NO783243L - LASALOCID DERIVATIVES. - Google Patents

LASALOCID DERIVATIVES.

Info

Publication number
NO783243L
NO783243L NO783243A NO783243A NO783243L NO 783243 L NO783243 L NO 783243L NO 783243 A NO783243 A NO 783243A NO 783243 A NO783243 A NO 783243A NO 783243 L NO783243 L NO 783243L
Authority
NO
Norway
Prior art keywords
lower alkyl
formula
aryl
compound
compounds
Prior art date
Application number
NO783243A
Other languages
Norwegian (no)
Inventor
David Coffen
Original Assignee
Hoffmann La Roche
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US05/921,645 external-priority patent/US4193928A/en
Application filed by Hoffmann La Roche filed Critical Hoffmann La Roche
Publication of NO783243L publication Critical patent/NO783243L/en

Links

Landscapes

  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

Foreliggende oppfinnelse vedrører lasalocid-derivater med formelen The present invention relates to lasalocid derivatives with the formula

hvor R betyr aryl, substituert aryl, hetroaryl, aralkyl, cykloalkyl, lavere alkyl, lavere alkenyl, karbalkoksy-lavere-alkyl, aminoalkyl, lavere alkylaminoalky1, di-(lavere-alkyl)-aminoalkyl, hydroksyalky1, alkoksyalky1, tioalkoksyalkyl, karboksy-lavere-alky1 eller hydrogen. where R means aryl, substituted aryl, heteroaryl, aralkyl, cycloalkyl, lower alkyl, lower alkenyl, caralkyloxy-lower alkyl, aminoalkyl, lower alkylaminoalkyl1, di-(lower alkyl)aminoalkyl, hydroxyalkyl1, alkoxyalkyl1, thioalkylalkyl, carboxy-lower -alkyl or hydrogen.

Oppfinnelsen vedrører videre en fremgangsmåte ved fremstilling av forbindelsene I og farmasøytiske komposisjoner på basis av forbindelsene I. The invention further relates to a method for the production of the compounds I and pharmaceutical compositions based on the compounds I.

Det her anvendte uttrykk "alkyl" betegner alene eller i forbindelse med andre rester en rettlinjet eller forgrenet hydrokarbongruppe med 1-16 C-atomer. Foretrukne alkylgrupper er lavere alkylgrupper. Uttrykket "lavere" betegner grupper med 1-7 C-atomer. Eksempler på lavere alkylgrupper er metyl, etyl, isopropyl og tertiær butyl. The term "alkyl" used here denotes, alone or in connection with other residues, a linear or branched hydrocarbon group with 1-16 C atoms. Preferred alkyl groups are lower alkyl groups. The term "lower" denotes groups with 1-7 C atoms. Examples of lower alkyl groups are methyl, ethyl, isopropyl and tertiary butyl.

Uttrykket "aryl" betegner en usubstituert monokarbocyklisk aromatisk rest, som fenyl. The term "aryl" denotes an unsubstituted monocarbocyclic aromatic residue, such as phenyl.

i I in I

!_ I !_ I

I l ! Eksempler på "substituert aryl" er alkyl-, karboksy-, halogen-,! alkoksy- eller nitro-substituert fenyl, som tolyl. I l! Examples of "substituted aryl" are alkyl-, carboxy-, halogen-,! alkoxy- or nitro-substituted phenyl, such as tolyl.

Uttrykket "halogen" eller "halo" omfatter klor, brom, fluor og jod. The term "halogen" or "halo" includes chlorine, bromine, fluorine and iodine.

En cykloalkylre.st inneholder fortrinnsvis 4-7 C-atomer.. som cykloheksyl. A cycloalkyl residue preferably contains 4-7 C atoms, such as cyclohexyl.

Uttrykket "heteroaryl" betegner en usubstituert mono-heterocyklisk aromatisk rest slik som pyridyl eller furyl. The term "heteroaryl" denotes an unsubstituted mono-heterocyclic aromatic radical such as pyridyl or furyl.

Uttrykket "aralkyl" betegner en rettlinjet eller forgrenet alkyl-gruppe som er substituert ved en mono-karbo-cyklisk rest, som benzyl. The term "aralkyl" denotes a straight or branched alkyl group which is substituted by a mono-carbocyclic residue, such as benzyl.

Uttrykket "lavere alkenyl" betegner en rettlinjet eller forgrenet hydrokarbongruppe som har en olefinisk dobbeltbinding og 2 - 7 C-atomer. The term "lower alkenyl" denotes a straight or branched hydrocarbon group having an olefinic double bond and 2-7 carbon atoms.

En foretrukket gruppe av forbindelser med formel I er de hvori R<1>er aryl, substituert aryl, aralkyl, cykloalkyl, alvere alkyl, karboksy-lavere-alkyl eller hydrogen. Særlig foretrukket er forbindelser med formel I hvori R<1>er fenyl, klorfenyl, cykloheksyl, benzyl eller karboksymetyl. Sterkest foretrukket er forbindelsene med formel I hvori R<1>er fenyl, dvs. forbindelsen 1-(fenyltiometyl)-1-dekarboksylasalocid. A preferred group of compounds of formula I are those in which R<1> is aryl, substituted aryl, aralkyl, cycloalkyl, lower alkyl, carboxy-lower alkyl or hydrogen. Particularly preferred are compounds of formula I in which R<1> is phenyl, chlorophenyl, cyclohexyl, benzyl or carboxymethyl. Most preferred are the compounds of formula I in which R<1> is phenyl, i.e. the compound 1-(phenylthiomethyl)-1-decarboxylasaloside.

Forbindelsene med formel I erholdes ifølge oppfinnelsen ved at man omsetter en forbindelse med formel The compounds of formula I are obtained according to the invention by reacting a compound of formula

2 3 hvor R og R er lavere alkyl eller sammen med nitrogen- 2 3 where R and R are lower alkyl or together with nitrogen-

atomet en 5- til 6-leddet heterocyklisk ring som kan inneholde et ytterligere he.teroatom, the atom a 5- to 6-membered heterocyclic ring which may contain a further heteroatom,

med en forbindelse med formel R^SH, hvor R"^ har ovennevnte be-tydning, i nærvær av en svak base. with a compound of formula R^SH, where R"^ has the above meaning, in the presence of a weak base.

