PL111945B1 - Process for preparing novel n-substituted n-/2-/2-furyl/-ethyl/-2-propynylamines - Google Patents

Process for preparing novel n-substituted n-/2-/2-furyl/-ethyl/-2-propynylamines Download PDF

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PL111945B1
PL111945B1 PL1976216741A PL21674176A PL111945B1 PL 111945 B1 PL111945 B1 PL 111945B1 PL 1976216741 A PL1976216741 A PL 1976216741A PL 21674176 A PL21674176 A PL 21674176A PL 111945 B1 PL111945 B1 PL 111945B1
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furyl
ethyl
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substituted
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PL1976216741A
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    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D307/00Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
    • C07D307/02Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings
    • C07D307/34Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
    • C07D307/38Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with substituted hydrocarbon radicals attached to ring carbon atoms
    • C07D307/52Radicals substituted by nitrogen atoms not forming part of a nitro radical
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P25/00Drugs for disorders of the nervous system
    • A61P25/02Drugs for disorders of the nervous system for peripheral neuropathies
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P25/00Drugs for disorders of the nervous system
    • A61P25/24Antidepressants
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P25/00Drugs for disorders of the nervous system
    • A61P25/26Psychostimulants, e.g. nicotine, cocaine
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P37/00Drugs for immunological or allergic disorders
    • A61P37/02Immunomodulators
    • A61P37/06Immunosuppressants, e.g. drugs for graft rejection

Description

Przedmiotem wynalazku jest sposób wytwarzania no¬ wych N-podstawionych N- [2- (2-furylo)-2-propynyloamin o wzorze ogólnym 1, w którym R1 i R2 oznaczaja kazdora¬ zowo atom wodoru albo grupe C^-alkilowa i R3 oznacza grupe 2-propynylowa b*az ich soli i optycznie czynnych antypod.Zwiazki o wzorze ogólnym 1 sa nowe. Ich farmakolo¬ giczne dzialanie jest podobne do dzialania fenyloetyloamin opisanego w J. Pharmacol. 72, 265 (1941). Jednakze otrzymane sposobem wedlug wynalazku N-podstawione 2- (2-furyloetylo)-aminy o w orze ogólnym 1 nie wykazuja niepozadanego dzialania emfetaniny, ale hamuja w sposób nieoczekiwany selektywnie manoaminooksydaze. Tego rodzaju hamujace dzialanie zostalo juz stwierdzone dla kilku strukturalnie podobnych zwiazków otrzymanych sposobem wedlug wynalazku i opisane w Biochemical Pharmacoiogy 18, 1447 (1969); Br. J. Pharmacology 45, 490 (1972).Jednak opisane tam zwiazki hamuja glównie utlenianie 5-hydroksytryptaminy tylko- N-a-dwumetylo-N-/?-fenylo- etylo-N-propynyloamina stanowiaca przedmiot wczesniej-' szego patentu, a mianowicie brytyjskiego opisu patentowego nr 1031425, wykazuje podobne dzialanie hamujace na utle¬ nianie benzyloaminy, Br J. Pharmacology 45, 490 (1972).Nowe zwiazki o wzorze ogólnym 1 wykazuja bardzo ko¬ rzystne dzialanie farmakologiczne.Zwiazki o wzorze ogólnym 1, otrzymuje sie w ten spo¬ sób, ze ewentualnie racemiczne albo optycznie czynne zwiazki o wzorze ogólnym 2, w którym R1 i R2 maja wyzej podane znaczenie kondensuje sie z formaldehydem i ace- 10 15 20 25 30 tylenem, i ewentualnie rozdziela sie otrzymana mieszanine racemiczna na optyczne antypody i/albo otrzymane zwiazki o wzorze 1 przeprowadza w sól, albo z soli uwalnia.Zwiazki o wzorze ogólnym 2 poddaje sie reakcji z for¬ maldehydem i acetylenem w wysokowrzacycn eterach, jak eter butylowy albo dioksan, w obecnosci acetylenku miedziawego. Temperatura reakcji wynosi korzystnie 80—150°C. Reakcje mozna na przyklad prowadzic w ten sposób, ze 2-(2-furylo)-etyloamine o wzorze ogólnym 2 rozpuszcza sie w dioksanie, do tego roztworu dodaje sie acetylenek miedzowy albo zwiazek tworzacy acetylenek