DE2402908C2 - 7- (3-Oxobutyl) -1,3-di- (n-butyl) -xanthine and process for its preparation - Google Patents

7- (3-Oxobutyl) -1,3-di- (n-butyl) -xanthine and process for its preparation

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Publication number
DE2402908C2
DE2402908C2 DE2402908A DE2402908A DE2402908C2 DE 2402908 C2 DE2402908 C2 DE 2402908C2 DE 2402908 A DE2402908 A DE 2402908A DE 2402908 A DE2402908 A DE 2402908A DE 2402908 C2 DE2402908 C2 DE 2402908C2
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Germany
Prior art keywords
oxobutyl
xanthine
butyl
butylxanthine
preparation
Prior art date
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DE2402908A
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German (de)
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DE2402908A1 (en
Inventor
Günther Dr. 4006 Erkrath Brenner
Joachim Dr. Göring
Eskendar Ali Khan
Oskar Dr. Rohte
Manfred Dr. 3212 Gronau Tauscher
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FA JOHANN A WUELFING 4040 NEUSS DE
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FA JOHANN A WUELFING 4040 NEUSS DE
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Priority to DE2402908A priority Critical patent/DE2402908C2/en
Priority to DE19742462367 priority patent/DE2462367A1/en
Priority to CH1474974A priority patent/CH608236A5/xx
Priority to NLAANVRAGE7414887,A priority patent/NL184330C/en
Priority to AT929674A priority patent/AT338286B/en
Priority to CA216,460A priority patent/CA1068693A/en
Priority to AR257365A priority patent/AR207462A1/en
Priority to GB190075A priority patent/GB1441562A/en
Priority to FI750122A priority patent/FI59596C/en
Priority to HUWU17A priority patent/HU169012B/hu
Priority to BE152617A priority patent/BE824665A/en
Priority to FR7501906A priority patent/FR2258183B1/fr
Priority to JP50010126A priority patent/JPS5912677B2/en
Priority to YU00151/75A priority patent/YU15175A/en
Publication of DE2402908A1 publication Critical patent/DE2402908A1/en
Priority to AT243276A priority patent/AT338821B/en
Priority to US05/943,815 priority patent/US4242345A/en
Priority to US06/045,381 priority patent/US4291037A/en
Priority to FI801875A priority patent/FI801875A/en
Application granted granted Critical
Publication of DE2402908C2 publication Critical patent/DE2402908C2/en
Expired legal-status Critical Current

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    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D473/00Heterocyclic compounds containing purine ring systems
    • C07D473/02Heterocyclic compounds containing purine ring systems with oxygen, sulphur, or nitrogen atoms directly attached in positions 2 and 6
    • C07D473/04Heterocyclic compounds containing purine ring systems with oxygen, sulphur, or nitrogen atoms directly attached in positions 2 and 6 two oxygen atoms
    • C07D473/06Heterocyclic compounds containing purine ring systems with oxygen, sulphur, or nitrogen atoms directly attached in positions 2 and 6 two oxygen atoms with radicals containing only hydrogen and carbon atoms, attached in position 1 or 3

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Description

C4HC 4 H

(Π)(Π)

I = CH-C-CH3 I = CH-C-CH 3

Il οIl ο

(ΠΙ)(ΠΙ)

umsetzt, oderimplements, or

b) ein Alkallmetallsalz des l,3-Dl-(n-butyl)-xanthins der Formel II mit einem Oxobutylhalogenld der allgemeinen Formel IVb) an alkali metal salt of 1,3-Dl- (n-butyl) -xanthine of the formula II with an oxobutyl halide of the general formula IV

CH3-C-CH2-CH2-HaICH 3 -C-CH 2 -CH 2 -HaI

Il αν)Il αν)

In der Hai ein Brom oder Chloratom bedeutet, umsetzt.In which shark means a bromine or chlorine atom, implements.

In der DE-AS 12 33 405 wird die Darstellung von 7-(Oxoalkyl)-l,3-dlmethylxanthlnen beschrieben. Diese Verbindungen werden als ausgeprägte gefäßerweiternde Substanzen mit geringer Toxlzltät beschrieben. Außerdem Ist aus der DE-AS 12 35 320 die Darstellung von l-(Oxoa|kyl)-3,7-<llmethylxanthlnen bekannt. Auch diese Verbindungen zeigen eine signifikante gefäßerweiternde Wirkung.In DE-AS 12 33 405 the representation of 7- (Oxoalkyl) -l, 3-dlmethylxanthlnen described. These Compounds are described as pronounced vasodilating substances with low toxicity. aside from that Is from DE-AS 12 35 320 the representation of l- (Oxoa | kyl) -3,7- <llmethylxanthlnen known. These too Compounds show a significant vasodilatory effect.