Ved denne reaksjonen er en svak base en sådan som er tilstrek-kelig til å danne ortokinon-metid og den konjugerte base av det foreliggende merkaptan, dvs. R^S uten å bevirke en retro-aldolspaltning av lasalocidmolekylet. Egnede baser er alkali-metall, f.eks. natrium-eller kaliumkarbonater og bikarbonater, trialkylaminer eller pyridin. Egnede løsningsmidler for denne reaksjonen er alkoholer f.eks. metanol eller etanol, høytkok-ende etere, dioksan eller tetrahydrofuran og etylacetat. Reaksjonstemperaturen kan ligge mellom romtemperatur og tilbake-løpstemperatur, hvorved det anvendte løsningsmiddels tilbake-løpstemperatur er foretrukket. Foretrukne reaksjonspartnere er tiofenol, p-klortiofenol, cykloheksylmerkaptan, benzylmerkaptan og merkaptoeddiksyre, idet man får forbindelse med formel I hvori R"<*>" er f enyl, p-klorfenyl, cykloheksyl, benzyl hhv. karboksymetyl. ;Utgangsmaterialet med formel II kan fremstilles fra lasalocid, en forbindelse med formel ; ; ved hjelp av en Mannich-reaksjon, nærmere bestemt ved hjelp av en blanding av et dialkylamin eller et cyklisk amin som morfo-lin, piperidin eller pyrrolidin og p-formaldehyd eller vandig formaldehyd. Egnede løsningsmidler for denne reaksjonen er C^-C^alkoholer, toluen, benzen, klorerte hydrokarboner og etere i som dioksan eller tetrahydrofuran. Reaksjonstemperaturen kan ;'variere fra 60°C til det avendte løsningsmiddels tilbakeløps-temperatur hvorved tilbakeløpstemperatur'er foretrukket. ;Forbindelsen med formel III, lasalocid, også kjent som "antibiotikum X-537 A", er et krystallinsk antibiotikum som produ-seres av en streptomycin-organisme fra en jordprøve samlet i Hyde Park, Massachusetts. Lyofiliserte prøver av kulturen som har laboratoriebetegnelsen-X-537, ble deponert-i United States Department of Agriculture, Agriculture Research Service, Northern Utilization Research and Development Division, Peoria, Illinois. Kulturen, som fikk identifikasjonsnummer NRRL 3382 av Agricultural Research Service, ble gjort offentlig tilgjengelig gjennom NRRL. En erstatningskultur som er en nær beslektet stamme av den opprinnelige deponerte kultur NRRL 3382, dvs. har både felles avstamnings- og morfologiske karakteristika, ble deponert hos NRRL under nummeret NRRL 3382R.. Denne kultur er i likhet med den opprinnelige deponerte kultur NRRL 3382 offentlig tilgjengelig. ;Lasalocid (antibiotikum X-537 A) fremstilles ved dyrkning av Streptomyces-organismen i en luftgjennomblåst neddykknings-kultur hvis pH er omtrent nøytral, dvs. ca. 6,5 til 7,5. Mediet får en nitrogenkilde som gjær, et gjærderivat, maismel, bønnemel ol., hvorved soyabønnemel er spesielt foretrukket, ;og en kullhydratkilde som sukker, melasse ol., hvorved råsukker er særlig foretrukket. Fermenteringen utføres ved litt høyere temperaturer, dvs. mellom 25°C og 3 5°C, særlig foretrukket er en inkubasjonstemperatur på ca. 28°C. Etter 4- til 6-dagers inkubering frafiltreres fermenteringsgrøten og antibiotikumet erholdes gjennom ekstraksjon. ;Forbindelsen med formel I har antihypertensiv aktivitet. ;Under anvendelse av en standard som kontroll for sammenlign-ingsformål ble 1-(fenyltio-metyl)-1-dekarboksylasalocid under-søkt med hensyn på antihypertensiv aktivitet. Forsøkene ble gjennomført med enkeltvis orale doser på DOCA-Na-rotte over et tidsrom på 5 dager. Etter 5-dagers perioden ble preparatet jstanset. Blodtrykksmålinger ble utført under 5-dagers periodenj I og deretter daglig etter opphør av preparatet inntil blodtrykk-*i et hadde innstilt seg på utgangsverdien før medikamenteringen. Den daglige dosering var 10 mg/kg. De følgende resultater ble oppnådd: In this reaction, a weak base is one that is sufficient to form the orthoquinone methide and the conjugate base of the present mercaptan, i.e. R 2 S without causing a retro-aldol cleavage of the lasalocid molecule. Suitable bases are alkali metal, e.g. sodium or potassium carbonates and bicarbonates, trialkylamines or pyridine. Suitable solvents for this reaction are alcohols, e.g. methanol or ethanol, high-boiling ethers, dioxane or tetrahydrofuran and ethyl acetate. The reaction temperature can lie between room temperature and reflux temperature, whereby the reflux temperature of the solvent used is preferred. Preferred reaction partners are thiophenol, p-chlorothiophenol, cyclohexyl mercaptan, benzyl mercaptan and mercaptoacetic acid, whereby a compound of formula I is obtained in which R"<*>" is phenyl, p-chlorophenyl, cyclohexyl, benzyl respectively. carboxymethyl. The starting material of formula II can be prepared from lasalocid, a compound of formula; ; by means of a Mannich reaction, more specifically by means of a mixture of a dialkylamine or a cyclic amine such as morpholine, piperidine or pyrrolidine and p-formaldehyde or aqueous formaldehyde. Suitable solvents for this reaction are C₁-C₂ alcohols, toluene, benzene, chlorinated hydrocarbons and ethers such as dioxane or tetrahydrofuran. The reaction temperature can vary from 60°C to the reflux temperature of the solvent used, whereby reflux temperature is preferred. The compound of formula III, lasalocid, also known as "antibiotic X-537 A", is a crystalline antibiotic produced by a streptomycin organism from a soil sample collected in Hyde Park, Massachusetts. Lyophilized samples of the culture bearing the laboratory designation-X-537 were deposited-in the United States Department of Agriculture, Agriculture Research Service, Northern Utilization Research and Development Division, Peoria, Illinois. The cultivar, given the identification number NRRL 3382 by the Agricultural Research Service, was made publicly available through NRRL. A replacement culture which is a closely related strain of the original deposited culture NRRL 3382, i.e. has both common lineage and morphological characteristics, was deposited with NRRL under the number NRRL 3382R.. This culture, like the original deposited culture NRRL 3382, is in the public domain available. ;Lasalocid (antibiotic X-537 A) is produced by growing the Streptomyces organism in an air-blown immersion culture whose pH is approximately neutral, i.e. approx. 6.5 to 7.5. The medium receives a nitrogen source such as yeast, a yeast derivative, maize flour, bean flour etc., whereby soybean flour is particularly preferred, and a carbohydrate source such as sugar, molasses etc., whereby raw sugar is particularly preferred. The fermentation is carried out at slightly higher temperatures, i.e. between 25°C and 35°C, an incubation temperature of approx. 28°C. After a 4- to 6-day incubation, the fermentation mash is filtered off and the antibiotic is obtained through extraction. The compound of formula I has antihypertensive activity. Using a standard as a control for comparison purposes, 1-(phenylthiomethyl)-1-decarboxylasalocid was examined for antihypertensive activity. The experiments were carried out with individual oral doses on DOCA-Na rats over a period of 5 days. After the 5-day period, the preparation was discontinued. Blood pressure measurements were carried out during the 5-day periodj I and then daily after cessation of the preparation until the blood pressure-*i et had adjusted to the starting value before the medication. The daily dosage was 10 mg/kg. The following results were obtained:

