DK147706B - Analogifremgangsmaade til fremstilling af cycliske aminocarboxylsyrer eller farmakologisk acceptable salte deraf - Google Patents
Analogifremgangsmaade til fremstilling af cycliske aminocarboxylsyrer eller farmakologisk acceptable salte deraf Download PDFInfo
- Publication number
- DK147706B DK147706B DK581475AA DK581475A DK147706B DK 147706 B DK147706 B DK 147706B DK 581475A A DK581475A A DK 581475AA DK 581475 A DK581475 A DK 581475A DK 147706 B DK147706 B DK 147706B
- Authority
- DK
- Denmark
- Prior art keywords
- acid
- aminomethyl
- acetic acid
- solution
- cyclohexane
- Prior art date
Links
- 150000003839 salts Chemical class 0.000 title description 10
- 239000002253 acid Substances 0.000 title description 7
- 238000000034 method Methods 0.000 title description 7
- 238000002360 preparation method Methods 0.000 title description 5
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- 230000000144 pharmacologic effect Effects 0.000 title 1
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- 229910052739 hydrogen Inorganic materials 0.000 description 30
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- 229910052757 nitrogen Inorganic materials 0.000 description 29
- 239000000243 solution Substances 0.000 description 28
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- 229940093915 gynecological organic acid Drugs 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- BRWIZMBXBAOCCF-UHFFFAOYSA-N hydrazinecarbothioamide Chemical compound NNC(N)=S BRWIZMBXBAOCCF-UHFFFAOYSA-N 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 230000002631 hypothermal effect Effects 0.000 description 1
- 239000003456 ion exchange resin Substances 0.000 description 1
- 229920003303 ion-exchange polymer Polymers 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 239000004310 lactic acid Substances 0.000 description 1
- 235000014655 lactic acid Nutrition 0.000 description 1
- 239000008101 lactose Substances 0.000 description 1
- 230000003902 lesion Effects 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 235000019359 magnesium stearate Nutrition 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
- 239000001630 malic acid Substances 0.000 description 1
- 235000011090 malic acid Nutrition 0.000 description 1
- 239000000594 mannitol Substances 0.000 description 1
- 235000010355 mannitol Nutrition 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- JHYKOXJKJHTKTE-UHFFFAOYSA-N methyl 3-pyrrolidin-1-ylpropanoate Chemical compound COC(=O)CCN1CCCC1 JHYKOXJKJHTKTE-UHFFFAOYSA-N 0.000 description 1
- 229920000609 methyl cellulose Polymers 0.000 description 1
- 239000001923 methylcellulose Substances 0.000 description 1
- 235000010981 methylcellulose Nutrition 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- 230000020477 pH reduction Effects 0.000 description 1
- FJKROLUGYXJWQN-UHFFFAOYSA-N papa-hydroxy-benzoic acid Natural products OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 description 1
- 229960005152 pentetrazol Drugs 0.000 description 1
- 230000003285 pharmacodynamic effect Effects 0.000 description 1
- 235000011007 phosphoric acid Nutrition 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 150000003141 primary amines Chemical class 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- SSOLNOMRVKKSON-UHFFFAOYSA-N proguanil Chemical compound CC(C)\N=C(/N)N=C(N)NC1=CC=C(Cl)C=C1 SSOLNOMRVKKSON-UHFFFAOYSA-N 0.000 description 1
- 229960004889 salicylic acid Drugs 0.000 description 1
- 230000001624 sedative effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 210000003625 skull Anatomy 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- QDRKDTQENPPHOJ-UHFFFAOYSA-N sodium ethoxide Chemical compound [Na+].CC[O-] QDRKDTQENPPHOJ-UHFFFAOYSA-N 0.000 description 1
- CRWJEUDFKNYSBX-UHFFFAOYSA-N sodium;hypobromite Chemical compound [Na+].Br[O-] CRWJEUDFKNYSBX-UHFFFAOYSA-N 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 238000010254 subcutaneous injection Methods 0.000 description 1
- 239000007929 subcutaneous injection Substances 0.000 description 1
- 239000001384 succinic acid Substances 0.000 description 1
- 239000003765 sweetening agent Substances 0.000 description 1
- 206010042772 syncope Diseases 0.000 description 1
- 239000006188 syrup Substances 0.000 description 1
- 235000020357 syrup Nutrition 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 235000012222 talc Nutrition 0.000 description 1
- 229940095064 tartrate Drugs 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- QEMXHQIAXOOASZ-UHFFFAOYSA-N tetramethylammonium Chemical compound C[N+](C)(C)C QEMXHQIAXOOASZ-UHFFFAOYSA-N 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 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
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 150000003673 urethanes Chemical class 0.000 description 1
- MSRILKIQRXUYCT-UHFFFAOYSA-M valproate semisodium Chemical compound [Na+].CCCC(C(O)=O)CCC.CCCC(C([O-])=O)CCC MSRILKIQRXUYCT-UHFFFAOYSA-M 0.000 description 1
- 229960000604 valproic acid Drugs 0.000 description 1
- 235000019871 vegetable fat Nutrition 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D205/00—Heterocyclic compounds containing four-membered rings with one nitrogen atom as the only ring hetero atom
- C07D205/02—Heterocyclic compounds containing four-membered rings with one nitrogen atom as the only ring hetero atom not condensed with other rings
- C07D205/06—Heterocyclic compounds containing four-membered rings with one nitrogen atom as the only ring hetero atom not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member
- C07D205/08—Heterocyclic compounds containing four-membered rings with one nitrogen atom as the only ring hetero atom not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member with one oxygen atom directly attached in position 2, e.g. beta-lactams
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P25/00—Drugs for disorders of the nervous system
- A61P25/08—Antiepileptics; Anticonvulsants
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P25/00—Drugs for disorders of the nervous system
- A61P25/20—Hypnotics; Sedatives
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- Neurology (AREA)
- Neurosurgery (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Veterinary Medicine (AREA)
- Pharmacology & Pharmacy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Biomedical Technology (AREA)
- Public Health (AREA)
- Pain & Pain Management (AREA)
- Anesthesiology (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
Description
147706
Den foreliggende opfindelse angår en analogifremgangs-måde til fremstilling af hidtil ukendte, cycliske aminocarbox-ylsyrer med den nedenfor angivne formel (I).