miedziowy; przy mieszaniu i ogrzewaniu przepuszcza sie przez mieszanine reakcyjna acetylenu. Wytworzony zwiazek o wzorze ogólnym 1 izoluje sie w zwykly sposób.Otrzymany produkt o wzorze ogólnym 1, bedacy trzecio¬ rzedowa zasada, gdy Jl2 oznacza grupe alkilowa, korzystnie mozna oczyscic przez acylowanie pozostalosci. Acyluja sie przy tym nieprzereagowane, drugorzedowe zasady, przez co sa nierozpuszczalne w rozcienczonych kwasach. Wy¬ tworzone trzeciorzedowe zasady mozna wtedy przez ekstrakcje rozcienczonymi kwasami izolowac w czystej postaci.Acylowanie mozna na przyklad prowadzic w podwyz¬ szonej temperaturze bezwodnikiem kwasu octowego albo chlorkiem benzoilu i lugiem. Acetylowana mieszanine reakcyjna ekstrahuje sie zimnym, rozcienczonym kwasem solnym, ekstrakt kwasu solnego alkalizuje sie, a trzecio¬ rzedowa zasade ekstrahuje sie rozpuszczalnikiem. Ekstrakt nastepnie zateza sie, pozostalosc destyluje, a' zasade 111 945111 945 3 ewentualnie przeprowadza sie w*organiczna albo nieorga¬ niczna sól.Zwiazki wytworzone sposobem wedlug wynalazku mozna przeprowadzic w sole z biologicznie korzystnymi albo obojetnymi kwasami, zwlaszcza w przypadkach, gdy oczyszczanie zwiazków nastepuje przez sole, z których nastepnie uwalnia sie je. Do tworzenia soli nadaja sie kwasy nieorganiczne, na przyklad kwas solny, siarkowy albo fosforowy i kwasy organiczne, na przyklad kwas maleinowy, mlekowy, cytrynowy, askrobinowy itd.Zwiazki te o wzorze ogólnym 1, w których R1 oznacza grupe alkilowa zawieraja chiralny atom wegla i sa optycznie czynne. Optycznie czynne izomery mozna otrzymywac przez rozdzial racemicznych zwiazków o wzorze ogólnym 1 na ich optyczne antypody, albo jesli wychodzi sie z optycznie czynnych zwiazków o wzorze ogólnym 2. Farmakologiczne dzialanie zwiazków o wzorze 1 przedstawiono ponizej.Utlenianie benzyloaminy w watrobie zostaje zahamowane o 79% na przyklad przy uzyciu N-metylo-N- [2- (furylo-2)e- tylo] -2-propyloaminy in vivo w dawce 6,25 mg/kg, podczas gdy przy takiej samej dawce hamowanie utleniania tyra- miny wynosi tylko 44%, N-metylo-N-[l-metylo-2-(2-fu- rylo)-etylo] -2-propynyloamina zastosowana w dawce 5 mg/kg hamuje utlenianie enzyloaminy w mózgu o 53%, a utlenianie 5-hydroksytryptaminy tylko o 2%. Uzyta w takiej samej dawce 1-N-metylo-N- [ (l-metylo-2-fenylo)- etylo] -2-propynyloamina w mózgu hamuje utlenianie benzyloaminy o 80%, a utlenianie 5-hydroksytryptaminy o 15% W przypadku dawki 10 mg/kg pochodna fenylowa hamuje utlenianie benzyloaminy w watrobie o 78% a 5- hydroksytryptarniny o 56%.Z powyzszych danych widac, ze przy hamowaniu mono- aminooksydazy pochodne furanowe wykazuja- bardziej selektywne dzialanie niz znane pochodne fenylowe. Przy badaniach in vitro selektywnosc jest jeszcze bardziej wyrazna. Równiez antagonistyczne reserpinowe dzialanie przeciwdepresyjne pochodnych furanowych jest silniejsze niz analogicznych zwiazków fenylowych. Pochodne fura¬ nowe wykazuja mniejsza toksycznosc niz odpowiednie pochodne fenylowe.Zwiazki wytwarzane sposobem wedlug wynalazku wzgle¬ dnie ich sole przerabia sie w znany sposób na preparaty lecznicze. W celu wytworzenia preparatów leczniczych nowe zwiazki miesza sie na przyklad z cieklymi albo stalymi rozcienczalnikami, nosnikami i substancjami pomocniczymi, jak srodkami smarujacymi, substancjami zapachowymi, 10 15 20 25 30 35 40 konserwujacymi itd. i w znany sposób nadaje im postac srodków leczniczych do bezposredniego stosowania z taka, jak tabletki, drazetki, kapsulki, mikrokapsulki, czopki, mieszanki w postaci proszków, wodne-suspencje, roztwory itd. Preparaty lecznicze stosuje sie glównie doustnie ipozajelitowo.Sposób wedlug wynalazku objasniaja ponizsze przyklady, nie ograniczajac jego zakresu.Przyklad I. Do roztworu 13,9 g (0,1 mola) N- metylo-N-[l-metylo-2-(furylo-2)-etylo]-aminy w 80 ml dioksanu dodaje sie 6 g paraformaldehydu i 1 g chlorku miedziawego. Nastepnie przy mieszaniu w ciagu 30 godzin wprowadza sie do roztworu acetylen, potem saczy i prze¬ sacz zateza. Pozostalosc rozpuszcza sie w benzenie, roztwór