1-[(karboksymetyl)tiometyl]-1-dekarboksylasalocid, 1-(p-klor-fenyltiometyl)-1-dekarboksylasalocid, 1-(benzyltiomety1)-1-de-karboksylasalocid og 1-(cykloheksyltiometyl)-1-dekarboksylasa-locid ble likeledes undersøkt. 1-[(carboxymethyl)thiomethyl]-1-decarboxylasaloside, 1-(p-chloro-phenylthiomethyl)-1-decarboxylasaloside, 1-(benzylthiomethyl)-1-decarboxylasaloside and 1-(cyclohexylthiomethyl)-1-decarboxylasaloside was also investigated.

Resultatene er gjengitt i den etterfølgende tabell. Av resultatene fremgår at under påbegynnelse og varighet av antihyper-tensive virkninger består forskjeller, men at de ovenfor nevnte forbindelser har en antihypertensiv aktivitet når man sammen-ligner blodtrykket 1. dag med 5. dag etter opphør av medikament-et. The results are reproduced in the following table. The results show that there are differences in the onset and duration of antihypertensive effects, but that the above-mentioned compounds have an antihypertensive activity when blood pressure is compared on the 1st day with the 5th day after discontinuation of the drug.

Eksempel A I Example A I

Kapsler kan inneholde følgende bestanddeler: Capsules may contain the following ingredients:

Fremgangsmåte: Approach:

1. Bestanddelene 1, 3 og 5 blandes. 1. The components 1, 3 and 5 are mixed.

2. Bestanddelene-2 og 5 løses i destillert vann og/eller alkohol, granuleres til den riktige konsistens og males. 2. Components-2 and 5 are dissolved in distilled water and/or alcohol, granulated to the correct consistency and ground.

3. Tørking i ovn. 3. Drying in oven.

4. Maling og blanding med talkum og magnesiumstearat i 2 min. 4. Grinding and mixing with talc and magnesium stearate for 2 min.

5. Forkapsling. 5. Encapsulation.

Eksemne1 B Example 1 B

& &

Tabletter kan følgende sammensetning: Tablets can have the following composition:

Fremgangsmåte: I Procedure: I

1. Blanding av bestanddelene 1 - 4 i et egnet apparat. 1. Mixing the components 1 - 4 in a suitable device.

2. Granulering med destillert vann til passende konsistens. 2. Granulation with distilled water to a suitable consistency.

3. Maling. 3. Paint.

3. Tørking i ovn. 3. Drying in oven.

4. Maling av blanding med magnesiumstearat i 3 minutter. 4. Grinding mixture with magnesium stearate for 3 minutes.

5. Pressing til tabletter. 5. Pressing into tablets.

Til anvendelse som hypertensive midler kan forbindelsen med formel I bringes i form av farmasøytiske preparater med inerte far-masøytiske hjelpemidler i egnet doseringsform for oral administrering. Andre doseringsformer, f.eks. den parenterale, er også mulig. Eksempler på orale doseringsformer er tabletter, kapsler, drageer, suspensjoner og løsninger. Som hjelpemidler kan uorganiske eller organiske stoffer som f.eks. gelatin, al-bumin, laktose, stivelse, magnesiumstearat, konserveringsmidler (stabilisatorer), glidemidler, emulgatorer, salter for endring For use as hypertensive agents, the compound of formula I can be brought in the form of pharmaceutical preparations with inert pharmaceutical aids in a suitable dosage form for oral administration. Other dosage forms, e.g. the parenteral, is also possible. Examples of oral dosage forms are tablets, capsules, dragees, suspensions and solutions. As aids, inorganic or organic substances such as e.g. gelatin, albumin, lactose, starch, magnesium stearate, preservatives (stabilizers), lubricants, emulsifiers, salts for modification

av det osmotiske trykk og puffer anvendes som er vanlig i slike preparater. of the osmotic pressure and buffers are used which are common in such preparations.