Det har vist sig, at cycliske aminocarboxylsyrer med den almene formel H,N - CH. - C - CH, - COOR1 2 2 ( λ 2 (I) (CH2>n hvor R1 betyder et hydrogenatom eller en alkylgruppe med 1-8 car-bonatomer, og n er 4, 5 eller 6, samt de farmakologisk acceptable salte deraf har værdifulde farmakodynamiske egenskaber.
Alkylgrupper under definitionen af er ligekædede eller forgrenede alkylgrupper, som fortrinsvis indeholder 1-4 car-bonatomer, især methyl-r!, ethyl-, isopropyl- og tert.butylgrupper.
2 147706
Forbindelserne med den almene formel (I) har hypotermiske og i visse tilfælde narkose-forstærkende eller beroligende egenskaber. De er også karakteristiske ved en yderst lav toksicitet. Ved dyreforsøg er der overraskende også blevet konstateret en bemærkelsesværdig beskyttende virkning mod krampe, der er fremkaldt af thiosemicarbazid. Nogle af de her omhandlede forbindelser har også en betydelig beskyttende virkning mod cardiazol-krampe. Disse hidtil ukendte forbindelser (I) kan således anvendes til terapi af visse hjernesygdomme, de kan f.eks. anvendes til behandling af visse former for epilepsi, besvimelsesanfald, hypokinesis og kranielæsioner. De bevirker også en forbedring af hjernefunktionerne.
I overensstemmelse hermed er de også særlig nyttige til behandling af geriatriske patienter.
Den her omhafidlede analogifremgangsmåde til fremstilling af forbindelserne med den almene formel (I) er ejendommeliq ved, at a) forbindelser med den almene formel HOOC - CH0 - C - CH0 - COOR2 2 / Λ 2 di) (CH2>n 2 hvor R betyder en alkylgruppe med op til 8 carbonatomer, og n har den ovenfor angivne betydning, omdannes via et reaktivt syrederivat deraf til et azid, der dernæst underkastes Curtius-omlejringen, eller b) forbindelser med den almene formel
H0N - OC - CH~ - C - CH~ - COOH
2 2 r λ 2 (ud (CH2>„ hvor n har den ovenfor angivne betydning, underkastes Hofmann-om-lejringen, eller c) forbindelser med den almene formel
H
\
N - OC - CH0 - C - CH9 - COOH
H0/ 2^\ 2 (I« <CB2>„ hvor n har den ovenfor angivne betydning, underkastes Lossen--omlejringen, 3 147706 hvorefter de dannede forbindelser, hvor R"^ betyder hydrogen, eventuelt omdannes til C^_g-alkylestere deraf, og/eller forbin- ·.. delserne eventuelt omdannes til farmakologisk acceptable salte deraf ved omsætning med en syre eller en base.
Eftersom aminosyrer er amfotere, kan farmakologisk acceptable salte, når R"*- betyder et hydrogenatom, være salte af hensigtsmæssige uorganiske og organiske syrer, f.eks. saltsyre, svovlsyre, phosphorsyre, eddikesyre, oxalsyre, mælkesyre, citronsyre, æblesyre, salicylsyre, malonsyre, maleinsyre, ravsyre eller ascor-binsyre, men også salte med alkalimetaller eller jordalkalimetal-ler, f.eks. natrium, kalium, magnesium eller calcium, der fremstilles ved omsætning med de tilsvarende hydroxider eller carbona-ter. Salte med kvatemære ammoniumioner, f.eks. tetramethylammonium-ionen, kan også fremstilles. Når R^ betyder en C^_g-alkylgruppe, er det selvfølgeligt kun muligt at danne salte med syrer.
