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DE2927539A1 - Bis:di:ethanol-amino-di:piperidino-pyrimido-pyrimidine prepn. - from methyl acetoacetate and urea via amino-orotic acid - Google Patents

Bis:di:ethanol-amino-di:piperidino-pyrimido-pyrimidine prepn. - from methyl acetoacetate and urea via amino-orotic acid

Info

Publication number
DE2927539A1
DE2927539A1 DE19792927539 DE2927539A DE2927539A1 DE 2927539 A1 DE2927539 A1 DE 2927539A1 DE 19792927539 DE19792927539 DE 19792927539 DE 2927539 A DE2927539 A DE 2927539A DE 2927539 A1 DE2927539 A1 DE 2927539A1
Authority
DE
Germany
Prior art keywords
pyrimidine
pyrimido
amino
bis
orotic acid
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
DE19792927539
Other languages
German (de)
Inventor
Nichtnennung Beantragt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MARGINEANU DAN AXENTE DIPL ING
Original Assignee
MARGINEANU DAN AXENTE DIPL ING
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 MARGINEANU DAN AXENTE DIPL ING filed Critical MARGINEANU DAN AXENTE DIPL ING
Priority to DE19792927539 priority Critical patent/DE2927539A1/en
Publication of DE2927539A1 publication Critical patent/DE2927539A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D487/00Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/00 - C07D477/00
    • C07D487/02Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/00 - C07D477/00 in which the condensed system contains two hetero rings
    • C07D487/04Ortho-condensed systems

Landscapes

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

Abstract

Prepn. of 2,6-bis(diethanolamino)-4,8-dipiperidino-pyrimido (5,4-d)pyrimidine (I) is carried out by (a) condensing methyl acetoacetate with urea in MeOH at 25-100 deg.C for 1-4 hr to form methyluracil, (b) nitrating with HNO3 at -30 to 120 deg.C for 0.1-2 hr. to form nitromethyluracil, (c) oxidising with HNO3 at 10-180 deg.C for 0.1-6 hr to form nitro-orotic acid, (d) reducing with NaHS at 10-100 deg.C for 0.1-6 hr to form amino-orotic acid. Then (e) condensing with urea at 10-300 deg.C for 0.1-5 hr to form 2,4,6,8-tetrahydroxy-pyrimido (5,4-d)pyrimidine, (f) chlorinating with POCl3 and PCl3 at -10 to 180 deg.C for 0.1-10 hr to form 2,4,6,8-tetrachloro-pyrimido (5,4-d) pyrimidine, (g) reacting with piperidine at 0-100 deg.C for 0.1-12 hr to form 2,6-dichloro -4,8-dipiperidino-pyrimido (5,4-d) pyrimidine, and (h) reacting with diethanolamine at 5-350 deg.C for 0.1-24 hr to form (I).

Description

Beschreibung der Erfindung Description of the invention

Titel: Neue Technologie für die Produktion von 2,6 - Bis (diäthanolamino) - 4,8 - dipiperidino - pyrimido - (5,4-d) pyrimidin Anwendungsgebiet: Die Erfindung betrifft eine neue Technologie für die industriemäßige Produktion von 2,6 - Bis (diäthanolamino) - 4,8 -dipiperidino - pyrimidin (5,4-d) pyrimidin Zweck: Rationellere Produktion des im Titel genannten Stoffes Stand der Technik: Die herkömmliche technologische Produktion hat einen wesentlich- geringeren Wirkungsgrad als die Erfindung bei gleichem Reinheitsgrad; somit liegen die bisherigen Produktionskosten wesentlich höher.Title: New technology for the production of 2,6 - bis (diethanolamino) - 4,8 - dipiperidino - pyrimido - (5,4-d) pyrimidine Field of application: The invention concerns a new technology for industrial production of 2,6 - bis (diethanolamino) - 4,8 -dipiperidino - pyrimidine (5,4-d) pyrimidine Purpose: More rational Production of the substance mentioned in the title State of the art: The conventional technological Production has a much lower efficiency than the invention with the same Degree of purity; thus the previous production costs are significantly higher.