Det har vist seg at den subakutte orale administrering for behandling av høyt trykk hos varmblodige vesener f.eks. DOCA-Na-hypertensiv rotte, dvs. en dosering opp til 5 dager med derpå følgende opphør av preparatet er mest. virksomt, når doserings-området ligger mellom ca. 5 mg/kg og 100 mg/kg, spesielt mellom 5 mg/kg og 10 mg/kg. Den kroniske orale administrering, dvs. It has been shown that the subacute oral administration for the treatment of high pressure in warm-blooded beings e.g. DOCA-Na hypertensive rat, i.e. a dosage of up to 5 days followed by cessation of the preparation is the most. effectively, when the dosage range is between approx. 5 mg/kg and 100 mg/kg, especially between 5 mg/kg and 10 mg/kg. The chronic oral administration, i.e.

en dosering utover 5 dager, er mest virksom når et lavt doserings-nivå anvendes, dvs. lavere enn 0,1 mg/kg daglig, f.eks. 0,01 mg/kg til ca. 5 mg/kg pr. dag. De forannevnte beskrevne, doserings-planer kan også anvendes ved behandling av andre kardiovaskulære a dosage beyond 5 days is most effective when a low dosage level is used, i.e. lower than 0.1 mg/kg daily, e.g. 0.01 mg/kg to approx. 5 mg/kg per day. The dosage plans described above can also be used in the treatment of other cardiovascular diseases

symptomer som Angina pectoris, Claudicatio og nedsatt blodgjennom-strømning i hjernen. Ved doseringen er doseringsskjemaet for den kroniske administrering særlig foretrukket, dvs. en dosering fra mindre enn 0,1 mg/kg pr. dag opp til ca. 5 mg/kg pr. dag. symptoms such as Angina pectoris, Claudication and reduced blood flow in the brain. For the dosage, the dosage form for the chronic administration is particularly preferred, i.e. a dosage from less than 0.1 mg/kg per day up to approx. 5 mg/kg per day.

EKSEMPEL 1 EXAMPLE 1

Streptomycesstammen NRRL 3382 R ble dyrket i beluftet dypkultur i rystekolber. Substratet ble ved tilsetning av kalilut innstilt på pH 6,5 - 7,5 og deretter sterilisert. I en fermenter-ingstank ble substratet som inneholdt 2% soyabønnemel, 2% råsukker, 0,5% maissvellevann og 0,1% K^IPO^ podet med 5 - 10% The Streptomyces strain NRRL 3382 R was grown in aerated deep culture in shake flasks. The substrate was adjusted to pH 6.5 - 7.5 by the addition of potassium hydroxide and then sterilized. In a fermentation tank, the substrate containing 2% soybean meal, 2% raw sugar, 0.5% corn-swell water and 0.1% K^IPO^ was inoculated with 5 - 10%

av et inokulum fra en 3 dager gammel dypkultur. Fermenteringen ble utført ved 28° under positivt lufttrykk hvorunder pr. min-utt og pr. 150 - 300 1 væske en luftstrøm på 140-280 1 opprett-holdt. Kulturen ble høstet etter 4 til 6 dagers fermentering, filtrert og antibiotikumet utskilt ved ekstraksjon som følger: 204 1 kulturløsning ble filtrert og den fuktige filterkaken ble oppslemmet i 100 1 butylacetat og rørt natten over ved romtemperatur. Blandingen ble så filtrert og det vandige skiktet ad-skilt og kastet. Butylacetatløsningen som hadde 30 millioner Bazillus E-enheter, ble konsentrert under redusert trykk til 3 1, vasket med 10%-ig natriumkarbonatløsning og tørket over natriumsulfat. of an inoculum from a 3-day-old deep culture. The fermentation was carried out at 28° under positive air pressure during which per min-out and per 150 - 300 1 liquid an air flow of 140-280 1 maintained. The culture was harvested after 4 to 6 days of fermentation, filtered and the antibiotic separated by extraction as follows: 204 L of culture solution was filtered and the moist filter cake was slurried in 100 L of butyl acetate and stirred overnight at room temperature. The mixture was then filtered and the aqueous layer separated and discarded. The butyl acetate solution having 30 million Bazillus E units was concentrated under reduced pressure to 3 L, washed with 10% sodium carbonate solution and dried over sodium sulfate.

Etter ytterligere inndampning til 300 ml og fortynning med 350 ml petroleter (kokepunkt 50 - 60°) ble 41 g fast stoff med et innhold på 25 millioner;.Bazillus E-enheter isolert. Dette faste stoffet ble så ekstrahert i et Soxhletapparat 40 timer med 4 1 petroleter (kokepunkt 50 - 60°). Ekstraktet ble bragt til tørr-het under redusert trykk, den krystallinske resten oppslemmet i petroleter og filtrert og ga 24,49 g av en blanding av 3-metyl-6-[7-etyl-4-hydroksy-3,5-dimetyl-6-okso-7-Z5-etyl-3-metyl-5-(5-etyl-5-hydroksy-6-metyl-2-tetrahydropyranyl)-2-tetrahydrofuryl7~heptyl]salicylsyre(Lasalocid) og saltet derav. Moderluten ga ytterligere 5,73 g av antibiotikumet. After further evaporation to 300 ml and dilution with 350 ml of petroleum ether (boiling point 50-60°), 41 g of solid containing 25 million Bazillus E units were isolated. This solid was then extracted in a Soxhlet apparatus for 40 hours with 4 l of petroleum ether (boiling point 50 - 60°). The extract was brought to dryness under reduced pressure, the crystalline residue slurried in petroleum ether and filtered to give 24.49 g of a mixture of 3-methyl-6-[7-ethyl-4-hydroxy-3,5-dimethyl- 6-oxo-7-Z5-ethyl-3-methyl-5-(5-ethyl-5-hydroxy-6-methyl-2-tetrahydropyranyl)-2-tetrahydrofuryl7~heptyl]salicylic acid (Lasalocid) and its salt. The mother liquor gave an additional 5.73 g of the antibiotic.

Etter omkrystallisering fr.a. eter-petroleter ble det natriumhold-ige materialet løst i eter og vasket med fortynnet svovelsyre for å overføre det i den frie syren. Fjerning av eteren ga en oljeaktig rest som krystalliserte fra etanol og ga rent Lasalocid-etanolåt. Flere omkrystalliseringer fra etanol endret ikke smeltepunktet som forble uskarpt ved 100-109°C. After recrystallization from ether-petroleum ether, the sodium-containing material was dissolved in ether and washed with dilute sulfuric acid to transfer it into the free acid. Removal of the ether gave an oily residue which crystallized from ethanol to give pure Lasalocid ethanolate. Several recrystallizations from ethanol did not change the melting point which remained indistinct at 100-109°C.