Es wurde nun gefunden, daß das bisher nicht bekannte 7-(3-Oxobutyl)-l,3-dl-n-butylxanthln eine ausgeprägte skeleümuskeldurchblutungsstelgernde Wirkung bei geringer Toxlzltät hat.It has now been found that the previously unknown 7- (3-oxobutyl) -l, 3-dl-n-butylxanthine has a pronounced effect skeletal muscle blood flow-regulating effect at low Has toxicity.

Gegenstand der vorliegenden Erfindung Ist demgemäß 7-(3-Oxobutyl)-1.3-dl-n-butylxanthln der Formel 1The present invention accordingly relates to 7- (3-oxobutyl) -1.3-dl-n-butylxanthine of the formula 1

N-CH2-CH2-C-CH3 N-CH 2 -CH 2 -C-CH 3

2. Verfahren zur Darstellung der Verbindung gemäß Anspruch 1, dadurch gekennzeichnet, daß man in an sich bekannter Weise bei erhöhten Temperaturen und gegebenenfalls In Anwesenheit eines Lösungsmilleis entweder2. A method for preparing the compound according to claim 1, characterized in that one in a manner known per se at elevated temperatures and, if appropriate, in the presence of a mixture of solution either

a) 1,3-Di-(n-butyl)-xanthln der Formel IIa) 1,3-Di- (n-butyl) -xanthine of the formula II

Die beanspruchte Verbindung wird in an sich bekannter Welse dadurch hergestellt, daß man bei erhöhten Temperaturen und gegebenenfalls In Anwesenheit eines Lösungsmittels entweder
a) l,3-Di-(n-butyI)-xanthln der Formel II
The claimed compound is prepared in a known manner by either at elevated temperatures and, if appropriate, in the presence of a solvent
a) 1,3-di- (n-butyI) -xanthine of the formula II

C4HC 4 H

2525th

3030th

C4H9 C 4 H 9

im alkalischen Medium mit Methylvinylketon der Formel IIIin an alkaline medium with methyl vinyl ketone of the formula III

C4H9 C 4 H 9

Im alkalischen Medium mit Methylvinylketon der Formel IIIIn an alkaline medium with methyl vinyl ketone of the formula III

H2C = CH-C-CH3 H 2 C = CH-C-CH 3

umsetzt, oderimplements, or

b) ein Alkallmetallsatz des l,3-Dl-(n-butyl)-xanthins der Formel II mit einem Oxobutylhalogenid der allgemeinen Formel IVb) an alkali metal set of 1,3-Dl- (n-butyl) -xanthine of the formula II with an oxobutyl halide of the general formula IV

40 CH3-C-CH2-CH2-HaI 40 CH 3 -C CH 2 -CH 2 -HaI

Il οIl ο

In der Hai ein Brom oder Chloratom bedeutet, umsetzt.In which shark means a bromine or chlorine atom, implements.

Die beschriebenen Umsetzungen werden vorzugsweise bei Temperaturen von 40 bis 80° C, gegebenenfalls bei erhöhtem oder vermindertem Druck, aber gewöhnlich bei Atmosphärendruck, durchgeführt. Die einzelnen Ausgangsverbindungen können In stöchlometrlschen Mengen oder Im Überschuß angewendet werden. Die Alkallsalze Im Verfahren b) können entweder vorher oder In der Reaktion selbst dargestellt werden.The reactions described are preferably at temperatures of 40 to 80 ° C, optionally at elevated or reduced pressure, but usually at atmospheric pressure. The single ones Starting compounds can be used in stoichlometric amounts or in excess. the Alkaline salts in process b) can either be prepared beforehand or in the reaction itself.

\ls Lösungsmittel kommen mit Wasser mischbare Verbindungen In Frage, vorzugsweise niedere Alkohole, wie Methanol, Propanol, Isopropanol und die verschledenen Butanole, ferner Aceton, Pyrldln, Trläthylamln, mehrwertige Alkohole, wie Äthylenglykol, sowie Äthylenglykolmonomethyl/(äthyl)-äther. \ ls solvents come miscible with water Compounds in question, preferably lower alcohols such as methanol, propanol, isopropanol and the various Butanols, also acetone, Pyrldln, Trläthylamln, polyhydric alcohols such as ethylene glycol, and ethylene glycol monomethyl / (ethyl) ether.

Die erfindungsgemäß hergestellte Verbindung zeichnet sich durch ausgeprägte skelettmuskeldurchblutungsstelgernde Wirkung bei geringer Toxlzltät aus.The connection produced according to the invention is characterized is characterized by a pronounced skeletal muscle blood flow-regulating effect with low toxicity.

