NO861122L - NEW PYRIDONE DERIVATIVES. - Google Patents

NEW PYRIDONE DERIVATIVES.

Info

Publication number
NO861122L
NO861122L NO861122A NO861122A NO861122L NO 861122 L NO861122 L NO 861122L NO 861122 A NO861122 A NO 861122A NO 861122 A NO861122 A NO 861122A NO 861122 L NO861122 L NO 861122L
Authority
NO
Norway
Prior art keywords
formula
pyrrolo
compound
pyrido
pyrid
Prior art date
Application number
NO861122A
Other languages
Norwegian (no)
Inventor
Emile Bisagni
Nguyen Chi Hung
Jean-Pierre Bras
Original Assignee
Sanofi Sa
Centre Nat Rech Scient
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
Application filed by Sanofi Sa, Centre Nat Rech Scient filed Critical Sanofi Sa
Publication of NO861122L publication Critical patent/NO861122L/en

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D471/00Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00
    • C07D471/12Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00 in which the condensed system contains three hetero rings
    • C07D471/14Ortho-condensed systems

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)
  • Pyridine Compounds (AREA)

Description

Oppfinnelsen gjelder nye derivater av 5-H pyrido(3<1>,4<1>:4,5)-pyrrolo(3,2-c)pyrid-l-oner, fremgangsmåte for å fremstille dem og deres bruk som utgangsforbindelser i syntese ved fremstilling av forbindelser som er nyttige i den farmasøytiske industri. The invention relates to new derivatives of 5-H pyrido(3<1>,4<1>:4,5)-pyrrolo(3,2-c)pyrid-l-ones, process for preparing them and their use as starting compounds in synthesis in the production of compounds useful in the pharmaceutical industry.

De nye derivatene i oppfinnelsen tilsvarer den følgendeThe new derivatives in the invention correspond to the following

formelformula

hvori X betegner hydrogen eller klor, R-^ betegner hydrogen, en lavere alkyl- eller benzyl-gruppe. wherein X denotes hydrogen or chlorine, R-^ denotes hydrogen, a lower alkyl or benzyl group.

Oppfinnelsen gjelder også de tautomere former der de eksis-terer . The invention also applies to the tautomeric forms where they exist.

Ved lavere alkylradikal menes en rett eller forgrenet C^~C4~mettet hydrokarbonkjede. By lower alkyl radical is meant a straight or branched C^~C4~ saturated hydrocarbon chain.

Disse derivatene er utgangsforbindelser ved fremstillingThese derivatives are starting compounds during manufacture

av nye forbindelser med formelof new compounds of formula

hvori n betegner et helt tall fra 2 til 4, R_ og R3er begge uavhengig av hverandre hydrogen, en lavere alkyl- eller hydroksy-alkyl-gruppe, og betegner hydrogen eller et lavere alkyl- wherein n represents an integer from 2 to 4, R_ and R3 are both independently hydrogen, a lower alkyl or hydroxyalkyl group, and represent hydrogen or a lower alkyl

radikal .radical.

De nye forbindelser med formel A er utstyrt med interessante antitumoregenskaper, og de er nyttige i terapi. De er emne for den franske anmeldelse nr. 85.04872 registrert på samme dag. The new compounds of formula A are endowed with interesting antitumor properties and are useful in therapy. They are the subject of the French notification No. 85.04872 registered on the same day.

Oppfinnelsen gjelder også fremgangsmåte for fremstillingen av forbindelsene med formel (I) ovenfor,karakterisert ved: a) oksydasjon av 2-(1-hydroksyetyl)-4-klor-l-H-pyrrolo- (3,2-c)pyridin substituert i 1-posisjon, med formel The invention also applies to methods for the preparation of the compounds of formula (I) above, characterized by: a) oxidation of 2-(1-hydroxyethyl)-4-chloro-1-H-pyrrolo- (3,2-c)pyridine substituted in the 1-position, with formula

hvori R<1>^er en lavere alkyl- eller benzyl-gruppe, til 2-acetyl- pyrrolo-pyridin som tilsvarer formelen wherein R<1>^ is a lower alkyl or benzyl group, to 2-acetyl- pyrrolo-pyridine corresponding to the formula

hvor R<1>^er som i formel (II) where R<1>^ is as in formula (II)

b) overføring av forbindelsen med formel (III) ved en Wittig-Horner-reaksjon til 3-(pyrrolo-2-pyridyl)krotonat tilsvarende formel b) transfer of the compound of formula (III) by a Wittig-Horner reaction to 3-(pyrrolo-2-pyridyl)crotonate corresponding to formula

hvori R^ er som i formel (II) wherein R^ is as in formula (II)

c) forsåpning av esteren med formel IV som er dannet, slik at det dannes den tilsvarende 3-^4-klor-l-H-pyrrolo-(3,2-c)2-pyridylJkrotonsyre med formel c) saponification of the ester of formula IV which is formed, so that the corresponding 3-4-chloro-1-H-pyrrolo-(3,2-c)2-pyridyl-crotonic acid of formula

hvor R<1>^er som i formel II where R<1>^ is as in formula II

4°) overføring av forbindelsen med formel V til et azid med formel 4°) transfer of the compound of formula V to an azide of formula

hvori R1-^ er som i formel II, wherein R 1 -^ is as in formula II,

5°) ringdannelsen av azidet med formel VI slik at det dannes en forbindelse med formel I, der X er klor, 5°) the ring formation of the azide of formula VI so that a compound of formula I is formed, where X is chlorine,

hvori R'^ betegner en alkyl- eller benzyl-gruppe, og deretter ettersom tilfellet måtte kreve, 6°) ved hydrogenering, dannelse av forbindelsen med formel r, X betegner hydrogen wherein R'^ denotes an alkyl or benzyl group, and then as the case may require, 6°) by hydrogenation, forming the compound of formula r, X denotes hydrogen

hvori R'^betegner en lavere alkyl- eller benzyl-gruppe. wherein R' represents a lower alkyl or benzyl group.

Denne forbindelsen kan brukes direkte for å oppnå forbindelsene med formel (A) hvori R^betegner en lavere alkylgruppe. Den vil bli debenzylert om det er ønsket for å oppnå intermediatet med formel I hvori X og R-^begge representerer hydrogen; This compound can be used directly to obtain the compounds of formula (A) in which R₁ denotes a lower alkyl group. It will be debenzylated if desired to obtain the intermediate of formula I wherein X and R-^ both represent hydrogen;

med hensikt å fremstille forbindelsene med formel (A) hvori R^betegner hydrogen. with the intention of preparing the compounds of formula (A) in which R^ denotes hydrogen.