i I in I

Eksempel2I En blanding av 5 g Lasalocid-etanolat, 2,5 g paraformaldehyd og 2,5 g dietylamin i 200 ml toluen ble oppvarmet 90 minutter under røring ved tilbakeløp. Under tilbakeløpsoppvarmingen ble vann-et samlet i en felle. Den erholdte løsningen ble fortynnet med eter, vasket med vann og med sterkt fortynnet (ca. 0,05 N) saltsyre. Det organiske skiktet ble tørket, filtrert og løsnings-midlet fjernet under redusert trykk, hvorved en lysegul (mange ganger fargeløs harpiks) ble tilbake. Denne rå Mannich-basen, 1-(dietylaminometyl)-1-dekarboksylasalocid, inneholdt toluen, men ble anvendt direkte i det neste trinn. Example 2I A mixture of 5 g of Lasalocid ethanolate, 2.5 g of paraformaldehyde and 2.5 g of diethylamine in 200 ml of toluene was heated for 90 minutes with stirring at reflux. During reflux heating, the water was collected in a trap. The solution obtained was diluted with ether, washed with water and with highly diluted (approx. 0.05 N) hydrochloric acid. The organic layer was dried, filtered and the solvent removed under reduced pressure, whereby a pale yellow (many times colorless resin) remained. This crude Mannich base, 1-(diethylaminomethyl)-1-decarboxylasaloside, contained toluene but was used directly in the next step.

Eksempel 3 Example 3

En løsning av 9,7 g av den i eksempel 2 fremstilte Mannich-base, 4,5 ml tiofenol og 4 mg trietylamin i 125 ml etanol ble oppvarmet 18 timer ved tilbakeløp. Løsningsmidlet ble avdampet under redusert trykk og resten tatt opp i'metylenklorid. Etter vask-ing med vann og fortynnet natriumkarbonatløsning ble løsningen tørket og løsningsmidlet avdampet. Råproduktet ble renset ved kromatografi på 200 g kiselgel. Med heksan/etylacetat (8:1) ble tiofenol og med heksan/etylacetat (6:1) produktet, 1-(fenyl-tio-metyl)-1-dekarboksylasalocid eluert. Avdampning av løsningsmid-let, til slutt under redusert trykk, ga et fargeløst skum. A solution of 9.7 g of the Mannich base prepared in example 2, 4.5 ml of thiophenol and 4 mg of triethylamine in 125 ml of ethanol was heated for 18 hours at reflux. The solvent was evaporated under reduced pressure and the residue taken up in methylene chloride. After washing with water and dilute sodium carbonate solution, the solution was dried and the solvent was evaporated. The crude product was purified by chromatography on 200 g of silica gel. With hexane/ethyl acetate (8:1) thiophenol and with hexane/ethyl acetate (6:1) the product, 1-(phenyl-thio-methyl)-1-decarboxylasaloside, were eluted. Evaporation of the solvent, finally under reduced pressure, gave a colorless foam.

Eksempel 4 Example 4

En løsning av 1,4 g 1-(dietylaminometyl)-1-dekarboksylasalocid, A solution of 1.4 g of 1-(diethylaminomethyl)-1-decarboxylasaloside,

2 g p-klortiofenol og 2 ml trietylamin i 50 ml etanol ble oppvarmet 18 timer ved tilbakeløp. Da reaksjonen ikke var full-stendig (tynnskiktkromatogram) ble ytterligere 2 g p-klortiofenol og 2 ml trietylamin tilsatt og tilbakeløpsoppvarmingen fort-satte i 24 timer. Etter avkjøling ble løsningsmidlet aminet avdampet under redusert trykk og resten tatt opp i metylenklorid. Denne løsningen ble vasket .med vandig natriumkarbonatløsning, tørket over natriumsulfat og inndampet. 2 g of p-chlorothiophenol and 2 ml of triethylamine in 50 ml of ethanol were heated for 18 hours at reflux. When the reaction was not complete (thin-layer chromatogram), a further 2 g of p-chlorothiophenol and 2 ml of triethylamine were added and reflux heating continued for 24 hours. After cooling, the solvent amine was evaporated under reduced pressure and the residue taken up in methylene chloride. This solution was washed with aqueous sodium carbonate solution, dried over sodium sulfate and evaporated.

Resten var en blanding, hovedsaklig av p<->klortiofenol og den ønskede tioeter, 1-(p-klorfenyltiometyl)-1-dekarboksylasalocid, som ble kromatografert med benzen/etylacetat (2:1) som eluerings-middel. Fraksjonene som inneholdt produktet (tynnskiktkromato-J grafi) ble slått sammen og ga ved inndampning et fargeløst fast skum som ble flytende ved 42-46°C. The residue was a mixture, mainly of p<->chlorothiophenol and the desired thioether, 1-(p-chlorophenylthiomethyl)-1-decarboxylasaloside, which was chromatographed with benzene/ethyl acetate (2:1) as eluent. The fractions containing the product (thin layer chromatography) were combined and, on evaporation, gave a colorless solid foam which liquefied at 42-46°C.

Eksempel 5 Example 5

1,4 g 1-(dietylaminometyl)-1-dekarboksylasalocid, 2 ml cykloheksylmerkaptan og 2 ml trietylamin ble oppvarmet i 50 ml etanol ved tilbakeløp. Ved hjelp av den i eksempel 4 beskrevne fremgangsmåte' innbefattende tilsetning av ytterligere cykloheksylmerkaptan og trietylamin etter 18 timer ble produktet, 1-(cykloheksyl-tiometyl)-1-dekarboksylasalocid, erholdt som fargeløst fast skum etter rensning på en kiselgelkolonne. 1.4 g of 1-(diethylaminomethyl)-1-decarboxylasaloside, 2 ml of cyclohexyl mercaptan and 2 ml of triethylamine were heated in 50 ml of ethanol at reflux. By means of the method described in example 4, including the addition of further cyclohexyl mercaptan and triethylamine after 18 hours, the product, 1-(cyclohexyl-thiomethyl)-1-decarboxylasalocid, was obtained as a colorless solid foam after purification on a silica gel column.