Lösung: 20 kg Acetessigsäuremethylester kondensieren mit 2 kg Harnstoff in Methylalkohol Temperatur: 250 bis 1000C Dauer: .1 bis 4 Stunden Das Produkt Methyluracil nitrieren mit 5 kg Salpetersäure Temperatur: - 300C bis 120°C Dauer 0,1 bis 2 Stunden Das Produkt Nitro Methyluracil oxydieren mit 20 kg Salpetersäure Temperatur: 10°C bis 1800C Dauer 0,1 bis 6 Stunden Dan Axente Margineanu Das Produkt Nitrocrotiosäure reduzieren mit 10 kg natriumhydrosulfid Temperatur: 10°C bis 100°C Dauer: 0,1 bis 6 Stunden Das Produkt Aminocrotiosäure kondensieren mit 1 kg Harnstoff Temperatur: 10°C bis 300°C Paner: 0,1 bis 5 Stunden Das Produkt 2,4,6,8 hydroxi pirimido (5,4-d) pyrimidin chlorieren mit 40 kg Phosphoroxychlor (PO Cl32) und 2 kg Phosphortrichlor (PCl3) Temperatur: -10°C bis 180°C Dauer: 0,1 bis 10 Stunden Das Produkt 2,4,6,8 chlor pirimido (5,4-d) pyrimidin substituieren mit 1 kg Piperidin Temperatur: 0°C bis 100°c Dauer: 0,1 bis 12 Stunden Das Produkt 2,6 (dichlor) 4,8 dipiperidino (5,4-d) pyrimidin substituierten mit 1 kg Diäthanolamin Temperatur: 5°C bis 350°C Dauer: 0,1 bis 24 Stunden Das Produkt 2,6 - Bis (diäthanolamino) 4,8 - dipiperidino - pyrimido - (5,4-d) pyrimidin reinigen mit 20 kg Methanol Endprodukt: 1 kg 2,6 - Bis (diäthanolamino)-4,8 dipiperidino - pyrimido (5,4-d) pyrimidin bei einem Reinheitsgrad von 99,5% Solution: 20 kg of methyl acetoacetate condense with 2 kg of urea in methyl alcohol Temperature: 250 to 1000C Duration: 1 to 4 hours Nitrate the product Methyluracil with 5 kg of nitric acid Temperature: - 300C to 120 ° C Duration 0.1 to 2 hours The product Nitro Methyluracil oxidize with 20 kg of nitric acid Temperature: 10 ° C to 1800C Duration 0.1 to 6 hours Dan Axente Margineanu Reduce the product nitrocrotioic acid with 10 kg sodium hydrosulfide Temperature: 10 ° C to 100 ° C Duration: 0.1 to 6 hours The product aminocrotioic acid condense with 1 kg urea Temperature: 10 ° C to 300 ° C Paner: 0.1 up to 5 hours chlorinate the product 2,4,6,8 hydroxi pirimido (5,4-d) pyrimidine with 40 kg phosphorus oxychlor (PO Cl32) and 2 kg phosphorus trichlor (PCl3) Temperature: -10 ° C to 180 ° C Duration: 0.1 to 10 hours Substitute the product 2,4,6,8 chloropirimido (5,4-d) pyrimidine with 1 kg of piperidine Temperature: 0 ° C to 100 ° C Duration: 0.1 to 12 hours The product 2 , 6 (dichloro) 4,8 dipiperidino (5,4-d) pyrimidine substituted with 1 kg diethanolamine Temperature: 5 ° C to 350 ° C Duration: 0.1 to 24 hours The product 2,6 - bis (diethanolamino) 4 , 8 - dipiperidino - pyrimido - (5,4-d) pyrimidine Purify with 20 kg of methanol End product: 1 kg of 2,6 - bis (diethanolamino) -4.8 dipiperidino - pyrimido (5,4-d) pyrimidine at one degree of purity of 99.5%

Claims (1)