Alkoholene med formel II, utgangspunktet i fremstillingen, fremstilles fra 4-klor-l-H-pyrrolo-(3,2-c)-pyridiner substituert i 1-posisjon ved fremgangsmåten som er beskrevet av E. Bisagni et Coll. (Tétrahedron, 39, 1777-1781, (1983)), imidlertid med bruk av dietyleter som oppløsningsmiddel i det tilfelle der substituenten er en benzylgruppe. The alcohols of formula II, the starting point in the preparation, are prepared from 4-chloro-1-H-pyrrolo-(3,2-c)-pyridines substituted in the 1-position by the method described by E. Bisagni et Coll. (Tétrahedron, 39, 1777-1781, (1983)), however with the use of diethyl ether as solvent in the case where the substituent is a benzyl group.

Oksyderingen av alkoholene til acetylerte derivater med formel (III) utføres med mangandioksyd i et klorert oppløsnings-middel, med tilbakeløp. The oxidation of the alcohols to acetylated derivatives of formula (III) is carried out with manganese dioxide in a chlorinated solvent, with reflux.

Overføringen til krotonesteren med formel (IV) skjer vedThe transfer to the croton ester of formula (IV) takes place by

å omsette derivatet med formel (III) i oppløsning i et inert oppløsningsmiddel såsom 1,2-dimetoksyetan, ved en temperatur mellom 0°C og 90°C, med etyldietylfosfonoacetat på forhånd gjort basisk med natriumhydrid. En cis-trans-blanding av etylesteren av krotonsyre med formel (IV) dannes. reacting the derivative of formula (III) in solution in an inert solvent such as 1,2-dimethoxyethane, at a temperature between 0°C and 90°C, with ethyldiethylphosphonoacetate previously made basic with sodium hydride. A cis-trans mixture of the ethyl ester of crotonic acid of formula (IV) is formed.

Denne esteren forsåpes direkte til 3-(4-klor-l-H-pyrrolo-(3, 2-c)-'2-pyrridyl) krotonsyre med formel (V). This ester is saponified directly to 3-(4-chloro-1-H-pyrrolo-(3,2-c)-'2-pyrridyl) crotonic acid of formula (V).

Denne syren overføres til et blandet anhydrid i acetonopp-løsning, ved innvirkning av etylklorkarbonat ved lav temperatur i nærvær av et tertiært alifatisk amin, deretter til et azid med formel (VI) ved innvirkning av natriumnitrid i vandig opp-løsning ved lav temperatur. This acid is transferred to a mixed anhydride in acetone solution, by the action of ethyl chlorocarbonate at low temperature in the presence of a tertiary aliphatic amine, then to an azide of formula (VI) by the action of sodium nitride in aqueous solution at low temperature.

Azidet i oppløsning i et inert oppløsningsmiddel såsom difenyleter gjøres ringformet ved oppvarming til høy temperatur i nærvær av et tertiært alifatisk amin med høyt kokepunkt, såsom tributylamin. Således fremkommer forbindelser med formel (I) hvori X betegner klor og R^ er en lavere alkyl- eller benzyl-gruppe. The azide in solution in an inert solvent such as diphenyl ether is cyclized by heating to a high temperature in the presence of a high boiling tertiary aliphatic amine such as tributylamine. Compounds of formula (I) are thus produced in which X denotes chlorine and R 1 is a lower alkyl or benzyl group.

Ved hydrogenering, ved omgivelsenes temperatur og trykk,During hydrogenation, at ambient temperature and pressure,

i nærvær av en katalysator såsom palladisert trekull, fremkommer forbindelser med formel (I) hvori X betegner hydrogen og R^fremdeles er en lavere alkyl- eller benzyl-gruppe. in the presence of a catalyst such as palladated charcoal, compounds of formula (I) are produced in which X denotes hydrogen and R is still a lower alkyl or benzyl group.

For å oppnå forbindelsene med formel (I) hvori R^betegner hydrogen, utsettes forbindelsene hvori R^betegner en benzyl-gruppe, for debenzylering: denne reaksjonen skjer ved innvirkning av natrium i flytende ammoniakk. To obtain the compounds of formula (I) in which R^ denotes hydrogen, the compounds in which R^ denotes a benzyl group are subjected to debenzylation: this reaction takes place by the action of sodium in liquid ammonia.

De følgende eksempler er gitt som ikke-begrensende eksempel på den foreliggende oppfinnelse. The following examples are given as non-limiting examples of the present invention.

EKSEMPEL 1 EXAMPLE 1

9-Klor-4 ,5-dimetyl-2-H, 5-H-pyrido- ( 3' , 4 11: 4 , 5) -pyrrolo-(3,2-c)-pyrid-l-on 9-Chloro-4,5-dimethyl-2-H,5-H-pyrido-(3',41:4,5)-pyrrolo-(3,2-c)-pyrid-1-one

(X = C1-R1=CH3)-derivat nr. 1(X = C1-R1=CH3) derivative #1

<54>a) l-metyl-2-acetyl-4-klor-l-H-pyrrolo-(3,2-c)-pyridin (derivat med formel (III) <54>a) 1-methyl-2-acetyl-4-chloro-1-H-pyrrolo-(3,2-c)-pyridine (derivative of formula (III)

4-Klor-l-metyl-2-(1-hydroksyetyl)-1-H-pyrrolo-(3,2-c)-pyridin (lg) løses opp i 30 ml kloroform. 8 g Mangandioksyd tilsettes, deretter varmes reaksjonsblandingen under røring, opp til til-bakeløp i 2 2 timer. Etter avkjøling og filtrering dampes opp-løsningen inn under vakuum og resten omkrystalliseres i etanol. 0,780 g av det ønskede produkt fremkommer. 4-Chloro-1-methyl-2-(1-hydroxyethyl)-1-H-pyrrolo-(3,2-c)-pyridine (Ig) is dissolved in 30 ml of chloroform. 8 g of manganese dioxide are added, then the reaction mixture is heated with stirring, up to reflux for 2 2 hours. After cooling and filtering, the solution is evaporated under vacuum and the residue is recrystallized in ethanol. 0.780 g of the desired product is obtained.

Utbytte: 78%, sm.pkt. = 215-216°C.Yield: 78%, sm.pt. = 215-216°C.

Ber. for C1()HgClN20 = C, 57,55; H, 4,32; N, 13,43; Cl, 17,03; Funnet: C, 57,42; H, 4,29; N, 13,31; Cl, 16,73 Pray. for C1(HgClN2O) = C, 57.55; H, 4.32; N, 13.43; Cl, 17.03; Found: C, 57.42; H, 4.29; N, 13.31; Cl, 16.73

H b) 3-[l-metyl-4-klor-l-H-pyrrolo-(3,2-c)-2-pyridyl] krotonat (derivat med formel (IV)- cis-trans-blanding). H b) 3-[1-methyl-4-chloro-1-H-pyrrolo-(3,2-c)-2-pyridyl]crotonate (derivative with formula (IV)- cis-trans mixture).