Eksempel 6 Example 6

4v5 g 1-(dietylaminometyl)-1-dekarboksylasalocid, 5 ml benzylmerkaptan og 5 ml trietylamin ble oppvarmet under tilbakeløp natten over i 100 ml etanol. Etter kjøling og avdampning av løsnings-midlet under redusert trykk ble resten kromatografert på kis.el-gel med heksan/etylacetat (5:1). Fraksjonene som inneholdt produktet ble forenet og inndampet. Det herved erholdte produkt var forurenset av små mengder benzylmerkaptan og ble renset ved preparativ skiktkromatografi på 6 20 x 20 cm kiselgelplater med heksan/etylacetat (4:1). Det rene produkt, 1-(benzyltiomety1-1-dekarboksylasalocid, ble erholdt som fargeløst fast skum. 4v5 g of 1-(diethylaminomethyl)-1-decarboxylasaloside, 5 ml of benzyl mercaptan and 5 ml of triethylamine were heated under reflux overnight in 100 ml of ethanol. After cooling and evaporation of the solvent under reduced pressure, the residue was chromatographed on silica gel with hexane/ethyl acetate (5:1). The fractions containing the product were combined and evaporated. The product thus obtained was contaminated by small amounts of benzyl mercaptan and was purified by preparative layer chromatography on 6 20 x 20 cm silica gel plates with hexane/ethyl acetate (4:1). The pure product, 1-(benzylthiomethyl-1-decarboxylasaloside), was obtained as a colorless solid foam.

Eksempel 7 Example 7

En løsning av 3 g av den ifølge eksempel 2 fremstilte Mannichbase, 3 ml merkaptoeddiksyre og 3 ml trietylamin i 100 ml etanol ble A solution of 3 g of the Mannich base prepared according to example 2, 3 ml of mercaptoacetic acid and 3 ml of triethylamine in 100 ml of ethanol was

oppvarmet 36 timer ved tilbakeløp. Etanolet ble så fjernet under redusert trykk og resten i metylenkloridløsning vasket med fortynnet vandig natriumkarbonatløsning, vann, 0,5N saltsyre og vann. Etter tørkning og inndampning ble råproduktet kromatografert på kiselgel med 4% metanol i kloroform. Da det viste seg at produktet absorberte natriumioner fra uorganisk materiale, ble eluatet som inneholdt produktet vasket før inndampning med sterkt fortynnet saltsyre. 1-[(karboksymety1)tiometyl]-1-dekarboksylasalocid ble således erholdt som fargeløst skum. heated 36 hours at reflux. The ethanol was then removed under reduced pressure and the residue in methylene chloride solution washed with dilute aqueous sodium carbonate solution, water, 0.5N hydrochloric acid and water. After drying and evaporation, the crude product was chromatographed on silica gel with 4% methanol in chloroform. As the product was found to absorb sodium ions from inorganic material, the eluate containing the product was washed before evaporation with highly dilute hydrochloric acid. 1-[(carboxymethyl)thiomethyl]-1-decarboxylasaloside was thus obtained as a colorless foam.

Eksempel 8 Example 8

En løsning av 1,85 g 1-(dietylaminometyl)-1-dekarboksylasalocid | og 2 ral trietylamin i 50 ml etanol ble oppvarmet 32 timer ved tilbakeløp mens en langsom strøm av hydrogensulfid ble ledet gjennom løsningen. Etter avdampning av løsningsmidlet under 'redusert trykk ble resten kromatografert på preparative skiktplat-er ( 20 x 20 cm, kiselgel) . Produktet, 1-merkaptometyl-l-dekarboksy-lasalocid, ble erholdt som fargeløst fast skum. A solution of 1.85 g of 1-(diethylaminomethyl)-1-decarboxylasaloside | and 2 ral of triethylamine in 50 ml of ethanol were heated for 32 hours at reflux while a slow stream of hydrogen sulphide was passed through the solution. After evaporation of the solvent under reduced pressure, the residue was chromatographed on preparative layer plates (20 x 20 cm, silica gel). The product, 1-mercaptomethyl-1-decarboxylasaloside, was obtained as a colorless solid foam.

Eksempel 9 Example 9

~En løsning av 1 g 1-(dietylaminometyl)-1-dekarboksylasalocid og ~A solution of 1 g of 1-(diethylaminomethyl)-1-decarboxylasalocid and

2 ml trietylamin i 50 ml etanol ble oppvarmet 8 timer ved tilbake-løp hvorved gassformig metylmerkaptan ble innledet. Etter inndampning og rensning ved preparativ skiktkromatografi ble 300 mg 1-(metyltiometyl)-1-dekarboksylasalocid erholdt som fargeløst fast skum. 2 ml of triethylamine in 50 ml of ethanol were heated for 8 hours at reflux whereby gaseous methyl mercaptan was introduced. After evaporation and purification by preparative layer chromatography, 300 mg of 1-(methylthiomethyl)-1-decarboxylasalocid was obtained as a colorless solid foam.

Eksempel 10 Example 10

En løsning av 1,4 g 1-(dietylaminometyl)-1-dekarboksylasalocid, A solution of 1.4 g of 1-(diethylaminomethyl)-1-decarboxylasaloside,

2 ml furfurylmerkaptan og 2 ml dietylamin i 50 ml etanol ble oppvarmet 42 timer ved tilbakeløp hvorved 2 ml ytterligere base og 2 ml merkaptan ble tilsatt etter 18 timer. Etter inndampning.og 2 ml of furfuryl mercaptan and 2 ml of diethylamine in 50 ml of ethanol were heated for 42 hours at reflux whereby 2 ml of additional base and 2 ml of mercaptan were added after 18 hours. After evaporation.and

rensning ved preparativ skiktkromatografi erholdtes produktet, 1-(furylmetyltiometyl)-1-dekarboksylasalocid,som fargeløst fast skum. purification by preparative layer chromatography yielded the product, 1-(furylmethylthiomethyl)-1-decarboxylasalocid, as a colorless solid foam.