Die nachstehenden Versuche erläutern diese Wirkung. Sie wurden an männlichen und weiblichen Katzen (unter Urethan-Chloralose-Narkose) durchgeführt. Die Substanzen wurden In Methylcellulose-Suspension intraduodenal appllzlert. Blutdruck, Herzfrequenz und Durchblutung wurden In der üblichen Welse mit Statham-Transducer bzw. Wärmeleitsonden bestimmt. Die ermittelten Daten (vgl. Tabelle I) zeigen den starken skelettmuskeldurch-The experiments below explain this effect. They were tested on male and female cats (under Urethane-chloralose anesthesia). The substances were administered intraduodenally in methyl cellulose suspension appllzlert. Blood pressure, heart rate and blood flow were measured in the usual catfish with Statham transducers or heat conduction probes determined. The determined data (see Table I) show the strong skeletal muscle

blutungssteigernden Effekt, der insbesondere den von Vergleichssubstanzen, z. B. Pentoxyphyllin, klar übertrifft (vgl. Tabelle II). Das Verhältnis der Steigerung >r Durchblutung der Skelettmuskulatur und der Herzfrequenzsteigerung ist günstig. Die erhaltenen Resultate sind in den Fig. 1 und 2 graphisch wiedergegeben.bleeding-increasing effect, especially that of Comparative substances, e.g. B. pentoxyphylline, clearly exceeded (see. Table II). The ratio of the increase> r The blood flow to the skeletal muscles and the increase in heart rate are beneficial. The results obtained are shown graphically in Figs.

Tabelle ITable I.

7-(3-Oxobutyl)-l,3-dl-n-butylxanthln i. d. Katze7- (3-oxobutyl) -l, 3-dl-n-butylxanthine i. d. cat

In Mlnu-In Mlnu-

IiIi Blutdruck (BP)Blood pressure (BP) Änderung In % Change in % Dauerduration 38,838.8 ii 5 mg/kg5 mg / kg tenth 57,357.3 II. 12,6 mg/kg12.6 mg / kg 40,040.0 ii 31,5 mg/kg31.5 mg / kg + 10,5+ 10.5 25,025.0 ii 63,0 mg/kg63.0 mg / kg + 9,7+ 9.7 Herzfrequenz (HR)Heart rate (HR) + 9,7+ 9.7 > 49,0> 49.0 tt 7 mg/kg7 mg / kg - 7,7- 7.7 55,955.9 12,6 mg/kg12.6 mg / kg 61,061.0 31,5 mg/kg31.5 mg / kg + 12,7+ 12.7 40,040.0 63,0 mg/kg63.0 mg / kg + 13,8+ 13.8 (( SkelettmuskulaturSkeletal muscles + 7,!+ 7 ,! WärmetransportzahlHeat transfer number - 0,9- 0.9 72,072.0 5 mg/kg5 mg / kg 77,077.0 12,6 mg/kg12.6 mg / kg 75,075.0 31,5 mg/kg31.5 mg / kg + 28,8+ 28.8 26,026.0 63,0 mg/kg63.0 mg / kg + 29,3+ 29.3 ff + 24,5+ 24.5 + 12,0+ 12.0

muskelhaut wird der sclatlscbe Nciv eiwa 3 cm vom Knie entfernt durchgeschnitten. Dta Sehne de.·· W?denmuskel wl'd durchgeschnitten and mil ^inc.Ti Knrnetr'-v.hen Kraitüberträger (SWEMA; SG3) verbunden. Lm konstante Untc-sehiede und eine Ruhespannung von IOC ρ zu erhalten, wird die Hinterpfote mit einer Klammer am Tibia befestigt. Die direkte Stimulation der Muskeln besieht aus Rechteckwellenimpulsen von 3 msec Dauer, einer Frequenz von 2 Hz und einer Spannung von 50 V. Die Muskeln werden ständig mit einer 0,9%i|;en Natrtumehloridlüsung bei 38'C überspült, um sie: naß und bei normaler Temperatur zu halten. Der femorale Blutstrom wird durch Anlegen einer verstellbaren Okklusion an die Arterie vermindert, was zu einer Verminderung der Kontraktibllität von etwa 30% führt. Nach Erreichen einer konstanten Kontraktionskraft wird das Trägermittel (Natriumchlorid bzw. Methocel) injiziert, anschließend wird die Testverbindung intraduodenal verabreicht. The muscular skin is cut through the sclatlscbe about 3 cm from the knee. .? Dta de tendon ·· W denmuskel wl'd cut and mil ^ inc.Ti Knrnetr'-v.hen Kraitüberträger (Swema; SG3), respectively. The hind paw is attached to the tibia with a clamp in order to obtain constant differences and a resting tension of IOC ρ. The direct stimulation of the muscles consists of square wave pulses of 3 msec duration, a frequency of 2 Hz and a voltage of 50 V. The muscles are constantly flooded with a 0.9% sodium chloride solution at 38 ° C to keep them wet and keep at normal temperature. The femoral blood flow is decreased by applying an adjustable occlusion to the artery, resulting in a decrease in contractibility of about 30%. After a constant contraction force has been achieved, the carrier (sodium chloride or Methocel) is injected, and the test compound is then administered intraduodenally.