Til en suspensjon av natriumhydrid (1,34 g, 50% i olje, 28 mmol) i 100 ml 1,2-dimetoksyetan tilsettes 6,3 g (28 mmol) etyldietyl-fosfonacetat i oppløsning i 90 ml 1,2-dimetoksyetan destillert over kalsiumhydrid. Etter 3 timer ved 0°C under røring, tilsettes 4,17 g av det tidligere fremstilte keton med formel (III) i suspensjon i 100 ml 1,2-dimetoksyetan, gradvis. Reaksjonsblandingen får stå 2 timer ved 0°C, 18 timer ved romtempe-ratur, varmes deretter til tilbakeløp i 4 timer. Etter inndamping av oppløsningsmidlet helles blandingen i vann, ekstraheres med metylenklorid og ved at dette dampes bort, samles detønskede produkt i form av en olje. To a suspension of sodium hydride (1.34 g, 50% in oil, 28 mmol) in 100 ml of 1,2-dimethoxyethane is added 6.3 g (28 mmol) of ethyl diethyl phosphonoacetate in solution in 90 ml of distilled 1,2-dimethoxyethane over calcium hydride. After 3 hours at 0°C with stirring, 4.17 g of the previously prepared ketone of formula (III) in suspension in 100 ml of 1,2-dimethoxyethane are gradually added. The reaction mixture is allowed to stand for 2 hours at 0°C, 18 hours at room temperature, then heated to reflux for 4 hours. After evaporation of the solvent, the mixture is poured into water, extracted with methylene chloride and by this being evaporated, the desired product is collected in the form of an oil.

c) 3-l-metyl-4-klor-l-H-pyrrolo-(3,2-c)-2-pyridylkroton-syre (derivat med formel (V) cis-trans-blanding) c) 3-1-methyl-4-chloro-1-H-pyrrolo-(3,2-c)-2-pyridylcrotonic acid (derivative of formula (V) cis-trans mixture)

Esteren som ble dannet i det foregående trinn løses opp i 50The ester formed in the previous step is dissolved in 50

ml etanol avkjølt til 0°C. Deretter tilsettes sakte en oppløs-ning av natriumhydroksyd (4,57 g, 4 ekvivalenter) i 5 ml vann og 50 ml alkohol avkjølt til 0°C. Etter 48 timer ved 0°C, dampes etanolen bort under redusert trykk for å unngå oppvarming, og resten, løst opp i 200 ml isvann, ekstraheres tre ganger med 100 ml metylenklorid. Vannfasen surgjøres med eddiksyre og røres 1 time ved 0°C. Den ønskede forbindelse, 4,7 g, samles ved filtrering. ml of ethanol cooled to 0°C. A solution of sodium hydroxide (4.57 g, 4 equivalents) in 5 ml of water and 50 ml of alcohol cooled to 0°C is then slowly added. After 48 hours at 0°C, the ethanol is evaporated under reduced pressure to avoid heating, and the residue, dissolved in 200 ml of ice water, is extracted three times with 100 ml of methylene chloride. The water phase is acidified with acetic acid and stirred for 1 hour at 0°C. The desired compound, 4.7 g, is collected by filtration.

Utbytte: 9 3,8% - Sm.pkt. = 244°C-246°C med dekomponering Ber.for ci2HnclN2°2:C'57'50'H'4'42?N>11,17; Cl, 14,14 Funnet: C, 57,16; H, 4,14; N, 11,01; Cl, 14,16. Dividend: 9 3.8% - Sm.pt. = 244°C-246°C with decomposition Ber.for ci2HnclN2°2:C'57'50'H'4'42?N>11.17; Cl, 14.14 Found: C, 57.16; H, 4.14; N, 11.01; Cl, 14,16.

NMR: ( (CD3) 2S0) ; 5: 3,42 (d, 3H, CH3~C=) ; 3,65 (s,3H, N-CH3) ; 5,31 og 5,48 (2s, 1H-C=CH- cis-trans-blanding); 6,44(s, 1H, H-3); 7,35(d, 1H, H7J6_7= 5,5Hz); 7,83(d,lH, H-6). NMR: ((CD 3 ) 2 SO ); 5: 3.42 (d, 3H, CH3~C=); 3.65 (s, 3H, N-CH 3 ); 5.31 and 5.48 (2s, 1H-C=CH-cis-trans mixture); 6.44(s, 1H, H-3); 7.35(d, 1H, H7J6_7= 5.5Hz); 7.83 (d, 1H, H-6).

x d) azidderivat med formel (VI)x d) azide derivative of formula (VI)

Oppløsningen av syren som tidligere var dannet (4,7g,The solution of the acid previously formed (4.7g,

18 mmol) i 30 ml aceton og 2,9 ml trietylamin avkjøles til18 mmol) in 30 ml of acetone and 2.9 ml of triethylamine is cooled to

-10°C og sakte tilsettes en oppløsning av 2 ml etylklorkarbonat i 30 ml aceton, mens temperaturen holdes på -10°C. Etter 1 times røring ved den samme temperatur, tilsettes natriumnitrid (1,77 g) oppløst i et minimum av vann, gradvis, og blandingen som holdes under -5°C røres i 2 timer. Acetonet dampes bort under redusert trykk mens vannbadet holdes under 10°C, resten taes opp igjen i 200 ml vann og ekstraheres umiddelbart med metylenklorid. -10°C and a solution of 2 ml of ethyl chlorocarbonate in 30 ml of acetone is slowly added, while the temperature is kept at -10°C. After stirring for 1 hour at the same temperature, sodium nitride (1.77 g) dissolved in a minimum of water is added gradually, and the mixture, which is kept below -5°C, is stirred for 2 hours. The acetone is evaporated under reduced pressure while the water bath is kept below 10°C, the residue is taken up again in 200 ml of water and extracted immediately with methylene chloride.

Den organiske fasen tørres over natriumsulfat og filtreres deretter. Ved inndamping til tørrhet under redusert trykk ved vanlig temperatur fremkommer det ønskede derivat. The organic phase is dried over sodium sulfate and then filtered. Evaporation to dryness under reduced pressure at ordinary temperature gives the desired derivative.

M e) 4,5-Dimetyl-9-klor-2-H,5-H-pyrido-(3',4' :4,5)-pyrrolo-(3,2-c)-pyrid-l-on (derivat med formel (I)) M e) 4,5-Dimethyl-9-chloro-2-H,5-H-pyrido-(3',4':4,5)-pyrrolo-(3,2-c)-pyrid-1-one (derivative of formula (I))

Azidet som er dannet i det foregående trinn, løses opp i difenyleter varmet opp til 35°C-40°C og tilsettes i små porsjo-ner til en blanding av 80 ml difenyleter og 4,4 ml tributylamin, oppvarmet og holdt ved 2 30-235°C under god røring. Etter endt tilsetning holdes blandingen i 10 minutter ved 230-240°C, deretter avkjøles den og tilsettes 400 ml lettbensin. The azide formed in the previous step is dissolved in diphenyl ether heated to 35°C-40°C and added in small portions to a mixture of 80 ml of diphenyl ether and 4.4 ml of tributylamine, heated and kept at 2 30 -235°C with good stirring. After the addition is complete, the mixture is kept for 10 minutes at 230-240°C, then it is cooled and 400 ml light petrol is added.