Eksempel 11 Example 11

Ved den overfor beskrevne fremgangsmåte og under anvendelse av det passende tiol kan forbindelsen med formel I fremstilles hvori R er allyl, 2-aminofenyl, 4-aminofenyl, 4-brom-3-metylfenyl, 4-bromfenyL lt-butyl, 2-butyl, tert.butyl, isobutyl, karboetoksy-metyl, karbometoksymetyl, 2-karboksyetyl, o-karboksyfenyl, 4-klor-benzyl, 2-n-decylaminoetyl, 2,5-diklorfenyl, 3,4-diklorfeny1, 2-dietylaminoetyl, 2-diisopropylaminoetyl, 1-dodecyl, etyl, 4-fluor-fenyl, n-heptyl, n-heksadecy1, 2-hydroksyety1, 2-etoksyetyl, 2-etyltioetyl, 1-mety1-2-imidazolyl, 2,3-dihydroksypropyl, 2-pyridyl, 4-pyridyl, 3-hydroksy-2-pyridy1, 2-tiazolyl, 2-metoksyfenyl, 3-metoksyfenyl, 4-metoksyfeny1, 2-metyl-2-butyl, 3-metyl-l-buty1, 4-nitrofenyl, 1-nonyl, 1-octyl, pentaklorfeny1, pentafluorfeny1, 1-pentyl, 3-fenyl-l-propyl, 1-propyl, 2-propyl, 2-kinolyl, 2 , 3 ,5 ,6-tetraf luorf enyl, p-tolyl, 2 , 4 , 5-triklorf enyl, 7-trifluorj- By the process described above and using the appropriate thiol, the compound of formula I can be prepared in which R is allyl, 2-aminophenyl, 4-aminophenyl, 4-bromo-3-methylphenyl, 4-bromophenyl, t-butyl, 2-butyl, tert.butyl, isobutyl, carboethoxy-methyl, carbomethoxymethyl, 2-carboxyethyl, o-carboxyphenyl, 4-chloro-benzyl, 2-n-decylaminoethyl, 2,5-dichlorophenyl, 3,4-dichloropheny1, 2-diethylaminoethyl, 2- diisopropylaminoethyl, 1-dodecyl, ethyl, 4-fluoro-phenyl, n-heptyl, n-hexadecy1, 2-hydroxyethyl1, 2-ethoxyethyl, 2-ethylthioethyl, 1-methyl1-2-imidazolyl, 2,3-dihydroxypropyl, 2- pyridyl, 4-pyridyl, 3-hydroxy-2-pyridy1, 2-thiazolyl, 2-methoxyphenyl, 3-methoxyphenyl, 4-methoxypheny1, 2-methyl-2-butyl, 3-methyl-l-buty1, 4-nitrophenyl, 1-nonyl, 1-octyl, pentachlorophenyl1, pentafluorophenyl1, 1-pentyl, 3-phenyl-1-propyl, 1-propyl, 2-propyl, 2-quinolyl, 2 , 3 ,5 ,6-tetrafluorophenyl, p- tolyl, 2, 4, 5-trichlorophenyl, 7-trifluoro-

Claims (13)

1. Fremgangsmåte ved fremstilling av forbindelser med formelen 1. Procedure for the preparation of compounds with the formula hvor R"*" betyr aryl, substituert aryl, heteroaryl, aralkyl, cykloalkyl, lavere alkyl, lavere alkenyl, karbalkoksy-lavere-alkyl, aminoalkyl, lavere alky1-aminoalky1, di(lavere-alkyl)-aminoalkyl, hydroksyalkyl, alkoksyalky1, tioalkoksyalkyl, karboksy-lavere-alkyl eller hydrogen,karakterisert vedat man omsetter en forbindelse med formen i 2 3 hvor R og R er lavere alkyl eller sammen med nitrogen- ^ atomet danner en 5- eller 6-leddet heterocyklisk ring som kan inneholde et ytterligere heteroatom, i'med en forbindelse med formel R^SH, hvor R^" har ovennevnte be-tydning, i nærvær av en svak base.where R"*" means aryl, substituted aryl, heteroaryl, aralkyl, cycloalkyl, lower alkyl, lower alkenyl, caralkoxy-lower alkyl, aminoalkyl, lower alkyl1-aminoalkyl1, di(lower-alkyl)-aminoalkyl, hydroxyalkyl, alkoxyalkyl1, thioalkyl , carboxy-lower alkyl or hydrogen, characterized by reacting a compound with the form in 2 3 where R and R are lower alkyl or together with nitrogen- The ^ atom forms a 5- or 6-membered heterocyclic ring which may contain a further heteroatom, i' with a compound of formula R^SH, where R^" has the above-mentioned meaning, in the presence of a weak base. 2. Fremgangsmåte ifølge krav 1,karakterisertved at R"*" er aryl, substituert aryl, aralkyl, cykloalkyl, lavere alkyl, karboksy-lavere-alkyl eller hydrogen.2. Process according to claim 1, characterized in that R"*" is aryl, substituted aryl, aralkyl, cycloalkyl, lower alkyl, carboxy-lower alkyl or hydrogen. 3. Fremgangsmåte ifølge krav 1 eller 2,karakterisert vedat R<1>er aryl.3. Method according to claim 1 or 2, characterized in that R<1> is aryl. 4. Fremgangsmåte ifølge krav 3,karakterisertved at R"1" er f enyl.4. Method according to claim 3, characterized in that R"1" is phenyl. 5. Fremgangsmåte ifølge krav 1 eller 2,karakterisert vedat R"<*>" er klorf enyl, cykloheksyl, benzyl eller karboksymetyl.5. Process according to claim 1 or 2, characterized in that R"<*>" is chlorophenyl, cyclohexyl, benzyl or carboxymethyl. 6. Fremgangsmåte ved fremstilling av farmasøytiske preparater som inneholder en. forbindelse med formel I ifølge definisjonen i krav 1,karakterisert vedat man blander en forbindelse med formel I med ikke-toksiske, terapeutisk for-dragelige faste eller flytende, i og for seg slike preparater vanlige bærere og/eller hjelpestoffer.6. Procedure for the manufacture of pharmaceutical preparations containing a. compound of formula I according to the definition in claim 1, characterized by mixing a compound of formula I with non-toxic, therapeutically tolerable solid or liquid carriers and/or excipients common in such preparations. 7. Farmasøytiske preparaterkarakterisertved et innhold av en forbindelse med formel I ifølge definisjonen i krav 1.7. Pharmaceutical preparations characterized by a content of a compound of formula I according to the definition in claim 1. 8.Forbindelser med formel 8. Compounds with formula hvor R<2>og R<3>er lavere alkyl eller sammen med nitrogen- atomet danner en 5- eller 6-leddet heterocyklisk ring som • kan inneholde et ytterligere heteroatom.where R<2> and R<3> are lower alkyl or together with nitrogen- the atom forms a 5- or 6-membered heterocyclic ring which • may contain a further heteroatom. 9. Forbindelse med formel 9. Connection with formula hvor R<1>betyr aryl, substituert aryl, heteroaryl, aralkyl, cykloalkyl, lavere alkyl, lavere alkenyl, karbalkoksy-lavere-alkyl, aminoalkyl, lavere alkylaminoalky1, di(lavere-alkyl)-aminoalkyl, hydroksyalky1, alkoksyalky1, tioalkoksyalkyl, karboksy-lavere-alkyl eller hydrogenwhere R<1>means aryl, substituted aryl, heteroaryl, aralkyl, cycloalkyl, lower alkyl, lower alkenyl, caralkyloxy-lower alkyl, aminoalkyl, lower alkylaminoalkyl1, di(lower alkyl)aminoalkyl, hydroxyalkyl1, alkoxyalkyl1, thioalkylalkyl, carboxy -lower alkyl or hydrogen 10. Forbindelser ifølge krav 9,karakterisertved at R<1>er aryl, substituert aryl, aralkyl, cykloalkyl, lavere alkyl, karboksy-lavere-alkyl eller hydrogen.10. Compounds according to claim 9, characterized in that R<1> is aryl, substituted aryl, aralkyl, cycloalkyl, lower alkyl, carboxy-lower alkyl or hydrogen. 11. Forbindelser ifølge krav 9 eller 10,karakterisert vedat R^ er aryl.11. Compounds according to claim 9 or 10, characterized in that R 1 is aryl. 12. 1-(fenyltiometyl)-1-dekarboksylasalocid.12. 1-(Phenylthiomethyl)-1-decarboxylasaloside. 13. Forbindelser ifølge krav 9,karakterisertved at R1 er klorfenyl, cykloheksyl, benzyl eller karboksymetyl.13. Compounds according to claim 9, characterized in that R 1 is chlorophenyl, cyclohexyl, benzyl or carboxymethyl.
NO783243A 1977-09-26 1978-09-25 LASALOCID DERIVATIVES. NO783243L (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US83635077A 1977-09-26 1977-09-26
US05/921,645 US4193928A (en) 1977-09-26 1978-07-03 Lasalocid derivatives