Patentansprüche Oberbegriff: 1. Neue Technologie zur Produktion von 2,6 - Bis (diäthanolamino) - 4,8 - dipiperidino - pyrimido - (5,4-d) pyrimidin Kennzeichnender Teil: dadurch gekennzeichnet, daß 2,6 - Bis (diäthanolamino) - 4,8 - dipiperidino - pyrimido - (5,4-d) pyrimidin durch die Kondensation von Amino - crotiksäure mit Harnstoff von 10 °C bis 300 °C in einer Zeit von 0,1 bis 5 Stunden produziert wird Oberbegriff des Unteranspruchs: 2. Neue Technologie zur Produktion nach Anspruch 1, Kennzeichnender Teil des Unteranspruchs: dadurch gekennzeichnet, daß der technolo-Tische Vorgang in einer bestimmten Reihenfolge abläuft: Kondensation, Nitrierung, Oxydation, Reduktion, Kondensation, Chlorierung, Substitution, Substitution, Purifikation. Patent claims preamble: 1. New technology for the production of 2,6 - bis (diethanolamino) - 4,8 - dipiperidino - pyrimido - (5,4-d) pyrimidine Characteristic part: characterized in that 2,6 - bis (diethanolamino) - 4,8 - dipiperidino - pyrimido - (5,4-d) pyrimidine produced by the condensation of amino crotic acid with urea from 10 ° C to 300 ° C in a time of 0.1 to 5 hours is the preamble of the dependent claim: 2. New technology for production according to claim 1, characterizing part of the dependent claim: characterized in that the technological process takes place in a certain order: condensation, nitration, oxidation, reduction, condensation, chlorination, substitution, substitution, purification.
DE19792927539 1979-07-07 1979-07-07 Bis:di:ethanol-amino-di:piperidino-pyrimido-pyrimidine prepn. - from methyl acetoacetate and urea via amino-orotic acid Withdrawn DE2927539A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19792927539 DE2927539A1 (en) 1979-07-07 1979-07-07 Bis:di:ethanol-amino-di:piperidino-pyrimido-pyrimidine prepn. - from methyl acetoacetate and urea via amino-orotic acid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19792927539 DE2927539A1 (en) 1979-07-07 1979-07-07 Bis:di:ethanol-amino-di:piperidino-pyrimido-pyrimidine prepn. - from methyl acetoacetate and urea via amino-orotic acid

Publications (1)

Publication Number Publication Date
DE2927539A1 true DE2927539A1 (en) 1981-01-08

Family

ID=6075178

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19792927539 Withdrawn DE2927539A1 (en) 1979-07-07 1979-07-07 Bis:di:ethanol-amino-di:piperidino-pyrimido-pyrimidine prepn. - from methyl acetoacetate and urea via amino-orotic acid

Country Status (1)

Country Link
DE (1) DE2927539A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007080463A1 (en) * 2006-01-12 2007-07-19 Orchid Chemicals & Pharmaceuticals Limited An improved process for the preparation of dipyridamole
WO2011151640A1 (en) * 2010-05-31 2011-12-08 Generics [Uk] Limited Processes for the preparation of dipyridamole
CN106946887A (en) * 2017-03-24 2017-07-14 大连万福制药有限公司 It is a kind of to introduce the new technology that catalyst optimization synthesizes Dipyridamole

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007080463A1 (en) * 2006-01-12 2007-07-19 Orchid Chemicals & Pharmaceuticals Limited An improved process for the preparation of dipyridamole
WO2011151640A1 (en) * 2010-05-31 2011-12-08 Generics [Uk] Limited Processes for the preparation of dipyridamole
CN103108874A (en) * 2010-05-31 2013-05-15 基因里克斯(英国)有限公司 Processes for the preparation of dipyridamole
JP2013527221A (en) * 2010-05-31 2013-06-27 ジェネリクス・[ユーケー]・リミテッド Process for the preparation of dipyridamole
US8946414B2 (en) 2010-05-31 2015-02-03 Generics [Uk] Limited Processes for the preparation of dipyridamole
AU2011260044B2 (en) * 2010-05-31 2016-03-17 Tianish Laboratories Private Limited Processes for the preparation of dipyridamole
US9381197B2 (en) 2010-05-31 2016-07-05 Generics [Uk] Limited Processes for the preparation of dipyridamole
JP2016155810A (en) * 2010-05-31 2016-09-01 ジェネリクス・[ユーケー]・リミテッド Process for preparation of dipyridamole
CN103108874B (en) * 2010-05-31 2016-11-16 基因里克斯(英国)有限公司 For the method preparing dipyridamole
CN106946887A (en) * 2017-03-24 2017-07-14 大连万福制药有限公司 It is a kind of to introduce the new technology that catalyst optimization synthesizes Dipyridamole
CN106946887B (en) * 2017-03-24 2019-05-28 大连万福制药有限公司 A kind of preparation method introducing catalyst optimization synthesis Dipyridamole

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