In der folgenden Tabelle bedeutet Verbindung A 1,3-Dimethyl-7-{3-oxobutyl)-xanthln, B ■ 3-Di-n-butyl-7-(3-oxobutyO-xanthln und C Penioxyphyiiin.In the following table, compound A means 1,3-dimethyl-7- {3-oxobutyl) -xanthine, B ■ 3-di-n-butyl-7- (3-oxobutyO-xanthine and C penioxyphyiiine.

Tabelle IIITable III

Kontraktibllität des ischämischen Skelettmuskels der KatzeCat ischemic skeletal muscle contractibility

Verbindunglink Erhöhung der Koniraktibllltäl, % *)Increase in Koniraktibllltäl,% *)

5 mg/kg5 mg / kg

12,5 mg/kg12.5 mg / kg

N = 6 bei allen DosierungenN = 6 at all dosages

Tabelle II (Vergleich)Table II (comparison)

Pentoxyphyllin [l-(5-Oxohexyl)-3,7-dimethylxanthin]Pentoxyphylline [1- (5-oxohexyl) -3,7-dimethylxanthine]

I. d. KatzeI. d. cat

3030th

3535

(Vergleich)(Comparison)

(erfindungsgemäß)(according to the invention)

(Vergleich)(Comparison)

keine Wirkung
n = 3
no effect
n = 3

16,4 ± 7,0
n = 7
16.4 ± 7.0
n = 7

9,1 ± 2,5
n = 4
9.1 ± 2.5
n = 4

r 2,5 ± 2,5
n = 3
r 2.5 ± 2.5
n = 3

21,6 ± 7,4
n = 9
21.6 ± 7.4
n = 9

14,4 ± 0,9
n = 4
14.4 ± 0.9
n = 4

Änderung In % Change in %

Dauer tenDuration

In Minu) Prozent des ursprünglichen WerlesIn minu) percent of the original value

Blutdruck (BP)Blood pressure (BP)

5 mg/kg ± 05 mg / kg ± 0

10 mg/kg + 310 mg / kg + 3

30 mg/kg + 330 mg / kg + 3

50 mg/kg - 350 mg / kg - 3rd

Herzfrequenz (HR)Heart rate (HR)

5 mg/kg + 95 mg / kg + 9

10 mg/kg + 1010 mg / kg + 10

30 mg/kg + 2030 mg / kg + 20

50 mg/kg + IC50 mg / kg + IC

Skelettmuskulatur
Wärmetransportzahl
Skeletal muscles
Heat transfer rate

5 mg/kg + 105 mg / kg + 10

10 mg/kg + 410 mg / kg + 4

30 mg/kg + 230 mg / kg + 2

50 mg/kg ± 050 mg / kg ± 0

10 19 > 2810 19> 28

> 27> 27

> 30> 30

> 21> 21

> 26> 26

20 12 1720 12 17

Wlrkung des erfindungsgemäßen l,3-Dl-n-butyl-7-(3-oxobutyD-xanthlns auf die Kontrak'.lbilltät des Ischämischen Skelettmuskels der Katze Im Vergleich zu der von 3,7-Dlmethyl-l-(5-oxohexyl)-xanthln (Pentoxyphyllin) und l,3-D!methy!-7-(3-oxobutyl)-xanthln 1,5 bis 3,1 kg schwere Katzen beiden Geschlechts werden mit Urethan/Chloralose (120/60 mg/kg I. p.) anästhesiert. Während der Versuche wird Pentobarbital Intravenös (V. anlebracchl ceph) über ein Kunststoffrohr Injiziert. Die intraduodenale Verabreichung der Verbindung erfolgt über einen Kunststoffkatheter, der in das Duodenum eingeführt wird. Na.h Durchtrennen der Wadcn-In der Tabelle bedeutet η die Zahl der Tiere je Gruppe. Die Ergebnisse für B und C sind signifikant mit ρ .. 0,05 bei einer Dosis von 5 und 12,5 mg/kg. Bei diesen Dosen ist die mittlere prozentuale Erhöhung nach Verabreichung von l,3-Dl-n-butyl-7-(3-oxobutyl)-xanthin größer als die Erhöhung nach Verabreichung von Pentoxyphyllin. Diese Ergebnisse beweisen, daß l,3-Di-nbutyI-7-<3-oxobutyD-xanthin ein wirkungsvolles Medikament Ist.Effect of the 1,3-Dl-n-butyl-7- (3-oxobutyD-xanthine) according to the invention on the contraction of the ischemic Skeletal muscle of the cat compared to that of 3,7-dimethyl-l- (5-oxohexyl) -xanthine (pentoxyphylline) and 1,3-D! methy! -7- (3-oxobutyl) -xanthine 1.5 to 3.1 kg Heavy cats of either sex are given urethane / chloralose (120/60 mg / kg I. p.) Anesthetized. Pentobarbital is administered intravenously during the experiments (V. anlebracchl ceph) Injected through a plastic tube. The intraduodenal administration of the compound is via a plastic catheter that is inserted into the duodenum is introduced. After cutting the calf-in In the table, η means the number of animals per group. The results for B and C are significant with ρ .. 0.05 at a dose of 5 and 12.5 mg / kg. At these doses is the mean percentage increase after administration of 1,3-Dl-n-butyl-7- (3-oxobutyl) -xanthine greater than the increase after administration of pentoxyphylline. These results prove that 1,3-di-n-butyl-7- <3-oxobutyD-xanthine Is a powerful drug.