Publications (1)

Publication Number Publication Date
NO783243L true NO783243L (en) 1979-03-27

Family

ID=27125862

Family Applications (1)

Application Number Title Priority Date Filing Date
NO783243A NO783243L (en) 1977-09-26 1978-09-25 LASALOCID DERIVATIVES.

Country Status (12)

Country Link
AR (1) AR222312A1 (en)
DE (1) DE2861018D1 (en)
DK (1) DK425278A (en)
ES (1) ES473636A1 (en)
FI (1) FI782934A (en)
GR (1) GR72000B (en)
IL (1) IL55619A0 (en)
IT (1) IT1099191B (en)
MC (1) MC1209A1 (en)
NO (1) NO783243L (en)
NZ (1) NZ188484A (en)
PT (1) PT68588A (en)

Also Published As

Publication number Publication date
AR222312A1 (en) 1981-05-15
GR72000B (en) 1983-08-26
IL55619A0 (en) 1978-12-17
DK425278A (en) 1979-03-27
FI782934A (en) 1979-03-27
IT1099191B (en) 1985-09-18
NZ188484A (en) 1981-05-01
DE2861018D1 (en) 1981-11-26
MC1209A1 (en) 1979-05-18
PT68588A (en) 1978-10-01
ES473636A1 (en) 1979-04-16
IT7828109A0 (en) 1978-09-26

Similar Documents

Publication Publication Date Title
CA1117046A (en) Organic compounds
NO136459B (en)
SU613724A3 (en) Method of obtaining 8-thiomethyl-ergolines or salts thereof
Confalone et al. Stereospecific total synthesis of d-biotin from L (+)-cysteine
Djerassi et al. Studies in organic sulfur compounds. X. 1 The scope of the raney nickel desulfurization of cyclic hemithioketals (1, 3-oxathiolanes and 1, 3-oxathianes) 2
SK135493A3 (en) Pharmacological effective compounds, the method of their preparation and pharmaceutical compositions, which these compounds contain
US4435423A (en) Anti-ulcer composition comprising terpenoid containing two functional groups and method of treating ulcers
KR850000318B1 (en) Process for preparing a bisglucosyl moranoline derivative
Baldwin et al. The synthesis and antimicrobial activity of (1s, 2s)-1-hydroxy-2-[(s)-valylamino] cyclobutane-1-acetic acid (1) and (1s, 2s)-1-hydroxy-2-aminocyclobutane-1-acetic acid (2)
NO143026B (en) ANALOGY PROCEDURE FOR THE PREPARATION OF NEW, THERAPEUTICALLY EFFECTIVE HALOGEN DERIVATIVES
NO783243L (en) LASALOCID DERIVATIVES.
EP0001294B1 (en) Lasalocide derivatives, their preparation and intermediates, and the pharmaceutical preparations containing them
US3896002A (en) Production of brefeldin-A
NO832184L (en) PROCEDURE FOR THE PREPARATION OF NEW TIOFORMAMIDE DERIVATIVES
KR810001323B1 (en) Process for preparing lasalocid derivatives
Ruano et al. Synthesis and conformational analysis of some oxisuran metabolites and their O-methylderivatives
CA2052874A1 (en) Inhibitor of hiv protease
US3641146A (en) Halocolchicine derivatives
US3701787A (en) Preparation of 5,6-dihydro-5-hydroxy-6-propenyl-2-pyrone by fermentation and derivatives thereof
GB2205315A (en) Derivatives of tetrahydrofuran and tetrahydrothiophen
DE69314947T2 (en) 2-AMINO SUGAR MACROLIDE DERIVATIVES
JPH07108909B2 (en) Novel 2 &#39;&#34;-substituted-4-deoxy-thiazolo [5,4-c] -rifamycin SV derivative
NO743174L (en)
US4167571A (en) Thiazoline derivatives
NO813258L (en) NEW 2-AMINOIMIDAZOLES, PROCEDURES FOR THEIR PREPARATION, PHARMACEUTICAL PREPARATIONS CONTAINING THESE, AND THEIR USE