Reaktionen af forbindelserne med den almene formel (II) finder sted i overensstemmelse med den velkendte Curtius-omlejring.
Den frie carboxylgruppe aktiveres først ved omdannelse til et reaktivt derivat, f.eks. et syrehalogenid eller et blandet anhydrid, og omsættes dernæst med et hensigtsmæssigt azid, f.eks. natrium-azid. Det på denne måde fremkomne syreazid underkastes dernæst termisk sønderdeling i et organisk opløsningsmiddel, f.eks. benzen eller toluen, eller en alkohol, såsom ethanol, hvorunder dér fraspaltes nitrogen, og der finder en intramolekylær omlejring sted til et isocyanat eller, i nærværelse af en alkohol, til en urethan. Isocyanaterne og urethanerne kan let omdannes til de ønskede primære aminer ved base- eller syrehydrolyse.
Den velkendte Hofmann-omlejring af forbindelser med den almene formel (III) finder også sted via isocyanater. I dette tilfælde omsættes syreamiderne med alkalinetalhypohalogeniter. Efter hydrolyse af det isocyanat, der dannes ved anionotrop omlejring, dannes den ønskede amin sammen med carbondioxid.
Lossen-omlejringen af hydroxamsyrer med den almene formel (IV) følger også en lignende bane. I dette tilfælde fraspaltes vand formelt, hvorved der først dannes det tilsvarende isocyanat, hvis hydrolyse giver den ønskede amin. Almindeligvis omsættes hy-droxamsyrerne med baser via deres O-acylderivater, såsom O-acetyl-, O-benzoyl- og fortrinsvis O-sulfonylderivater.
4 147706
Hvis R^ skal betyde en lavere alkyl gruppe, esterifice-res carboxylgruppen i de fremkomne aminosyrer ved kendte fremgangsmåder. Mest simpelt kan reaktionen gennemføres ved, at en fri aminosyre med den almene formel (I) eller et salt deraf opløses i et overskud af den alkohol, der virker som esterificeringskomponenten, hvorpå opløsningen mættes med hydrogenchlorid. Det tilsvarende aminosyreesterhydrochlorid fås således direkte. Hvis det er ønskeligt at arbejde uden et overskud af alkohol, er det muligt at anvende de esterificeringsmetoder, der er kendt fra aminosyrekemien, idet aminogruppen maskeres.
De forbindelser med den almene formel (II), der anvendes som udgangsmaterialer ved fremgangsmåde a), kan fremstilles ved omsætning af 1 mol af et syreanhydrid med den almene formel o = c ^ x c = o I I (v) n2C CH2 / λ (CH2>n hvor n har den ovenfor angivne betydning, med 1 mol af en alkohol med den almene formel HO - R2 (VI) 2 hvor R har den ovenfor angivne betydning.
Forbindelserne med den almene formel (V) er kendte Ijvf.
J.C.S., 115, 586/1919; Soc., 99, 446; J.C.S., 117, 639/1920].
Nogle af forbindelserne med den almene formel (III) samt fremgangsmåder til deres fremstilling er kendte [jvf. Austral. J.C., 13, 127/1960] og kan f.eks. fremstilles ved omsætning af en forbindelse med den almene formel (V) med ammoniak. I dette tilfælde er det fordelagtigt at arbejde ved den lavest mulige temperatur. Det er imidlertid også muligt først at fremstille en halvester, dernæst omsætte den frie carboxylsyregruppe med f.eks. ethylchlorformiat og derefter gennemføre en omsætning med ammoniak.
Hydroxamsyrerne med den almene formel (IV) kan fremstilles ved omsætning af anhydridet med den almene formel (V) med hydroxylamin.
147706 5 På grund af deres lave toksicitet kan de her omhandlede forbindelser med den almene formel (I) indgives enteralt eller parenteralt i flydende eller fast form inden for vide doseringsområder. Som injektionsopløsning anvendes fortrinsvis vand, der indeholder de sædvanlige additiver til injektionsopløsninger, såsom stabiliserende midler, opløseliggørende midler og/eller puffermidler.
Additiver af denne type indbefatter f.eks. tartrat- og citratpuffere, ethanol, kompleksdannende midler (såsom ethylen-diamin-tetraeddikesyre og de ikke-toksiske salte deraf) samt polymere med høj molekylvægt (såsom flydende polyethylenoxid) til viskositetsregulering. Faste bærematerialer indbefatter f.eks. stivelse, lactose, mannitol, methylcellulose, talkum, højdisperse kiåelsyrer, fedtsyrer med høj molekylvægt (såsom stearinsyre), gelatine, agar-agar, calciumphosphat, magnesiumstearat, animalsk' og vegetabilsk fedt og faste polymere med høj molekylvægt (såsom polyethylenglycol). Midler, der er egnede til oral indgift, kan om ønsket også indeholde smags- og/eller sødestoffer.