przemywa woda, suszy nad weglanem potasowym i zateza.Pozostalosc destyluje sie pod zmniejszonym cisnieniem i otrzymuje 6,8 g N-metylo- [l-metylo-2- (furylo-2 (-etylo] - 2-propynyloaminy o temperaturze wrzenia 114—116°C/ /2660 Pa n^: M910.Przyklad II. Wytworzona w sposób opisany w przy¬ kladzie I N-metylo-N- [l-metylo-2-(furylo-2)-etylo] -2-pro- pynyloamine poddaje sie reakcji z kwasem dwubenzoilo-D- winowym. Temperatura topnienia otrzymanej soli, po przekrystalizowaniu z chloroformu, wynosi 170—172 °C.Przyklad III. D- (+)-N-metylo- [l-metylo-2- (fu¬ rylo-2)] -etyloamine poddaje sie reakcji, w sposób oisany w przykladzie I, z bromkiem propargilowym. (-)-N-metylo- -N-[l- metylo-2- (furylo-2-)-etylo]-2-propynyloamine o- trzymuje sie z taka sama wydajnoscia. [a]2D = -l,2°° n2D°= 1,4892 ( + )-antypode wytwarza sie analogicznie + 1,2° r i20 [«1d n2D° = 1,4891 Zastrzezenie patentowe Sposób wytwarzania nowych N-podstawionych N- [2-(2- -furylo)-etylo] -2-propynyloamin o wzorze ogólnym 1, w którym R1 i R2 oznaczaja kazdorazowo atom wodoru albo grupe C1-C4-alkilowa i R3 oznacza grupe 2-propynylo- wa, oraz ich soli i optycznie czynnych antypodów, znamien¬ ny tym, ze ewentualnie racemiczne albo optycznie czynne zwiazki o wzorze ogólnym 2, w którym R1 i R2 maja wyzej podane znaczenie poddaje sie reakcji kondensacji z formal¬ dehydem i acetylenem i ewentualnie rozdziela sie otrzymana mieszanine racemiczna na optyczne antypody i/albo o- trzymane zwiazki o wzorze 1 przeprowadza w sól, albo z soliuwalnia.R1 R." Cl-U— CH — N — R" R< CWo—CW—NH WZdR 1 WZ0R 2 LDP Z-d 2 w Pab., Z. 883/1400/81, n. 90+20 egz.Cena 45 zl PLThe present invention relates to a process for the preparation of the new N-substituted N- [2- (2-furyl) -2-propynyl amines of the general formula I, in which R1 and R2 are each hydrogen or a C1-4alkyl group and R3 is 2-propynyl group b * z their salts and optically active antipodes The compounds of general formula I are new. Their pharmacological action is similar to that of the phenylethylamines described in J. Pharmacol. 72, 265 (1941). However, the N-substituted 2- (2-furylethyl) amines obtained according to the invention do not show the undesirable effect of emphetanine, but inhibit manoamine oxidase selectively in an unexpected way. Such an inhibitory effect has already been found for several structurally similar compounds according to the invention and is described in Biochemical Pharmacoiogy 18, 1447 (1969); Br. J. Pharmacology 45, 490 (1972). However, the compounds described therein mainly inhibit the oxidation of 5-hydroxytryptamine only - N-dimethyl-N - / β - phenyl-ethyl-N-propynylamine, which was the subject of an earlier patent, namely the British description of Patent No. 1031425, shows a similar inhibitory effect on the oxidation of benzylamine, Br J. Pharmacology 45, 490 (1972). The new compounds of the general formula 1 have a very favorable pharmacological action. The compounds of the general formula 1 are thus obtained It is possible that the optionally racemic or optically active compounds of the general formula 2, in which R1 and R2 have the meaning given above, are condensed with formaldehyde and acetylene, and the racemic mixture obtained is optionally separated into optical antipodes and / either the compounds of formula I obtained are salified or released from the salt. Compounds of formula II are reacted with formaldehyde and acetylene in high-boiling ethers such as butyl ether or dioxane in the presence of ac cuprous ethylene. The reaction temperature is preferably 80-150 ° C. For example, the reactions can be carried out by dissolving the 2- (2-furyl) -ethylamine of the general formula II in dioxane, adding copper acetylide or a compound forming cupric acetoxide to this solution; Pass through the acetylene reaction mixture with stirring and heating. The resulting compound of general formula I is isolated in the usual way. The resulting product of general formula I, which is a tertiary base when J12 is an alkyl group, can preferably be