An Bastardhunden (unter Urethan-Chloralose-Narkose) wurde der Einfluß auf den Partlaldruck des Sauerstoffs (pO2) im arteriellen und venösen Blut untersucht. Dazu wurde in Abständen von 5 min Blut aus der A.The influence on the partial pressure of oxygen (pO 2 ) in the arterial and venous blood was investigated in hybrid dogs (under urethane-chloralose anesthesia). For this purpose, blood from the A.

aorta und der V. femoralIs entnommen.aorta and the femoral vein.

Die Testsubstanzen, nämlich 7-(3-Oxobutyl)-l,3-dl-nbutylxanthin und zum Vergleich Pentoxyphyllin, wurden intravenös gegeben.
Die Jnmallge Gabe von 30 mg 7-(3-Oxobutyl)-l,3-din-butylxanthln pro kg I. v. zeigt, daß diese Substanz bis zu mindestens 70 min den pO2 sowohl Im arteriellen wie auch im venösen Schenkel des Kreislaufes deutlich erhöht. Diese pOj-Steigerung Ist länger anhaltend als die von Pentoxyphyllin.
The test substances, namely 7- (3-oxobutyl) -1, 3-dl-n-butylxanthine and, for comparison, pentoxyphylline, were given intravenously.
The initial administration of 30 mg 7- (3-oxobutyl) -l, 3-din-butylxanthine per kg I.V. shows that this substance significantly increases the pO 2 in the arterial as well as in the venous limb of the circulation for up to at least 70 min. This pOj increase is longer lasting than that of pentoxyphylline.

Die LD 50 der Verbindung liegt bei der Maus be! über 1000 mg/kg per os und bei 134 mg/kg i, v,; sie Ist damit nicht toxischer als die Vergleichssubstanzen (vgl. die oben genannten DE-AS).The LD 50 of the connection is with the mouse be! above 1000 mg / kg orally and at 134 mg / kg i, v ,; she is with it not more toxic than the comparison substances (cf. above-mentioned DE-AS).

Bei Untersuchungen an Rattenhirn In vivo zeigte sichInvestigations on rat brain in vivo showed

M nach einmnlip.er Gabe vnn 100 mg/kg 7-(3-OxObUIy1V 1,3 dl-n-butylxanthln p. o. Im Vergleich zu einer Kontrolle mit Methylcellulose-Suspenslon ein erhöhter Sauerstoffverbrauch (vgl. Tabelle IV und F Ie. 3).M after a single administration of 100 mg / kg 7- (3-OxObUIy 1 V 1.3 dl-n-butylxanthine po In comparison to a control with methylcellulose suspension, an increased oxygen consumption (see Table IV and Fig. 3 ).

Tabelle IVTable IV

ul Oj-Verbrauch/g Irlschgewlcht Rattenhirn In vivo (In Methylcclliilnse-Siispenslnn) + 100 mg/kg 7-(3-Oxobutyl)-l.3-di-n-butylxanthln p. o. 2h vor Tütenul Oj consumption / g Irlschgewlcht rat brain in vivo (In Methylccillnse-Siispenslnn) + 100 mg / kg 7- (3-Oxobutyl) -l.3-di-n-butylxanthine po 2 h before bags

Tier Nr. Gewicht, H) MIn.Animal No. Weight, H) MIn.

2U Min. 2U min.

.Hl MIn..Hl MIn.

4Π Mm4Π mm

50 Mm.50 mm.

fiO Min.fiO min.