Den individuelle dosering for de her omhandlede forbindelser kan være 5 - 50 mg parenteralt og 20 - 200 mg enteralt.
Nedenstående eksempler tjener til illustrering af den foreliggende opfindelse.
Eksempel 1 1-Aminomethyl-l-cyclohexan-eddikesyre 5,6 ml triethylamin i 16 ml vandfri acetone sættes dråbe-vis under omrøring og afkøling til 0°C til en opløsning af 7,28 g mo- nomethyl-l,l-cyclohexan-dieddikesyreacetat, hvorefter der tilsættes en opløsning af 3,6 ml ethylchlorformiat i 16 ml vandfri acetone. Reaktionsblandingen omrøres i yderligere 30 minutter ved 0°C, og dernæst tilsættes dråbevis en opløsning af 3,4 g natriumazid i 12 ml vand. Reaktionsblandingen omrøres i 1 time ved 0°C, hældes dernæst 6 147706 ud på isvand og ekstraheres tre gange med mængder på 50 ml iskoldt toluen. De kombinerede ekstrakter tørres over vandfrit, natriumsulfat ved 0°C og ledes derpå dråbevis til en kolbe, der er forvarmet til 100°C. Blandingen opvarmes dernæst i yderligere 1 time under tilbagesvaling og inddampes derefter i vakuum. Det rå methyl-l-isocyanatoinethyl-l-cyclohexan-acefcat, der bliver tilbage, opvarmes under tilbagesvaling i 3 timer med 50 ml 20% saltsyre. Efter afkøling af opløsningen ekstraheres denne tre gange med mængder på 100 ml chloroform til fjernelse af den 1-amino-methyl-l-cyclohexan-eddikesyre-lactam, der dannes som biprodukt, og den vandige saltsyreopløsning inddampes i vakuum, hvorved 1-amino-methyl-l-cyclohexan-eddikesyren krystalliserer som hydrochloridet. Smp.: 117-118°C efter omkrystallisation fra en blanding af acetone, methanol og ether. Efter omkrystallisation fra en blanding af methanol og ether er produktets smeltepunkt 129-133°C.
Analyse;
CgH18ClNO2,0,25 H20
Ber.: C = 50,94%, H = 8,79%, Cl = 16,70%, N - 6,60%.
Fund.; C = 51,03%, H = 8,56%, Cl = 16,34%, N = 6,84%.
Ved behandling med en basisk ionbytter og krystallisation fra en blanding af ethanol og ether fås ren 1-aminomethyl-l--cyclohexan-eddikesyre. Smp.; 162-166°C.
Analyse; C9H17N02
Ber.; C = 63,13%, H = 10,01%, N = 8,18%, O = 18,69%.
Fund.; C = 63,20%, H = 9,61%, N = 7,95%, O = 19,02%.
Det monomethyl-l,l-cyclohexan-dieddikesyreacetat, der anvendes som udgangsmateriale, fremstilles på nedenstående måde; 32,8 g 1,1-cyclohexan-dieddikesyreanhydrid blandes med 7 g vandfri methanol og opvarmes under tilbagesvaling i 1 time.
Efter inddampning åf reaktionsblandingen i vakuum bliver 37,5 g monomethyl-l,l-cyclohexan-dieddikesyreacetat tilbage i form af en gullig olie.
Eksempel 2
Ethyl-l-aminomethyl-l-cyclohexan-acetat 10 g af den ifølge eksempel 1 fremstillede 1-aminomethyl--1-cyclohexan-eddikesyre opløses i 50 ml vandfri ethanol og mættes 7 147706 ved 0°C med gasformigt hydrogenchlorid. Reaktionsblandingen får lov at henstå natten over ved stuetemperatur, inddampes dernæst i vakuum, og remanensen omkrystalliseres fra en blanding af ethanol og ether. Der fås ethyl-l-aminomethyl-l-cyclohexan-acetat i form af dets hydrochlorid. Smp.: 161-163°C.
Analyse: C11H22C^N02
Ber.: C = 56,04%, H = 9,41%, N = 5,94%.
Fund.: C = 55,93%, H = 9,28%, N = 5,94%.
Eksempel 3 1-Aminomethyl-1-cycloheptan-eddikesyre 15,9 g monomethyl-1,1-cycloheptan-diedd^kesyEe^ceta^ opløses i 100 ml vandfri acetone og blandes på analog jijåde med den i eksempel 1 beskrevne først med 8,1 g triethylamin i 30 ml acetone, derpå med 9,8 g ethylchlorformiat i 30 ml vandfri acetone og til slut med 6,5 g natriumazid i 20 ml vand. Efter at reaktionen har fundet sted, ekstraheres reaktionsblandingen som angivet i eksempel 1, og den fremkomne opløsning af monomethyl-1,l-cycloheptan-died-dikesyreacetat-azid omlejres i toluen til isocyanatet. Det fremkomne methyl-l-isocyanatomethyl-l-cycloheptan-acetat koges i 3 timer under tilbagesvaling i 20% saltsyre. Efter inddampning i vakuum udskiller 1-aminomethyl-l-cycloheptan-eddikesyre i form af sit hydrochlorid, der omkrystalliseres fra en blanding af methanol, acetone og ethylacetat. Smp.: 69-72°C.