purified by acylation of the residue. Unreacted secondary bases are acylated and are therefore insoluble in dilute acids. The produced tertiary bases can then be isolated in pure form by extraction with dilute acids. The acylation can, for example, be carried out at elevated temperatures with acetic anhydride or benzoyl chloride and lye. The acetylated reaction mixture is extracted with cold dilute hydrochloric acid, the hydrochloric acid extract is made alkaline and the tertiary base is extracted with a solvent. The extract is then concentrated, the residue is distilled and the base is optionally converted to an organic or inorganic salt. The compounds of the invention can be converted into salts with biologically advantageous or inert acids, especially in cases where the purification of the compounds is it occurs through the salts, from which they are then released. Suitable for the salt formation are inorganic acids, for example hydrochloric, sulfuric or phosphoric acid, and organic acids, for example maleic acid, lactic acid, citric acid, ascorbic acid, etc. These compounds of general formula I in which R1 is an alkyl group contain a chiral carbon atom and they are optically active. Optically active isomers can be obtained by separating racemic compounds of general formula 1 into their optical antipodes, or starting from optically active compounds of general formula 2. The pharmacological action of compounds of formula 1 is shown below. Benzylamine oxidation in the liver is inhibited by 79% per example when using N-methyl-N- [2- (furyl-2) ethyl] -2-propylamine in vivo at a dose of 6.25 mg / kg, while at the same dose inhibition of tyramine oxidation is only 44 %, N-methyl-N- [1-methyl-2- (2-furyl) -ethyl] -2-propynylamine at a dose of 5 mg / kg inhibits the oxidation of enzylamine in the brain by 53%, and that of 5-hydroxytryptamine only by 2%. When used in the same dose, 1-N-methyl-N- [(1-methyl-2-phenyl) -ethyl] -2-propynylamine in the brain inhibits the oxidation of benzylamine by 80% and the oxidation of 5-hydroxytryptamine by 15%. 10 mg / kg the phenyl derivative inhibits the oxidation of benzylamine in the liver by 78% and the oxidation of 5-hydroxytryptamine by 56%. The above data shows that the inhibition of mono-amine oxidase furan derivatives shows a more selective action than the known phenyl derivatives. In in vitro studies, the selectivity is even more pronounced. The antagonistic reserpine antidepressant effect of furan derivatives is also stronger than that of the analogous phenyl compounds. The furun derivatives exhibit less toxicity than the corresponding phenyl derivatives. The compounds according to the invention or their salts are processed in a known manner into medicinal preparations. For the production of medicinal preparations, the new compounds are mixed with, for example, liquid or solid diluents, carriers and auxiliaries, such as lubricants, fragrances, preservatives, etc., and formulated in a known manner into pharmaceuticals for direct application. such as tablets, dragees, capsules, microcapsules, suppositories, powdered mixtures, aqueous suspensions, solutions, etc. Medicinal preparations are mainly used orally and parenterally. The following examples are illustrative of the method according to the invention, without limiting its scope. a solution of 13.9 g (0.1 mol) of N-methyl-N- [1-methyl-2- (furyl-2) ethyl] amine in 80 ml of dioxane, 6 g of paraformaldehyde and 1 g of cuprous chloride are added. The acetylene is then introduced into the solution with stirring for 30 hours, then filtered and the filtrate is concentrated. The residue is dissolved in benzene, the solution washed with water, dried over potassium carbonate and concentrated. The residue is distilled under reduced pressure to give 6.8 g of N-methyl- [1-methyl-2- (furyl-2 (-ethyl] -2) -2 -propinylamine, boiling point 114-116 ° C (2660 mbar): M910. Example 2 Prepared as described in Example 1 N-methyl-N- [1-methyl-2- (furyl-2) - ethyl] -2-propynylamine is reacted