II. 172172 - 250,7- 250.7 -- - 458,3- 458.3 -- - 654,5- 654.5 831.8831.8 970,1970.1 __ - 1132.0- 1132.0 22 186186 - 207.5- 207.5 - 407,6- 407.6 - 596,5- 596.5 763.8763.8 - 920,1- 920.1 - 1105.3- 1105.3 33 177177 -275.0-275.0 - 520,3- 520.3 -728,4-728.4 -921.7-921.7 - 1100,1- 1100.1 - 1189.3- 1189.3 44th 176176 - 183,0- 183.0 - 426,8- 426.8 - 602,0- 602.0 754.5754.5 914,5914.5 - 1059.3- 1059.3 55 187187 - 197.9- 197.9 - 395,6- 395.6 - 586,4- 586.4 - 752,9- 752.9 915,6915.6 - 1064,4- 1064.4 66th 176176 - 197,1- 197.1 - 370.3- 370.3 - 546.9- 546.9 - 699,8- 699.8 - 862,9- 862.9 - 995,3- 995.3 77th 205205 220.1220.1 -429,7-429.7 - 606.8- 606.8 - 763.1- 763.1 - 940,9- 940.9 - 1083.6- 1083.6 88th 200200 - 209,7- 209.7 - 349,6- 349.6 - 535,0- 535.0 - 698,7- 698.7 - 850.7- 850.7 - 1014.9- 1014.9 99 198198 - 233.3- 233.3 -438,2-438.2 -646,7-646.7 -805,7-805.7 - 978,8- 978.8 - 1109,6- 1109.6 1010 196196 - 224,6- 224.6 436,9436.9 - 649,2- 649.2 - 861,6- 861.6 - 1012.6- 1012.6 1269,91269.9 187187 219,9219.9 - 423,3- 423.3 -614,3-614.3 - 7X5,4- 7X5.4 - 946.6- 946.6 - I 102,4- I 102.4 3,63.6 4,34.3 3,83.8 4,24.2 4.44.4 10,210.2 Signifikanzsignificance P < 0,01P <0.01

Tabelle IV (Fortsetzung)Table IV (continued)

Kontrolle (Methylcellulose-Suspension p. o.)Control (methyl cellulose suspension p. O.)

Tier Nr.
?
Animal no.
?
Gewicht,
g
Weight,
G
10 Min.10 min. 20 Min.20 min. 30 Mm.30 mm. 40 MIn.40 min. 50 Min.50 min. 60 MIn.60 min.
11 184184 -217,7-217.7 -428,7-428.7 -598,6-598.6 - 757,8- 757.8 - 945.8- 945.8 - 1024,8- 1024.8 22 162162 - 220,5- 220.5 - 404.6- 404.6 - 580,0- 580.0 - 750,7- 750.7 - 918.4- 918.4 - 1004.9- 1004.9 33 175175 -235,7-235.7 -484,6-484.6 -683,8-683.8 - 908.2- 908.2 - 1026.9- 1026.9 -1106.8-1106.8 44th 165165 -213,5-213.5 -388,2-388.2 -575,8-575.8 - 737.5- 737.5 - 899,2- 899.2 - 989,8- 989.8 55 166166 - 194,3- 194.3 -388,7-388.7 -556,2-556.2 - 690,2- 690.2 - 817,5- 817.5 - 93i,5- 93i, 5th 66th 185185 - 192,5- 192.5 - 358,4- 358.4 -544,2-544.2 - 703.5- 703.5 - 329.6- 329.6 - \?29.2- \? 29.2 77th 202202 - 207,2- 207.2 -393,7-393.7 - 594,0- 594.0 - 759,7- 759.7 - 918,6- 918.6 -1015.3-1015.3 88th 181181 - 184,4- 184.4 -371,9-371.9 - 520.6- 520.6 - 698,4- 698.4 - 834.3- 834.3 - 973,4- 973.4 99 179179 - 245,0- 245.0 -424,9-424.9 -638,7-638.7 - 787.5- 787.5 - 942,7- 942.7 - 1030.4- 1030.4 1010 192192 -211,1-211.1 -415,3-415.3 -626.3-626.3 - 746,9- 746.9 - 930,9- 930.9 - 997.7- 997.7

179179

-212,2-212.2

-405,9-405.9

-591,8-591.8

- 754,0- 754.0

- 906.4- 906.4

- 1000,4- 1000.4

Das nachstehende Beispiel erläutert die Erfindung.The following example illustrates the invention.

Beispiel
7-(3-Oxobutyl)-1.3-di-n-butylxanthln
example
7- (3-oxobutyl) -1.3-di-n-butylxanthine

In einem 3 Liter Dreihalskolben werden 264,8 g (1 Mol) 1.3-Di-n-butylxanthin, 84 g (1.2 Mol) Methylvinylketon. 1060 ml Methanol und 39,7 ml Triäthylamin zusammengegeben und das Gemisch unter Rühren langsam auf 40 bis 450C erwärmt. Die Reaktionslösung wird solange bei dieser Temperatur gehalten, bis sich dünnschichtchromatographisch praktisch kein 1,3-Dl-n-butylxanthin mehr nachweisen läßt Reaktionsdauer ca. 2 bis 2.5 Stunden.264.8 g (1 mol) of 1,3-di-n-butylxanthine and 84 g (1.2 mol) of methyl vinyl ketone are placed in a 3 liter three-necked flask. 1060 ml of methanol and 39.7 ml of triethylamine are combined and the mixture is slowly warmed to 40 to 45 ° C. while stirring. The reaction solution is kept at this temperature until virtually no more 1,3-Dl-n-butylxanthine can be detected by thin-layer chromatography. Reaction time approx. 2 to 2.5 hours.