Analyse: C10H20C1NO2' 0,25 H2°
Ber.: C = 53,12%, H = 9,13%, Cl = 15,68%, N = 6,19%, 0 - 15,88%. Fund.: C = 53,29%, H = 9,03%, Cl = 15,73%, N 6,16%, N = 15,77%.
Det monomethyl-1,1-cycloheptan-dieddikesyreacetat, der anvendes som udgangsmateriale, fremstilles på nedenstående måde: 13,7 g 1,1-cycloheptan-dieddikesyreanhydrid blandes med 2,36 g vandfri methanol i 10 ml benzen og koges vinder tilbagesvaling i 2 timer. Efter inddampning fås 15,9 g monomethyl-l,l-cyclo-heptan-dieddikesyreacetat, der anvendes direkte.
8 147706
Eksempel 4 1-Aminomethyl-l-cyolopentan-eddikesyre
Variant A
17 g 1,1-cyclopentan-dieddikesyre-monoamid opløses i 15 ml vand sammen med 4 g natriumhydroxid. Den fremkomne opløsning sættes dråbevis ved -10°C under omrøring til en opløsning af natriumhypo-bromit, der er fremstillet ved dråbevis tilsætning af 19 g brom til en opløsning af 24 g natriumhydroxid i 250 ml vand ved -10°C. Reaktionsblandingen får lov at opvarmes til stuetemperatur under omrøring og opvarmes dernæst til 60°C i 2 timer.
Efter syrning med 12 N saltsyre ekstraheres reaktionsblandingen tre gange med mængder på 150 ml methylenchlorid, og den vandige fase inddampes i vakuum. Det rå 1-aminomethyl-l-cyclopentan--eddikesyre-hydrochlorid fås ved digerering af remanensen med ethanol og inddampning af den ethanoliske opløsning. Det omdannes til den frie aminosyre ved at blive ledet over en ionbytter i OH--formen. Efter afdrivning af opløsningsmidlet og omkrystallisation af remanensen fra en blanding af ethanol og ether fås ren 1-amino-methyl-l-cyclopentan-eddikesyre. Smp.: 171-172°C.
Analyse i C8H15N02
Ber.: C = 61,12%, H = 9,62%, N = 8,91%, O = 20,25%.
Pund.: C = 60,78%, H = 9,37%, N = 8,93%, 0 = 19,96%.
Det 1,1-cyclopentan-dieddikesyreamid, der anvendes som udgangsmateriale, fremstilles på nedenstående måde: 30 g 1,1-cyclopentan-dieddikesyreanhydrid blandes under afkøling med 60 ml af en 20%*s vandig opløsning af ammoniak. Efter at reaktionen har fundet sted, fjernes overskud af ammoniak i vakuum, og opløsningen syrnes med saltsyre og ekstraheres dernæst med methylenchlorid. Dernæst afdrives opløsningsmidlet. Det på denne måde fremkomne 1,1-cyclopentan-dieddikesyre-monoamid kan anvendes direkte.
Variant B
5,88 g 1,l-cyclopentan-dieddikesyreanhydrid ledes under afkøling med isvand til en ethanolisk opløsning af hydroxylamin, der er fremstillet ud fra 2,5 g hydroxylamin-råt benzensulfat og den ækvivalente mængde natriumethylat i 15 ml vandfri ethanol med på- 9 T47706 følgende filtrering. Reaktionsblandingen omrøres i yderligere 1 time ved stuetemperatur, opløsningen inddampes i vakuum, og den rå hydroxamsyre tages op i 37 ml 10%'s vandig natriumcarbonatopløs-ning. Under afkøling tilsættes 4,5 ml benzensulfochlorid dråbevis. Reaktionsblandingen afkøles yderligere i 1 time ved 25°C, blandes med 14 ml af en 10%'s vandig opløsning af natriumhydroxid, og dernæst opvarmes reaktionsblandingen til 100°C i 45 minutter. Efter afkøling syrnes opløsningen med koncentreret saltsyre og inddampes dernæst til tørhed i vakuum. Remanensen behandles med ethanol, filtreres, og den ethanoliske opløsning koncentreres noget. Derved udkrystalliserer 1-aminomethyl-l-cyclopentan-eddikesyre som sit benzensulfonat, der på den i ovenstående variant A beskrevne måde omdannes til den frie aminosyre , smp. 171-172°C, ved hjælp af en ionbytter.