Det faste stoff som er dannet, filtreres fra, vaskes med lettbensin og taes opp igjen i 30 ml kokende etanol. The solid that is formed is filtered off, washed with light petrol and taken up again in 30 ml of boiling ethanol.

Produktet som er uoppløselig i kald tilstand, filtreres fra og tørres og gir farveløse nåler. The product, which is insoluble in the cold state, is filtered off and dried to give colorless needles.

På denne måten samles 2,2 g av det ønskede produkt med et utbytte på 4 7% med hensyn til syren med formel (V). In this way, 2.2 g of the desired product are collected with a yield of 47% with respect to the acid of formula (V).

Smelting: usmeltelig ved 260°C<*>.Melting: infusible at 260°C<*>.

Ber. for C12H10<C>lN3O:C,58,19; H, 4,07; N, 16,96; Cl, 14,34; Funnet: C, 57,95; H, 3,86; N, 16,75; Cl, 14,34 Pray. for C12H10<C>1N3O: C, 58.19; H, 4.07; N, 16.96; Cl, 14.34; Found: C, 57.95; H, 3.86; N, 16.75; Cl, 14.34

NMR: H1((CD3)2<S>O); 6: l,56(s,3H, CH3~4); 3,13(s, 3H, N-CH3); 6,24(s, 1H, H-3); 6,73(d,lH, H-6, J6_?=6Hz); 7,26(d,lH,H-7); 10,36(s, 1H, N-H). NMR: H1((CD3)2<S>O); 6: 1.56 (s, 3H, CH 3 ~ 4 ); 3.13(s, 3H, N-CH3); 6.24(s, 1H, H-3); 6.73(d, 1H, H-6, J6_?=6Hz); 7.26 (d,1H,H-7); 10.36(s, 1H, N-H).

EKSEMPEL 2 EXAMPLE 2

9-Klor-4-metyl-5-benzyl-2-H,5-H-pyrido(3',4<*>:4,5)pyrrolo-(3,2-c)-pyrid-l-on (X = Cl, R = benzyl) derivat nr. 2. 9-Chloro-4-methyl-5-benzyl-2-H,5-H-pyrido(3',4<*>:4,5)pyrrolo-(3,2-c)-pyrid-1-one ( X = Cl, R = benzyl) derivative #2.

K a) l-Benzyl-2-acetyl-4-klor-l-H-pyrrolo(3,2-c)-pyridin (derivat med formel (III)) K a) 1-Benzyl-2-acetyl-4-chloro-1-H-pyrrolo(3,2-c)-pyridine (derivative of formula (III))

11,3 g l-benzyl-2-(1-hydroksyetyl)-4-klor-l-H-pyrrolo-(3,2-c)pyridin løses opp i 600 ml kokende kloroform. Gradvis tilsettes 120 g mangandioksyd og blandingen varmes til tilbake-løp i 18 timer under røring. Etter tilsetning av 14 g mangandioksyd og 2 timers oppvarming med tilbakeløp til alkoholen er forsvunnet, filtreres mangandioksydet fra, vaskes med varm kloroform og oppløsningsmidlet dampes bort. Ved omkrystalli-sering av resten i etanol, oppnås 8,6 g av det ønskede derivat. Utbytte: 76,6%, sm.pkt. = 136°C. 11.3 g of 1-benzyl-2-(1-hydroxyethyl)-4-chloro-1-H-pyrrolo-(3,2-c)pyridine are dissolved in 600 ml of boiling chloroform. 120 g of manganese dioxide are gradually added and the mixture is heated to reflux for 18 hours while stirring. After adding 14 g of manganese dioxide and heating at reflux for 2 hours until the alcohol has disappeared, the manganese dioxide is filtered off, washed with hot chloroform and the solvent is evaporated. By recrystallization of the residue in ethanol, 8.6 g of the desired derivative is obtained. Yield: 76.6%, sm.pt. = 136°C.

Ber. for C,,H,oClN0„: C, 67,49; H 4,6; N, 9,84; Cl, 12,45Pray. for C 1 , H 2 oClN 0 2 : C, 67.49; H 4.6; N, 9.84; Cl, 12.45

lb 1j zlb 1j z

Funnet: C, 67,21; H, 4,39; N, 12; Cl, 12,75 Found: C, 67.21; H, 4.39; N, 12; Cl, 12.75

NMRE1((CD3)2SO), : 2,68(s, 3H, -CO-CH3); 5,88(s, 2H, -CH2~); NMRE1((CD3)2SO), : 2.68(s, 3H, -CO-CH3); 5.88 (s, 2H, -CH 2 ~ );

7,05-7,32(m, 5H, -6gH5); 7,66(q, 1H, H-7, J3_ 7= 0,8Hz); 7.05-7.32 (m, 5H, -6gH5); 7.66(q, 1H, H-7, J3_7= 0.8Hz);

7,76(d, 1H, H-3); 8,17(d, 1H, H-6) 7.76 (d, 1H, H-3); 8.17(d, 1H, H-6)

K b) 1-(Benzyl-4-klor-l-H-pyrrolo-(3,2-c)-2-pyridylkroton-syre (derivat med formél (V)) K b) 1-(Benzyl-4-chloro-1-H-pyrrolo-(3,2-c)-2-pyridylcrotonic acid (derivative with formula (V))

På samme måte som i eksempel 1, tilsettes det til en suspensjon av natriumhydrid (2,36 g 50% i olje) i 50 ml dimetoksyetan, 12,12 g (54 mmol) etyldietylfosfonoacetat i oppløsning i 90 ml dimetoksyetan og 7 g (25 mmol) av forbindelsen med formel (III) som tidligere er dannet, i oppløsning i 160 ml dimetoksyetan, og reaksjonsblandingen får stå ved omgivelsenes temperatur i 48 timer. In the same way as in example 1, to a suspension of sodium hydride (2.36 g 50% in oil) in 50 ml of dimethoxyethane, 12.12 g (54 mmol) of ethyl diethylphosphonoacetate in solution in 90 ml of dimethoxyethane and 7 g (25 mmol) of the compound of formula (III) which was previously formed, in solution in 160 ml of dimethoxyethane, and the reaction mixture is allowed to stand at ambient temperature for 48 hours.

