the ethynyl group is fixed in the 2-position of the benzene nucleus have proven to be particularly valuable.
The 1- (2'-ethynylphenoxy) -2-hydroxy-3-tert-butylaminopropane proves to be the l- (2'-ethynylphenoxy) -2-hydroxy- 3-sec. butylaminopropane is superior both in terms of its own bradycardic effects and in terms of its isoproterenol antagonistic effect (both tested on guinea pigs) and its low toxicity (tested on mice) and is the most effective compound.
The two aforementioned butyl derivatives, for their part, show an isoproterenol-antagonistic effect that is around twice as large as the corresponding isopropyl derivative, as can be seen from the comparison overview below:
EMI2.3
<tb>
<tb> isopro <SEP> terenol-antagonistic <SEP>
<tb> compound <SEP> (as <SEP> HCl salt) <SEP> effect
<tb> 1 <SEP> (2'-ethynylphenoxy) -2-hydroxy-
<tb> - <SEP> 3-isopropylaminopropane <SEP>
<tb> (according to <SEP> Austrian <SEP> patent specification <SEP> No. <SEP> 273076) <SEP> 39 <SEP> x <SEP> DCI
<tb> 1- <SEP> (2 '<SEP> -ethynylphenoxy) -2-hydroxy- <SEP>
<tb> - <SEP> 3 sec. <SEP> butylaminopropane <SEP>
<tb> (according to the invention) <SEP> 68 <SEP> x <SEP> DCI
<tb> 1- <SEP> (2'-ethynylphenoxy) -2-hydroxy-
<tb> -3-ter.
<SEP> butylaminopropane
<tb> (according to the invention) <SEP> 89 <SEP> x <SEP> DCI
<tb>
The comparative experiments were carried out on live guinea pigs. 3,4-Dichloroisoproterenol (DCI), the effect of which was set equal to 1, was used as the standard substance.
The single dose of the new compounds is from 1 to 300 mg (0.016 to 5 mg / kg), preferably
<Desc / Clms Page number 3>
at 15 to 100 mg (0.25 to 1.66 mg / kg) for oral use and at 0.1 to 25 mg (0.002 to 0.40 mg / kg) for parenteral use in humans.
The pharmaceutical processing of the compounds of general formula I into the usual application forms such as solutions, emulsions, tablets, dragees or depot forms can be carried out in a known manner using the pharmaceutical auxiliaries, carriers, disintegrants, binders, coatings or lubricants, flavorings, Sweeteners, means to achieve a depot effect or solubilizers take place. The new compounds can also be used in combination with other pharmaceutical active ingredients, such as, for example, cardiovascular or circulatory sympathomimetics or coronary dilators.
EMI3.1
l: l- (2'-ethynylphenoxy) -2-hydroxy-3-tert. butylaminopropane.
HC1: 12 g (0.07 mol) 1- (2'-ethynylphenoxy) -2, 3-epoxypropane, obtained by reaction of 2-ethynylphenol with epichlorohydrin in dilute NaOH, are dissolved in 100 ml of methanol, whereupon 18 g (0 , 25 mol) tert. Butylamine can be added. It is left to stand at room temperature overnight, then heated to about 60 ° C. for 2 hours. After the solvent has been distilled off in vacuo, the residue that remains is dissolved in dilute HCl and filtered through activated charcoal. The clear aqueous solution is then made alkaline with NaOH. The basic components which precipitate are taken up in ether, the ethereal phase is dried over MgS04 and the ether is distilled off.
The remaining oily residue is dissolved in ethanol and the hydrochloride is precipitated by adding ethereal HCl. After the crystallizate has been isolated, it is recrystallized twice from ethanol with the addition of ether. M.p .: 172 to 174 C.
Example 2: 1- (2'-Ethynylphenoxy) -2-hydroxy-2-sec. butylaminopropane. HCl:
The crude 1- (2'-ethynylphenoxy) -2, 3-epoxypropane (13.8 g) obtained from 10.4 g (0.088 mol) of 2-ethynylphenol and 8.8 g (0.095 mol) of epichlorohydrin is used in 120 ml of ethanol with 22 g (0.3 mol) sec. Butylamine reacted by boiling for 2 hours. After the solvents have been distilled off in vacuo, the residue is stirred with dilute HCl, extracted with ether and the aqueous phase made alkaline with NaOH. The precipitated oily base is taken up in ether, washed with H 2 O, dried over MgSO 4 and the ether is distilled off. The solid residue is crystallized from ethyl acetate and petroleum ether.
The base is then dissolved in ethanol, acidified with ethereal HCl and the precipitated hydrochloride is isolated. Yield: 7.4 g, m.p .: 149 to 151 C.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19671618160 DE1618160C3 (en) | 1967-05-18 | 1967-05-18 | 1- (2-Ethynylphenoxy) -2-hydroxy-3alkylaminopropanes, their physiologically acceptable acid addition salts, processes for their preparation, and pharmaceuticals containing these compounds |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT297681B true AT297681B (en) | 1972-04-10 |
Family
ID=5682314
Family Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT479468A AT297681B (en) | 1967-05-18 | 1968-05-17 | Process for the preparation of new äthinyl-substituted 1-phenoxy-2-hydroxy-3-butylaminopropanes, their optically active isomers and acid addition salts |
| AT953970A AT297683B (en) | 1967-05-18 | 1968-05-17 | Process for the preparation of new äthinyl-substituted 1-phenoxy-2-hydroxy-3-alkylaminopropanes, their optically active isomers and acid addition salts |
| AT953870A AT297682B (en) | 1967-05-18 | 1968-05-17 | Process for the preparation of new äthinyl-substituted 1-phenoxy-2-hydroxy-3-alkylaminopropanes, their optically active isomers and acid addition salts |
| AT954070A AT297684B (en) | 1967-05-18 | 1968-05-17 | Process for the preparation of new äthinyl-substituted 1-phenoxy-2-hydroxy-3-alkylaminopropanes, their optically active isomers and acid addition salts |
Family Applications After (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT953970A AT297683B (en) | 1967-05-18 | 1968-05-17 | Process for the preparation of new äthinyl-substituted 1-phenoxy-2-hydroxy-3-alkylaminopropanes, their optically active isomers and acid addition salts |
| AT953870A AT297682B (en) | 1967-05-18 | 1968-05-17 | Process for the preparation of new äthinyl-substituted 1-phenoxy-2-hydroxy-3-alkylaminopropanes, their optically active isomers and acid addition salts |
| AT954070A AT297684B (en) | 1967-05-18 | 1968-05-17 | Process for the preparation of new äthinyl-substituted 1-phenoxy-2-hydroxy-3-alkylaminopropanes, their optically active isomers and acid addition salts |
Country Status (1)
| Country | Link |
|---|---|
| AT (4) | AT297681B (en) |
-
1968
- 1968-05-17 AT AT479468A patent/AT297681B/en active
- 1968-05-17 AT AT953970A patent/AT297683B/en active
- 1968-05-17 AT AT953870A patent/AT297682B/en active
- 1968-05-17 AT AT954070A patent/AT297684B/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| AT297682B (en) | 1972-04-10 |
| AT297683B (en) | 1972-04-10 |
| AT297684B (en) | 1972-04-10 |
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