Eksempel 5
Natriumsalt af 1-aminomethyl-l-cyclohexan-eddikesyre
En vandig opløsning af 1-aminomethyl-l-cyclohexan-eddike-syre (eksempel 1) blandes med en ækvimolær mængde af en 1 N opløsning af natriumhydroxid. Dernæst inddampes opløsningen i vakuum, indtil krystallisationen begynder. Efter tilsætning af isopropanol frafiltreres det fremkomne bundfald, og det tørres. Natriumsaltet af 1-aminomethyl-l-cyclohexan-eddikesyre begynder at sintre ved ca. 150°C og har et smeltepunkt på 238°C.
Analyse: C9H16N02Na, 1/2 H20
Ber.: C = 53,46%, H = 8,47%.
Fundet: C = 53,48%, H = 8,28%.
På samme måde opnås calciumsaltet ved omsætning af en molær vandig opløsning af calciumhydroxidet med en opløsning af 1-aminomethyl-l-cyclohexan-eddikesyre. Calciumsaltet sintrer ved 195°C og har smp. 200°C (sønderdeling).
Det analoge ammoniumsalt fremstilles ved omsætning af en ethanolisk opløsning af 1-aminomethyl-l-cyclohexan-eddikesyre med ammoniak. Efter inddampning i vakuum krystalliseres remanensen fra en blanding af methanol og ether. Det på denne måde fremkomne ammoniumsalt af 1-aminomethyl-l-cyclohexan-eddikesyre har et smeltepunkt på 145-150°C.
ίο 147706
Eksempel 6
Methyl-1-aminomethyl-l-cyclohexan-acetat På analog måde med den i eksempel 2 beskrevne omsættes 1-aminomethyl-l-cyclohexan-eddikesyre-hydrochlorid med methanol i nærværelse af hydrogenchlorid. Efter inddampning i vakuum omkrystalliseres remanensen fra en blanding af methanol og ether til dannelse af rent methyl-l-aminomethyl-l-cyclohexan-acetat.
Smp.; 150-152°C (hydrochlorid).
Analyse: C10H20C1NO2' Χ/4 H2°
Ber.: C = 53,15%, H = 9,13%, Cl = 15,69%, N = 6,20%.
Pund.: C = 53,26%, H = 8,68%. Cl = 15,39%, N = 6,23%.
Eksempel 7 n-Butyl-l-aminomethyl-l-cyclohexan-acetat
En opløsning af 1-aminomethyl-l-cyclohexan-eddikesyre-hydrochlorid i n-butanol mættes, med hydrogenchlorid ved 0°C. Reaktionsblandingen opvarmes dernæst til 110°C i 2 timer, medens hydrogenchlorid ledes igennem. Den på denne måde fremkomne opløsning inddampes dernæst ved 60°C, og remanensen røres op med hexan, filtreres og tørres. Der opnås n-butyl-l-aminomethyl-l-cyclo-hexan-acetat-hydrochlorid i form af et hvidt pulver med et smp. på 106-109°C.
Analyse: C13H26C1N02' V4 H2°
Ber.: C = 58,20%, H = 9,96%, Cl - 13,21%, N = 5,22%.
Fund.: C - 58,21%, H = 9,69%, Cl = 13,45%, N = 5,36%.
Eksempel 8
Natriumsalt af 1-aminomethyl-l-cycloheptan-eddikesyre 1-Aminomethyl-l-cycloheptan-eddikesyre fremstilles ud fra hydrochloridet fra eksempel 3 ved, at en vandig opløsning ledes gennem en basisk ionbytterhapiks i OH-formen. Opløsningen af den frie aminosyre inddampes i vakuum, og den fremkomne 1-aminomethyl-l- 11 147706 -cycloheptan-eddikesyre omkrystalliseres fra ethanol. Snip.: 180°C.
Analyse: C10H19NO2
Ber.: C = 64,83%, H = 10,34%, N = 7,56%.
Fund.: C = 64,55%, H = 10,32%, N = 7,35%.
På den i eksempel 5 angivne måde omsættes den frie aminosyre med en 1 M vandig opløsning af natriumhydroxid til dannelse af natriumsaltet af 1-aminomethyl-l-cycloheptan-eddikesyre, der efter omkrystallisation fra en blanding af methanol og isopropanol sintrer over 140°C under langsom sønderdeling.
Det tilsvarende calciumsalt krystalliserer i form af små farveløse plader fra en blanding af vand og acetone. Calciumsaltet af 1-aminomethyl-l-cycloheptan-eddikesyren sintrer ved en temperatur på over 180°C uden tegn på smeltning.
Eksempel 9
Methyl-l-aminomethyl-l-cycloheptan-acetat På analog måde med den i eksempel 2 beskrevne esterifi-ceres 1-aminomethyl-l-cycloheptan-eddikesyre-hydrochlårid med methanol i nærværelse af hydrogenchlorid.
Efter oparbejdning og krystallisation fra en blanding af isopropanol, ether og hexan fås methyl-l-aminomethyl-l-cyclo-heptan-acetat som hydrochlorid i form af farveløse krystaller med smp.: 115-116°C.