Etter at oppløsningsmidlet er dampet bort, dekomponering med etanol, ekstraksjon med metylenklorid, forsåpning av residuet fra inndampingen med overskudd av kaliumhydroksyd (5,6 g) After the solvent has evaporated, decomposition with ethanol, extraction with methylene chloride, saponification of the residue from the evaporation with excess potassium hydroxide (5.6 g)

i vandig alkoholmedium og surgjøring med eddiksyre, filtreres det faste stoff som fremkommer fra og tørres og gir 7,9 g (98%) av den ønskede syre, i cis-trans-blanding. in aqueous alcohol medium and acidifying with acetic acid, the resulting solid is filtered and dried to give 7.9 g (98%) of the desired acid, in a cis-trans mixture.

Sm.pkt. 170°C.Sm.pt. 170°C.

Ber.for C18H15C1N2°2: C'66' 16' H'4'63'' N'8'57?Cl, 10,85 Funnet: C, 65,86; H, 4,81; N, 8,35; Cl, 11,08 Ber. for C18H15C1N2°2: C'66' 16' H'4'63'' N'8'57?Cl, 10.85 Found: C, 65.86; H, 4.81; N, 8.35; Cl, 11.08

<*>c) 9-Klor-4-metyl-5-benzyl-2-H,5-H-pyrido-(3<1>,4':4,5)-pyrrolo-(3,2-c)-pyrid-l-on (derivat med formel (I)) <*>c) 9-Chloro-4-methyl-5-benzyl-2-H,5-H-pyrido-(3<1>,4':4,5)-pyrrolo-(3,2-c) -pyrid-l-one (derivative of formula (I))

Denne forbindelse ble fremstilt via azidet ved fremgangsmåten beskrevet i eksempel 1. This compound was prepared via the azide by the method described in example 1.

Ved å gå ut fra 7,9 g av syren med formel (V), ble det opp-nådd etter rensing ved koking i dioksan, 2,8 g farveløse mikrokrystaller av derivatet med formel (I). Starting from 7.9 g of the acid of formula (V), 2.8 g of colorless microcrystals of the derivative of formula (I) were obtained after purification by boiling in dioxane.

Utbytte: 35,7%, sm.pkt. = usmeltelig til 260°C.Dividend: 35.7%, sm.pt. = infusible to 260°C.

Ber. for ClgH14ClN30: C, 66,77; H, 4,36; N, 12,98; Cl, 10,98 Funnet: 66,52; H, 4,57; N, 12,69; Cl, 10,69 Pray. for ClgH 14 ClN 3 O: C, 66.77; H, 4.36; N, 12.98; Cl, 10.98 Found: 66.52; H, 4.57; N, 12.69; Cl, 10.69

EKSEMPEL 3 EXAMPLE 3

4,5-Dimetyl-2-H,5-H-pyrido-(3',4':4,5)-pyrrolo-(3,2-c)-pyrid-l-on (X = H, R-^CH^) derivat nr. 3 4,5-Dimethyl-2-H,5-H-pyrido-(3',4':4,5)-pyrrolo-(3,2-c)-pyrid-1-one (X = H, R- ^CH^) derivative No. 3

Derivat nr. 1, 9-klor-4 , 5-dimetyl-2-H, 5-H-pyrido- ( 3 1 ,4 ':4,5) - pyrrolo-(3,2-c)-pyrid-l-on (X = H, R^=CH3) (10 mmol) anbringes i en trehalset kolbe på 1 liter, som inneholder 500 ml etanol, Derivative No. 1, 9-chloro-4,5-dimethyl-2-H,5-H-pyrido-(31,4':4,5)-pyrrolo-(3,2-c)-pyrid-1 -on (X = H, R^=CH3) (10 mmol) is placed in a three-necked 1 liter flask containing 500 ml of ethanol,

7,5 ml trietylamin og 700 mg 10% palladisert trekull, og røres under hydrogenatmosfære ved normalt trykk og ved omgivelsenes temperatur i omtrent 2 timer. Katalysatoren filtreres fra, 7.5 ml of triethylamine and 700 mg of 10% palladium charcoal, and stirred under a hydrogen atmosphere at normal pressure and at ambient temperature for approximately 2 hours. The catalyst is filtered off,

vaskes flere ganger med kokende etanol og oppløsningsmidlet dampes bort. Resten taes opp igjen i 200 ml IN natriumhydroksyd-oppløsning, filtreres kald og omkrystalliseres i etanol og gir farveløse mikrokrystaller av den ønskede hydratiserte forbindelse . washed several times with boiling ethanol and the solvent evaporated. The residue is taken up again in 200 ml of 1N sodium hydroxide solution, filtered cold and recrystallized in ethanol to give colorless microcrystals of the desired hydrated compound.

Utbytte: 88%, sm.pkt. usmeltelig til 260°C.Yield: 88%, sm.pt. infusible to 260°C.

Ber. for<C>12H11<N>3<O>.H20 = C, 62,34; H, 5,63; N, 18,18; Pray. for <C>12H11<N>3<O>.H2O = C, 62.34; H, 5.63; N, 18.18;

Funnet: C, 62,37; H, 18,07Found: C, 62.37; H, 18.07

NMR: E1 ((CD3)2SO); 6: 2,57(s, 3H, CH3~4); 4,14(s, 3H, N-CH3); 7,23(s, 1H, H-3); 7,7(d, 1H, H-6, J6_7= 6Hz); 8,49(d, 1H, H-7); 9,21(s, 1H, NH-2); 9,36 (s, 1H, H-9) NMR: E1 ((CD3)2SO); 6: 2.57(s, 3H, CH3~4); 4.14(s, 3H, N-CH3); 7.23(s, 1H, H-3); 7.7(d, 1H, H-6, J6_7 = 6Hz); 8.49 (d, 1H, H-7); 9.21(s, 1H, NH-2); 9.36 (p, 1H, H-9)

EKSEMPEL 4EXAMPLE 4

4-Metyl-5-benzyl-2-H,5-H-pyrido-(31,4': 4,5)-pyrrolo-(3,2-c)-pyrid-l-on (X = H, R = benzyl) derivat nr. 4 4-Methyl-5-benzyl-2-H,5-H-pyrido-(31,4':4,5)-pyrrolo-(3,2-c)-pyrid-1-one (X = H, R = benzyl) derivative No. 4

Denne forbindelsen ble fremstilt fra derivat nr. 2, 9-klor-4-metyl-5-benzyl-2-H,5-H-pyrido-(3<1>,4<1>:4,5)-pyrrolo-(3,2-c)-pyrid-l-on, ved den samme fremgangsmåte som i eksempel 3. Utbytte: 92%, sm.pkt. usmeltelig til 260°C. This compound was prepared from derivative No. 2, 9-chloro-4-methyl-5-benzyl-2-H,5-H-pyrido-(3<1>,4<1>:4,5)-pyrrolo- (3,2-c)-pyrid-1-one, by the same method as in example 3. Yield: 92%, m.p. infusible to 260°C.