with dibenzoyl-D-tartaric acid The melting point of the salt obtained, after recrystallization from chloroform, is 170-172 ° C. Example III D- (+) - N-methyl- [ 1-methyl-2- (furyl-2)] -ethylamine is reacted in the manner described in Example 1 with propargyl bromide. (-) - N-methyl-N- [1-methyl-2- ( furylo-2 -) - ethyl] -2-propynylamine produces the same efficiency. [a] 2D = -1.2 °° n2D ° = 1.4892 (+) -antipode is prepared analogously + 1.2 ° r i20 [«1d n2D ° = 1.4891 Patent claim Method for the preparation of new N-substituted N- [2- (2-furyl) -eth l] -2-propynyl amines of the general formula I, in which R1 and R2 are each hydrogen or a C1-C4 alkyl group and R3 is a 2-propynyl group, and their salts and optically active antipodes, characterized by with optionally racemic or optically active compounds of general formula II, in which R1 and R2 have the above meanings, are subjected to a condensation reaction with formaldehyde and acetylene, and optionally the racemic mixture obtained is separated into optical antipodes and / or compounds of formula II. 1 converts into salt, or with salt. R1 R. "Cl-U— CH - N - R" R <CWo — CW — NH WZdR 1 WZ0R 2 LDP Zd 2 in Pab., Z. 883/1400/81, n 90 + 20 copies Price PLN 45 PL

Claims (2)

Zastrzezenie patentowe 1. Sposób wytwarzania nowych N-podstawionych N- [2-(2- -furylo)-etylo] -2-propynyloamin o wzorze ogólnym 1, w którym R1 i R2 oznaczaja kazdorazowo atom wodoru albo grupe C1-C4-alkilowa i R3 oznacza grupeClaim 1. A method for the preparation of the new N-substituted N- [2- (2-furyl) ethyl] -2-propynylamines of the general formula 1, wherein R1 and R2 are each hydrogen or a C1-C4-alkyl group and R3 is a group 2. -propynylo- wa, oraz ich soli i optycznie czynnych antypodów, znamien¬ ny tym, ze ewentualnie racemiczne albo optycznie czynne zwiazki o wzorze ogólnym 2, w którym R1 i R2 maja wyzej podane znaczenie poddaje sie reakcji kondensacji z formal¬ dehydem i acetylenem i ewentualnie rozdziela sie otrzymana mieszanine racemiczna na optyczne antypody i/albo o- trzymane zwiazki o wzorze 1 przeprowadza w sól, albo z soliuwalnia. R1 R." Cl-U— CH — N — R" R< CWo—CW—NH WZdR 1 WZ0R 2 LDP Z-d 2 w Pab., Z. 883/1400/81, n. 90+20 egz. Cena 45 zl PL2.-propynyl, and their salts and optically active antipodes, characterized in that optionally racemic or optically active compounds of the general formula II, in which R1 and R2 have the above-mentioned meanings are subjected to a condensation reaction with formaldehyde and acetylene and, optionally, the resulting racemic mixture is separated into optical antipodes and / or the compounds of formula I obtained are salified or salted. R1 R. "Cl-U— CH - N - R" R <CWo — CW — NH WZdR 1 WZ0R 2 LDP Zd 2 in Pab., Z. 883/1400/81, n. 90 + 20 copies. Price PLN 45 PL
PL1976216741A 1975-12-29 1976-12-29 Process for preparing novel n-substituted n-/2-/2-furyl/-ethyl/-2-propynylamines PL111945B1 (en)

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PL1976194802A PL112123B1 (en) 1975-12-29 1976-12-29 Preparation of novel n-substituted n-2-/2-phenylethyl/-amines
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PL113903B1 (en) 1981-01-31
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CS216167B2 (en) 1982-10-29
FR2336928B1 (en) 1980-04-25
CH633285A5 (en) 1982-11-30
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EG12514A (en) 1981-06-30
AR217703A1 (en) 1980-04-15
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SE7614473L (en) 1977-06-30
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IL51145A (en) 1981-02-27
BE849892A (en) 1977-04-15
IN145292B (en) 1978-09-23
ES454581A1 (en) 1977-12-16
CS216166B2 (en) 1982-10-29
FR2336928A1 (en) 1977-07-29
ATA957376A (en) 1980-08-15
AR215610A1 (en) 1979-10-31
SU795473A3 (en) 1981-01-07
DE2658064C2 (en) 1987-09-10
YU314576A (en) 1982-10-31
CH633284A5 (en) 1982-11-30
NL7614474A (en) 1977-07-01
SU847918A3 (en) 1981-07-15
YU148982A (en) 1982-10-31
FI63227B (en) 1983-01-31
SE429654B (en) 1983-09-19

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