Analyse: cllH22C1N02
Ber.: C = 56,04%, H = 9,41%, Cl = 15,04%, N = 5,94%.
Fund.: C = 55,70%, H = 9,24%, Cl = 14,94%, N - 6,05%.
Eksempel 10 n-Butyl-l-aminomethyl-l-cycloheptan-acetat, toluensulfonat På analog måde med den i eksempel 7 beskrevne esterifi-ceres 1-aminomethyl-l-cycloheptan-eddikesyre-hydrochlorid med n-but- . anol i nærværelse af hydrogenchlorid til dannelse af n-butyl-l-amino-methyl-l-cycloheptan-acetat-hydrochlorid i form af en sirup, der blandes med benzen og en ækvivalent mængde p-toluensulfonsyre.
12 147706
Blandingen inddampes til tørhed i vakuum. Efter krystallisation fra en blanding af chloroform, ether og hexan fås n-bu tyl-1-amino-methyl-l-cycloheptan-acetat, p-toluensulfonat. Smp.: 116-118°C.
Analyse:
C21H35N05S
Ber.: C = 60,99%, H = 8,53%, N = 3,39%.
Fundets C » 60,97%, H - 8,68%, N = 3,91%.
Eksempel 11 l-Aminomethyl-1-cyclopentan-eddikesyre, benzensulfonat På den i eksempel 1 angivne måde underkastes monomethyl--1,1-cyclopentan-diacetat Curtius-omlejringen via azid-formen til dannelse af 1-aminomethyl-l-cyclopentan-eddikesyre-hydrochlorid med smp.s 110-120°C efter krystallisation fra en blanding af ethanol og ether.
Analyse; C8H16C1n02
Ber.: C = 49,61%, H = 8,33%, N = 7,23%.
Fund.: C = 49,63%, H = 8,12%, N = 7,23%.
Det benzensulfonat af 1-aminomethyl-l-cyclopentan-eddike-syre, der fås ved omsætning af den frie aminosyre med benzensulfon-syre i ethanolisk opløsning, har et smeltepunkt på 171-173°C.
Analyse:
C14H21N05S
Ber.: C = 53,31%, H = 6,71%, N = 4,44%.
Fund.: C = 53,44%, H = 6,77%, N = 4,58%.
Eksempel 12 n-Butyl-l-aminomethyl-l-cyclopentan-acetat På den i eksempel 7 beskrevne måde esterificeres 1-amino-methyl-l-cyclopentan-eddikesyre-hydrochlorid med n-butanol til dannelse af n-butyl-1-aminoraethyl-l-cyclopentan-acetat-hydrochlorid. Smp.: 50°C.
Det tilsvarende p-toluensulfonat, der fås efter gentagen inddampning af benzenopløsningen og ved tilsætning af en ækvimolær 13 147706 mængde p-toluensulfonsyre og omkrystallisation fra en blanding af chloroform, ether og hexan, har et smeltepunkt på 86-87°C.
Analyse;
C19H31N05S
Ber.: C = 59,19%, H = 8,11%, N = 3,63%.
Fund.: C = 59,35%, H = 7,99%, N = 3,88%.
Semicarbazidforsøg til påvisning af antikonvulsiv virkning.
Til undersøgelserne anvendes hanmus med en vægt på 18-22 g.
Hos dem kan der ved subcutan injektion af semicarbazid (1 g/kg) udløses en krampe, som kan forhindres ved forudgående indgift af antikonvulsive stoffer.
Ved forsøgene behandles i hver dosisgruppe 10 mus med de enkelte prøvepræparater (oral indgift), og 30 minutter senere injiceres semicarbazid. En samtidig kontrolgruppe får kun semicarbazid, og i denne lider i reglen alle dyrene af krampe inden for iagttagelsestiden. Når man sammenligner det antal dyr i præparatgruppen, som ikke får noget chok, med antallet af dyr i kontrolgruppen, fås den procentvise beskyttelsesvirkning.
Ud fra forskellige dosistrin kan man udregne den dosis, ved hvilken 50% af dyrene ikke lider af krampe (ED50). Jo lavere ED^q er, jo mere aktiv er forbindelsen.
I den efterfølgende tabel er angivet undersøgelsesresultaterne sammenlignet med valproinsyre (som natriumsalt), som kan anses for et standardmiddel, f.eks. til behandling af epilepsi.