Ber.for Cl<gH>15<N>3<0>.1,5 H20 : C, 68,35; H, 5,7; N, 13,29 Ber. for Cl<gH>15<N>3<O>.1.5 H2O: C, 68.35; H, 5.7; N, 13.29

Funnet: C, 68,13; H, 6,24; N, 12,75 Found: C, 68.13; H, 6.24; N, 12.75

NMR: H1((CD3)2SO) ; 6: 2,3 (s, 3H, CH3) ; 5,88 (s, 2H, CH2) ; 6,88-7,3(m, 5H, -C6H5); 7,63 (q, 1H, H-6, Jg_7=5,6 Hz, Jg_9=0, 9Hz); 8,43(d, 1H, H-7); 9,41 (d, 1H, H-9); ll,43(s, lH,NH-2) NMR: H1((CD3)2SO) ; 6: 2.3 (s, 3H, CH3); 5.88 (s, 2H, CH 2 ); 6.88-7.3 (m, 5H, -C 6 H 5 ); 7.63 (q, 1H, H-6, Jg_7=5.6Hz, Jg_9=0.9Hz); 8.43(d, 1H, H-7); 9.41 (d, 1H, H-9); 11.43(s, 1H,NH-2)

EKSEMPEL 5 EXAMPLE 5

4-Mety1-2-H,5-H-pyrido-(3<1>,4<1>:4,5)-pyrrolo-(3,2-c)-pyrid-l-on (X = H, R1= H) derivat nr. 5. 4-Methy1-2-H,5-H-pyrido-(3<1>,4<1>:4,5)-pyrrolo-(3,2-c)-pyrid-1-one (X = H, R1= H) derivative No. 5.

I en trehalset kolbe på 500 ml nedsenket i et kjølebad ved In a three-necked flask of 500 ml immersed in a cooling bath at

-70°C og ovenpå den anbragt en spiral med aceton og tørris, utstyrt med magnetrører, fylles gradvis 250 ml flytende ammoniakk og deretter tilsettes 1,18 g av derivat nr. 4, 4-metyl-5-benzyl-2-H,5-H-pyrido-(3<1>,4':4,5)-pyrrolo-(3,2-c)-pyrid-l-on. Det hele blir rørt ved -34°C, natrium tilsettes i små stykker inntil den blå farven holder seg mer enn 30 minutter etter siste tilsetning. Etter ytterligere én time ved ammoniakks tilbakeløps-temperatur, blir blandingen avfarvet ved tilsetning av ammonium-klorid og får stå for å tillate ammoniakken å fordampe. Det faste residu taes opp igjen i omkring 30 ml isvann, filtreres -70°C and on top of it a spiral with acetone and dry ice, equipped with a magnetic stirrer, is gradually filled with 250 ml of liquid ammonia and then 1.18 g of derivative no. 4, 4-methyl-5-benzyl-2-H, is added. 5-H-pyrido-(3<1>,4':4,5)-pyrrolo-(3,2-c)-pyrid-1-one. The whole thing is stirred at -34°C, sodium is added in small pieces until the blue color persists more than 30 minutes after the last addition. After an additional hour at the ammonia reflux temperature, the mixture is decolorized by the addition of ammonium chloride and allowed to stand to allow the ammonia to evaporate. The solid residue is taken up again in about 30 ml of ice water, filtered

og omkrystalliseres i etanol. 500 mg farveløse mikrokrystaller and recrystallized in ethanol. 500 mg colorless microcrystals

samles.gather.

Utbytte: 56,4%, sm.pkt. = 270°C.Yield: 56.4%, sm.pt. = 270°C.

Ber.for Ci;LHgN3O.H20 : C, 60,82; H, 5,10; N, 19,35Ber. for Ci;LHgN 3 O.H 2 O : C, 60.82; H, 5.10; Sun, 19.35

Funnet: C, 60,81; H, 5,11; N, 19,43 Found: C, 60.81; H, 5.11; N, 19.43

NMR H1((CD3)2SO) ; 6: 2,29(d, 3H, CH3"4): 7,21(d, 1H, H-3, J3-CH3-4 = 1Hz); 7,49(q, 1H, H-6, J6_?=5,8 Hz, Jg_9=lHz); 8,38(d, 1H, H-7); 9,26(d, 1H, H-9); ll,10(s, 1H, NH-5); NMR H1((CD3)2SO) ; 6: 2.29(d, 3H, CH3"4): 7.21(d, 1H, H-3, J3-CH3-4 = 1Hz); 7.49(q, 1H, H-6, J6_? =5.8 Hz, Jg_9=1Hz); 8.38(d, 1H, H-7); 9.26(d, 1H, H-9); 11.10(s, 1H, NH-5);

12(s, 1H, NH-2)12(s, 1H, NH-2)

Derivatene som nettopp er beskrevet, tjener etter klorering i 1-posisjon som utgangsforbindelser ved fremstilling av forbindelser med formel A, i henhold til følgende reaksjonsdiagram: The derivatives just described serve, after chlorination in the 1-position, as starting compounds in the preparation of compounds of formula A, according to the following reaction diagram:

For å illustrere fremgangsmåten i oppfinnelsen, er det nedenfor beskrevet fremstillingen av (a-dietylamino)-l-propylamin-4,5-dimetyl-5-H-pyrido- [3',41:4,5] -pyrrolo-[3,2-c]-pyridin (forbindelse med formel A) ut fra 4,5-dimetyl-2-H,5-H-pyrido-C.3 1 , 4 ': 4 , 5]-pyrrolo- (3 , 2-c) -pyrid-l-on (derivat nr. 3 med formel To illustrate the method of the invention, the preparation of (α-diethylamino)-1-propylamine-4,5-dimethyl-5-H-pyrido-[3',41:4,5]-pyrrolo-[3 ,2-c]-pyridine (compound of formula A) from 4,5-dimethyl-2-H,5-H-pyrido-C.3 1 , 4 ': 4 , 5]-pyrrolo-(3 , 2 -c) -pyrid-l-one (derivative no. 3 with formula

I) IN)

500 mg av derivatet nr. 3 (2,5 mmol) og 25 ml av dikloridet av 500 mg of derivative No. 3 (2.5 mmol) and 25 ml of the dichloride of

fenylfosfonsyre varmes på et oljebad ved 170°C under røring i 68 timer og overskuddet av diklorid dampes bort ved 130°C ved 2 mm Hg. 12 0 ml vann tilsettes til resten og blandingen varmes til koking og filtreres deretter. Det uoppløselige vaskes med 40 ml kokende vann og filtratet gjøres alkalisk og kaldt ved tilsetning av ammoniakk. Bunnfallet som dannes filtreres fra, tørres og omkrystalliseres i xylen og gir 450 mg farveløse mikrokrystaller av l-klor-4-metyl-5-H-pyrido-[3',4<1>:4,5]-pyrrolo- [3,2-c]-pyridin. phenylphosphonic acid is heated in an oil bath at 170°C with stirring for 68 hours and the excess of dichloride is evaporated off at 130°C at 2 mm Hg. 120 ml of water is added to the residue and the mixture is heated to boiling and then filtered. The insoluble matter is washed with 40 ml of boiling water and the filtrate is made alkaline and cold by adding ammonia. The precipitate that forms is filtered off, dried and recrystallized in xylene to give 450 mg of colorless microcrystals of 1-chloro-4-methyl-5-H-pyrido-[3',4<1>:4,5]-pyrrolo- [3 ,2-c]-pyridine.