Nach beendeter Reaktion wird zu dieser Lösung soviel Wasser in kleinen Portionen zugegeben, daß eine ca. 75-After the reaction has ended, this solution becomes so much Water added in small portions so that an approx. 75-

bis 80prozentige wäßrige metlianolische Lösung entsteht; diese läßt man mehrere Stunden im Kühlschrank stehen und saugt die entstandenen Kristalle ab. Durch nochmaliges Umkristallisieren aus Methanol-Wasser erhält man 276 g £ 80% der Theorie 7-(3-Oxobutyl)-l.3-di-n-butylxanthin vom Schmelzpunkt 86 bis 87° C.up to 80 percent aqueous metallic solution is formed; this is left to stand in the refrigerator for several hours and the crystals formed are filtered off with suction. By repeating Recrystallization from methanol-water gives 276 g £ 80% of theory of 7- (3-oxobutyl) -1.3-di-n-butylxanthine from melting point 86 to 87 ° C.

Durch Einengen der methanolischen Mutterlaugen erhält man zusätzlich noch 24 g 7-(3-Oxobutyl)-l,„ di-nbutylxanthin. Gesamtausbeute: 300 g = 87% der Theorie.Concentration of the methanolic mother liquors gives an additional 24 g of 7- (3-oxobutyl) -1, “di-n-butylxanthine. Overall yield: 300 g = 87% of theory.

Analyse:Analysis:

berechnet:
gefunden:
calculated:
found:

61,06
60,92
61.06
60.92

7,84
7.81
7.84
7.81

16.75
16,96
16.75
16.96

!4,35%
14.34%
! 4.35%
14.34%

Hierzu 3 Blatt ZeichnungenFor this purpose 3 sheets of drawings

Claims (1)

Patentansprüche: I. 7-(3-Oxobutyl)-l(3-dl-n-butylxanthln der Formel ίClaims: I. 7- (3-oxobutyl) -l ( 3-dl-n-butylxanthine of the formula ί C4H9C4H9 N-CH2-CHj-C-CH3 N-CH 2 -CHj-C-CH 3 C4H9C4H9 (I)(I)
DE2402908A 1974-01-22 1974-01-22 7- (3-Oxobutyl) -1,3-di- (n-butyl) -xanthine and process for its preparation Expired DE2402908C2 (en)

Priority Applications (18)

Application Number Priority Date Filing Date Title
DE2402908A DE2402908C2 (en) 1974-01-22 1974-01-22 7- (3-Oxobutyl) -1,3-di- (n-butyl) -xanthine and process for its preparation
DE19742462367 DE2462367A1 (en) 1974-01-22 1974-01-22 7-(Oxo-alkyl)-1,3-dialkyl-xanthines - as agents for increasing blood flow in skeletal muscles
CH1474974A CH608236A5 (en) 1974-01-22 1974-11-04
NLAANVRAGE7414887,A NL184330C (en) 1974-01-22 1974-11-14 METHOD FOR PREPARING A PHARMACEUTICAL PREPARATION WITH A STRENGTHENING EFFECT ON THE BREEDERING OF SKELETON MUSCLES, SO PREPARED PREPARATION, AND PROCESS FOR THE PREPARATION OF 1,3-DIALKYL-7- (OXOALHYL-THINOXHKIN)
AT929674A AT338286B (en) 1974-01-22 1974-11-20 PROCESS FOR THE PRODUCTION OF NEW 7- ((OMEGA-1) -OXOALKYL) -1,3- DIALKYLXANTHINES
CA216,460A CA1068693A (en) 1974-01-22 1974-12-19 7-(oxoalkyl)-1-3-dialkyl xanthines and a process for their preparation
AR257365A AR207462A1 (en) 1974-01-22 1975-01-01 PROCEDURE FOR PREPARING 7- (OXOALKYL) -1,3-DIALKYLXANTHINES
GB190075A GB1441562A (en) 1974-01-22 1975-01-16 7-oxoalkyl-1,3-dialkyl xanthines
FI750122A FI59596C (en) 1974-01-22 1975-01-20 REFERENCE FOR THERAPEUTIC USE OF THERAPEUTIC ANALYSIS 7- (3-OXOBUTYL) -1,3-DI- (N-BUTYL) XANTIN
HUWU17A HU169012B (en) 1974-01-22 1975-01-21
BE152617A BE824665A (en) 1974-01-22 1975-01-22 7- (OXO-ALCOYL) -1,3-DIALCOYL-XANTHINS, THEIR PREPARATION PROCESS AND MEDICINAL PRODUCTS CONTAINING THESE COMPOUNDS
FR7501906A FR2258183B1 (en) 1974-01-22 1975-01-22
JP50010126A JPS5912677B2 (en) 1974-01-22 1975-01-22 Production method of xanthine derivatives
YU00151/75A YU15175A (en) 1974-01-22 1975-01-22 Process for producing 7-(oxoalkyl)-1,3-dialkylxanthine
AT243276A AT338821B (en) 1974-01-22 1976-04-05 PROCESS FOR THE PREPARATION OF NEW 7- (3'-OXOALKYL) -1,3-DIALKYLXANTHINES
US05/943,815 US4242345A (en) 1974-01-22 1978-09-19 7-(Oxoalkyl)-1,3-dialkyl xanthines, and medicaments containing them
US06/045,381 US4291037A (en) 1974-01-22 1979-06-04 7-(Oxoalkyl)-1,3-di-n-iso-propyl xanthines and their production
FI801875A FI801875A (en) 1974-01-22 1980-06-11 7- (OXOALKYL) -1,3-DIALKYLXANTINER FOERFARANDE FOER DERAS FRAMSTAELLNING OCH CEILING MODEL INNEHAOLLANDE DESSA FOERENINGAR