Tabel
Forbindelse fra eksempel ED^.Q (mg/kg) 1 4,9 4 <30 3 <60
Valproinsyre-natrium- 100 salt
Af tabellen fremgår, at de omhandlede forbindelser, specielt forbindelsen ifølge eksempel 1, er valproinsyre-natriumsalt overlegne ved semicarbazidkrampeforsøgene.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2460891 | 1974-12-21 | ||
| DE2460891A DE2460891C2 (de) | 1974-12-21 | 1974-12-21 | 1-Aminomethyl-1-cycloalkanessigsäuren und deren Ester, Verfahren zu deren Herstellung und diese Verbindungen enthaltende Arzneimittel |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DK581475A DK581475A (da) | 1976-01-22 |
| DK147706B true DK147706B (da) | 1984-11-19 |
| DK147706C DK147706C (da) | 1985-05-13 |
Family
ID=5934284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK581475A DK147706C (da) | 1974-12-21 | 1975-12-19 | Analogifremgangsmaade til fremstilling af cycliske aminocarboxylsyrer eller farmakologisk acceptable salte deraf |
Country Status (16)
| Country | Link |
|---|---|
| US (1) | US4024175A (da) |
| JP (1) | JPS5324064B2 (da) |
| AT (1) | AT340892B (da) |
| BE (1) | BE836835A (da) |
| CA (1) | CA1052811A (da) |
| CH (3) | CH612664A5 (da) |
| DE (1) | DE2460891C2 (da) |
| DK (1) | DK147706C (da) |
| ES (1) | ES443723A1 (da) |
| FI (1) | FI62282C (da) |
| FR (1) | FR2294697A1 (da) |
| GB (1) | GB1465229A (da) |
| IE (1) | IE42382B1 (da) |
| LU (1) | LU74058A1 (da) |
| NL (1) | NL181006C (da) |
| SE (1) | SE423385B (da) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DK156826B (da) * | 1976-03-19 | 1989-10-09 | Warner Lambert Co | Fremgangsmaade til fremstilling af cycliske aminosyrer |
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1974
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1975
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- 1975-12-15 IE IE2736/75A patent/IE42382B1/en unknown
- 1975-12-18 BE BE6045299A patent/BE836835A/xx not_active IP Right Cessation
- 1975-12-18 CH CH1645175A patent/CH612664A5/xx not_active IP Right Cessation
- 1975-12-18 CH CH430778A patent/CH612665A5/xx not_active IP Right Cessation
- 1975-12-18 FR FR7538818A patent/FR2294697A1/fr active Granted
- 1975-12-18 CH CH430878A patent/CH612666A5/xx active Protection Beyond IP Right Term
- 1975-12-19 FI FI753613A patent/FI62282C/fi not_active IP Right Cessation
- 1975-12-19 DK DK581475A patent/DK147706C/da not_active IP Right Cessation
- 1975-12-19 SE SE7514442A patent/SE423385B/xx active Protection Beyond IP Right Term
- 1975-12-19 ES ES443723A patent/ES443723A1/es not_active Expired
- 1975-12-19 CA CA242,147A patent/CA1052811A/en not_active Expired
- 1975-12-19 LU LU74058A patent/LU74058A1/xx unknown
- 1975-12-20 NL NLAANVRAGE7514900,A patent/NL181006C/xx not_active IP Right Cessation
- 1975-12-22 AT AT975075A patent/AT340892B/de active Protection Beyond IP Right Term
- 1975-12-22 JP JP15319475A patent/JPS5324064B2/ja not_active Expired
- 1975-12-31 US US05/645,724 patent/US4024175A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DK156826B (da) * | 1976-03-19 | 1989-10-09 | Warner Lambert Co | Fremgangsmaade til fremstilling af cycliske aminosyrer |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2294697A1 (fr) | 1976-07-16 |
| CA1052811A (en) | 1979-04-17 |
| ES443723A1 (es) | 1977-04-16 |
| DE2460891C2 (de) | 1982-09-23 |
| CH612666A5 (da) | 1979-08-15 |
| IE42382L (en) | 1976-06-21 |
| FI62282B (fi) | 1982-08-31 |
| NL181006C (nl) | 1987-06-01 |
| CH612664A5 (da) | 1979-08-15 |
| AT340892B (de) | 1978-01-10 |
| AU8774175A (en) | 1977-06-23 |
| JPS5324064B2 (da) | 1978-07-18 |
| FI753613A7 (da) | 1976-06-22 |
| LU74058A1 (da) | 1976-07-20 |
| DE2460891A1 (de) | 1976-07-01 |
| ATA975075A (de) | 1977-05-15 |
| FI62282C (fi) | 1982-12-10 |
| CH612665A5 (da) | 1979-08-15 |
| SE7514442L (sv) | 1976-06-22 |
| FR2294697B1 (da) | 1978-07-28 |
| JPS5188940A (da) | 1976-08-04 |
| NL181006B (nl) | 1987-01-02 |
| IE42382B1 (en) | 1980-07-30 |
| NL7514900A (nl) | 1976-06-23 |
| BE836835A (fr) | 1976-06-18 |
| DK581475A (da) | 1976-01-22 |
| GB1465229A (en) | 1977-02-23 |
| US4024175A (en) | 1977-05-17 |
| DK147706C (da) | 1985-05-13 |
| SE423385B (sv) | 1982-05-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUP | Patent expired |