Utbytte: 82,3%; sm.pkt. = usmeltelig til 270°C .Yield: 82.3%; sm.pt. = infusible to 270°C.

250 mg av forbindelsen (1,02 mmol) i 15 ml dietylaminopropylamin varmes opp under røring i. 24 timer og overskuddet av amin dampes bort på vannbad ved 80°C under 1 mm Hg trykk. Residuet taes opp igjen i 100 ml IN natriumhydroksyd-oppløsning og ekstraheres med metylenklorid. Etter inndamping, kromatograferes produktet på en aluminiumoksydkolonne med utvasking med blandingen metylenklorid-etanol 9/1. Fraksjonene som inneholder det rene hovedprodukt samles og dampes inn til tørrhet. Resten taes opp igjen i etanol mettet med saltsyre og inndampes igjen til tørrhet. Den faste resten vaskes to ganger med 10 ml aceton, krystalliserer i n-butanol, filtreres, vaskes tre ganger med 10 ml aceton, taes opp igjen i 10 ml av det samme oppløsnings-middel, filtreres og tørres, og gir 340 mg farveløse mikrokrystaller som tilsvarer trihydrogenkloridtrihydrat av den ønskede forbindelse med formel A. Denne forbindelsen svetter mot 130°C og sublimerer fra 200°C. 250 mg of the compound (1.02 mmol) in 15 ml of diethylaminopropylamine are heated with stirring for 24 hours and the excess of amine is evaporated on a water bath at 80°C under 1 mm Hg pressure. The residue is taken up again in 100 ml of IN sodium hydroxide solution and extracted with methylene chloride. After evaporation, the product is chromatographed on an alumina column with elution with the mixture methylene chloride-ethanol 9/1. The fractions containing the pure main product are collected and evaporated to dryness. The residue is taken up again in ethanol saturated with hydrochloric acid and evaporated again to dryness. The solid residue is washed twice with 10 ml of acetone, crystallized in n-butanol, filtered, washed three times with 10 ml of acetone, taken up again in 10 ml of the same solvent, filtered and dried, yielding 340 mg of colorless microcrystals which corresponds to trihydrogen chloride trihydrate of the desired compound of formula A. This compound sweats towards 130°C and sublimes from 200°C.

Ber.for CigH27N5.3HC1.3H20:C, 46,73; H, 7,37; N, 14,33; Cl,21,80. Funnet: C, 46,48; H, 7,81; N, 13,88; Cl, 22,08. Ber. for C 12 H 27 N 5 .3HCl .3H 2 O: C, 46.73; H, 7.37; N, 14.33; Cl, 21.80. Found: C, 46.48; H, 7.81; N, 13.88; Cl, 22.08.

Claims (7)

1. Synteseutgangsforbindelser, karakterisert ved formelen 1. Synthesis starting compounds, characterized by the formula hvori X betegner hydrogen eller klor, R, betegner hydrogen, en lavere alkylgruppe eller en benzylgruppe, samt tautomere former om slike finnes.in which X denotes hydrogen or chlorine, R denotes hydrogen, a lower alkyl group or a benzyl group, as well as tautomeric forms if such exist. 2. Forbindelse ifølge krav 1, karakterisert ved at den er 9-klor-4 , 5-di-metyl-2-H, 5-H-pyrido- (3 1 , 4 * : 4 , 5) - pyrrolo-(3,2-c)-pyrid-l-on.2. Compound according to claim 1, characterized in that it is 9-chloro-4,5-dimethyl-2-H,5-H-pyrido-(3 1 , 4 * : 4 , 5)-pyrrolo-(3 ,2-c)-pyrid-1-one. 3. Forbindelse ifølge krav 1, karakterisert ved at den er 9-klor-4-metyl-5-benzyl-2-H,5-H-pyrido-(3',4 <1> :4,5)-pyrrolo-(3,2-c)-pyrid-l-on.3. Compound according to claim 1, characterized in that it is 9-chloro-4-methyl-5-benzyl-2-H,5-H-pyrido-(3',4<1>:4,5)-pyrrolo- (3,2-c)-pyrid-1-one. 4. Forbindelse ifølge krav 1, karakterisert ved at den er 4,5-dimetyl-2-H,5-H-pyrido-(3 <1> ,4':4,5)-pyrrolo-(3,2-c)-pyrid-l-on.4. Compound according to claim 1, characterized in that it is 4,5-dimethyl-2-H,5-H-pyrido-(3 <1> ,4':4,5)-pyrrolo-(3,2-c )-pyrid-1-one. 5. Forbindelse ifølge krav 1, karakterisert ved at den er 4-metyl-5-benzyl-2-H,5-H-pyrido-(3',4':4,5)-pyrrolo-(3,2-c)-pyrid-l-on.5. Compound according to claim 1, characterized in that it is 4-methyl-5-benzyl-2-H,5-H-pyrido-(3',4':4,5)-pyrrolo-(3,2-c )-pyrid-1-one. 6. Forbindelse ifølge krav 1, karakterisert ved at den er 4-metyl-2-H,5-H-pyrido-(3',4 <1> :4,5)-pyrrolo-(3,2-c)-pyrid-l-on.6. Compound according to claim 1, characterized in that it is 4-methyl-2-H,5-H-pyrido-(3',4<1>:4,5)-pyrrolo-(3,2-c)- pyrid-l-one. 7. Fremgangsmåte for fremstilling av forbindelsene med formel (I), karakterisert veda) oksydasjon av 2-(1-hydroksy-l-etyl)-4-klor-l-H-pyrrolo-(3,2-c)-pyridin substituert i 1-posisjon, med formel hvori R-^ er en lavere alkyl- eller benzyl-gruppe, til den tilsvarende 2-acetyl-pyrrolo-pyridin med formel 7. Process for the preparation of the compounds of formula (I), characterized by) oxidation of 2-(1-hydroxy-1-ethyl)-4-chloro-1-H-pyrrolo-(3,2-c)-pyridine substituted in 1 -position, of formula in which R-^ is a lower alkyl or benzyl group, to the corresponding 2-acetyl-pyrrolo-pyridine of formula hvori R'^ er som i formel II b) overføring av denne forbindelsen ved Wittig-Horner-reaksjon til tilsvarende 3-(pyrrolo-2-pyridyl)krotonester med formel wherein R'^ is as in formula II b) transfer of this compound by Wittig-Horner reaction to corresponding 3-(pyrrolo-2-pyridyl)crotone esters of formula hvori R'-^ er som i formel II c) forsåpning av den fremkomne ester med formel IV for å danne den tilsvarende syre med formel wherein R'-^ is as in formula II c) saponification of the resulting ester of formula IV to form the corresponding acid of formula hvori R <1>^ er som i formel II d) overføring av denne forbindelse med formel V til det tilsvarende azid med formel wherein R<1>^ is as in formula II d) transferring this compound of formula V to it corresponding azide of formula hvori R <1>^ er som i formel II, e) ringdanning i azidet med formel VI for å få forbindel sen med formel I, X er klor, wherein R<1>^ is as in formula II, e) ring formation in the azide of formula VI to obtain the compound then of formula I, X is chlorine, hvori R^ betegner et lavere alkyl- eller benzyl-radikal, deretter, ettersom tilfellet måtte kreve f) ved hydrogenering, dannelse av forbindelsen med formel I, X betegner hydrogen, wherein R 1 denotes a lower alkyl or benzyl radical, respectively, as the case may require f) by hydrogenation, formation of the compound of formula I, X denote hydrogen, hvori R <1>^ betegner en lavere alkyl- eller benzyl-gruppe og, som tilfellet måtte kreve, g) ved debenzylering, dannelse av forbindelsen med formel (I) hvori X og R-^ betegner hydrogen. wherein R<1>^ denotes a lower alkyl or benzyl group and, as the case may require, g) by debenzylation, formation of the compound of formula (I) in which X and R-^ denote hydrogen.
NO861122A 1985-03-22 1986-03-21 NEW PYRIDONE DERIVATIVES. NO861122L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8504870A FR2579206B1 (en) 1985-03-22 1985-03-22 NOVEL 5-H PYRIDO (3 ', 4': 4,5) (PYRROLO 3,2-C) PYRIDONES, THEIR PREPARATION PROCESS AND THEIR APPLICATION AS SYNTHESIS INTERMEDIATES