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DE2402908A DE2402908C2 (en) 1974-01-22 1974-01-22 7- (3-Oxobutyl) -1,3-di- (n-butyl) -xanthine and process for its preparation
DE19742462367 DE2462367A1 (en) 1974-01-22 1974-01-22 7-(Oxo-alkyl)-1,3-dialkyl-xanthines - as agents for increasing blood flow in skeletal muscles

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DE19742462367 Withdrawn DE2462367A1 (en) 1974-01-22 1974-01-22 7-(Oxo-alkyl)-1,3-dialkyl-xanthines - as agents for increasing blood flow in skeletal muscles

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US4636507A (en) * 1984-04-30 1987-01-13 Hoechst-Roussel Pharmaceuticals Inc. Host defense mechanism enhancement
GB8601371D0 (en) * 1986-01-21 1986-02-26 Beecham Group Plc Compounds
GB8621870D0 (en) * 1986-09-11 1986-10-15 Beecham Group Plc Active compounds
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DE3942872A1 (en) * 1989-12-23 1991-06-27 Hoechst Ag METHOD FOR THE ENANTIOSELECTIVE PRESENTATION OF ((OMEGA) -1) -HYDROXYALKYLXANTHINES
EP0570831A2 (en) * 1992-05-20 1993-11-24 Hoechst Aktiengesellschaft Use of Xanthinderivatives for treatment of cerebral nerve dammages after disruption of the blood circulation
CA2715683A1 (en) 1999-08-21 2001-03-01 Nycomed Gmbh Synergistic combination
US7772188B2 (en) 2003-01-28 2010-08-10 Ironwood Pharmaceuticals, Inc. Methods and compositions for the treatment of gastrointestinal disorders
AU2004226353A1 (en) 2003-04-01 2004-10-14 Laboratoires Serono Sa Inhibitors of phosphodiesterases in infertility
US8969514B2 (en) 2007-06-04 2015-03-03 Synergy Pharmaceuticals, Inc. Agonists of guanylate cyclase useful for the treatment of hypercholesterolemia, atherosclerosis, coronary heart disease, gallstone, obesity and other cardiovascular diseases
ES2393885T7 (en) 2007-06-04 2014-01-30 Synergy Pharmaceuticals Inc. Guanylate cyclase agonists useful for the treatment of gastrointestinal disorders, inflammation, cancer and other disorders
ES2522968T3 (en) 2008-06-04 2014-11-19 Synergy Pharmaceuticals Inc. Guanylate cyclase agonists useful for the treatment of gastrointestinal disorders, inflammation, cancer and other disorders
AU2009270833B2 (en) 2008-07-16 2015-02-19 Bausch Health Ireland Limited Agonists of guanylate cyclase useful for the treatment of gastrointestinal, inflammation, cancer and other disorders
US9616097B2 (en) 2010-09-15 2017-04-11 Synergy Pharmaceuticals, Inc. Formulations of guanylate cyclase C agonists and methods of use
JP6251038B2 (en) 2011-03-01 2017-12-20 シナジー ファーマシューティカルズ インコーポレイテッド Method for preparing guanylate cyclase C agonist
AU2014218599C1 (en) 2013-02-25 2018-09-06 Bausch Health Ireland Limited Guanylate cyclase receptor agonists for use in colonic cleansing
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JP2016514671A (en) 2013-03-15 2016-05-23 シナジー ファーマシューティカルズ インコーポレイテッド Guanylate cyclase agonists and uses thereof
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CH325292A (en) * 1953-10-21 1957-10-31 Geigy Ag J R Process for the preparation of 7-oxyalkyl-xanthine derivatives
DE1233405B (en) 1964-09-05 1967-02-02 Albert Ag Chem Werke Process for the preparation of 7- (oxoalkyl) -1, 3-dimethylxanthines

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