Publications (1)

Publication Number Publication Date
NO861122L true NO861122L (en) 1986-09-23

Family

ID=9317787

Family Applications (1)

Application Number Title Priority Date Filing Date
NO861122A NO861122L (en) 1985-03-22 1986-03-21 NEW PYRIDONE DERIVATIVES.

Country Status (10)

Country Link
EP (1) EP0199618A1 (en)
JP (1) JPS61267581A (en)
KR (1) KR860007260A (en)
DK (1) DK133086A (en)
FI (1) FI861215A (en)
FR (1) FR2579206B1 (en)
GR (1) GR860749B (en)
IL (1) IL78162A0 (en)
NO (1) NO861122L (en)
PT (1) PT82242B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2061891T3 (en) * 1988-11-16 1994-12-16 Nippon Kayaku Kk CRYSTALS OF ETHOPOSIDE-2-DIMETHYLAMINE COMPOSITE DIHYDROCHLORIDE DIHYDRATE AND A PROCEDURE FOR ITS PRODUCTION.
WO2005111042A1 (en) 2004-05-03 2005-11-24 Janssen Pharmaceutica N.V. Novel indole derivatives as selective androgen receptor modulators (sarms)

Also Published As

Publication number Publication date
DK133086A (en) 1986-09-23
JPS61267581A (en) 1986-11-27
PT82242A (en) 1986-04-01
IL78162A0 (en) 1986-07-31
FI861215A0 (en) 1986-03-21
KR860007260A (en) 1986-10-10
FR2579206A1 (en) 1986-09-26
PT82242B (en) 1987-08-17
EP0199618A1 (en) 1986-10-29
DK133086D0 (en) 1986-03-21
FI861215A (en) 1986-09-23
FR2579206B1 (en) 1987-05-07
GR860749B (en) 1986-07-21

Similar Documents

Publication Publication Date Title
DE69723846T2 (en) Process for the preparation of sildenafil
SU451244A3 (en) The method of obtaining derivatives of phenylimidazolyl
DK154563B (en) PROCEDURE FOR PREPARING A RACEMIC OR OPTICAL ACTIVE (+) - THIOLACTON OR (+) - BIOTON
JPH0236595B2 (en)
NO154116B (en) PROCEDURE AND LAMEL PREPARATION DEVICE FOR SUPPLY AND DISTRIBUTION OF A COMPOSITION TO A LAMEL PREPARATION DEVICE.
IL28852A (en) Preparation of 2-arylamino-1,3-diazacycloalkenes-(2)
SU481155A3 (en) Production method - (furyl-methyl) morphinans
SE452464B (en) SET TO MAKE EBURNAMONIN DERIVATIVES
NO172050B (en) METHOD AND INTERMEDIATE FOR THE PREPARATION OF 1,4-DIAZABICYCLO (3.2.2.) NONANE
US4284797A (en) Process for separating mixtures of 3- and 4-nitrophthalic acid
NO861122L (en) NEW PYRIDONE DERIVATIVES.
SE450383B (en) INDOLO / 2,3-A / QUINOLIZIN DERIVATIVES, PREPARATION AND PHARMACEUTICAL PREPARATIONS THEREOF
NO317997B1 (en) Process for Preparation of a Naphthyridine Carboxylic Acid Derivative (Methanesulfonate Sesquihydrate)
KR100656636B1 (en) Process for the preparation of 6-methyl-2-4-methyl-phenyl-imidazo[1,2-a]pyridine-3-n,n-dimethyl-acetamide and intermediates
US2796419A (en) Lysergic acid, intermediates and preparation
JPH059177A (en) New nitrogen-containing heterocyclic compound
SU545262A3 (en) The method of obtaining derivatives of 4-oxo-4-pyrano- (3,2-c) quinoline-2-carboxylic acids or their salts
US4052404A (en) Indolo (2,3-α)quinolizines
KR840000115B1 (en) Process for the preparation of a carbazole derivative
CZ294957B6 (en) Process for preparing a substituted imidazopyridine compound
US5175297A (en) Methyl-quinoline derivatives as mefloquin intermediates and process for preparation thereof
HU178581B (en) Process for producing 6-chloro-alpha-methyl-carbasole-2-acetic acid
Dumitrascu et al. New pyrrolo [1, 2-a][1, 10] phenanthrolines with helical chirality
US4543415A (en) Process for preparing tricyclic indoles
NO162019B (en) ANALOGY PROCEDURE FOR THE PREPARATION OF THERAPEUTIC ACTIVE PYRIMIDOISKINOLIN DERIVATIVES.