ES484097A0 - Un procedimiento para la preparacion de nuevos derivados de-4-anilinoquinazolinas - Google Patents

Un procedimiento para la preparacion de nuevos derivados de-4-anilinoquinazolinas

Info

Publication number
ES484097A0
ES484097A0 ES484097A ES484097A ES484097A0 ES 484097 A0 ES484097 A0 ES 484097A0 ES 484097 A ES484097 A ES 484097A ES 484097 A ES484097 A ES 484097A ES 484097 A0 ES484097 A0 ES 484097A0
Authority
ES
Spain
Prior art keywords
anilinoquinazolines
procedure
preparation
new derivatives
derivatives
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.)
Granted
Application number
ES484097A
Other languages
English (en)
Spanish (es)
Other versions
ES8100276A1 (es
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.)
Sankyo Co Ltd
Ube Corp
Original Assignee
Sankyo Co Ltd
Ube Industries Ltd
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 Sankyo Co Ltd, Ube Industries Ltd filed Critical Sankyo Co Ltd
Publication of ES8100276A1 publication Critical patent/ES8100276A1/es
Publication of ES484097A0 publication Critical patent/ES484097A0/es
Granted legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D239/00Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings
    • C07D239/70Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings condensed with carbocyclic rings or ring systems
    • C07D239/72Quinazolines; Hydrogenated quinazolines
    • C07D239/86Quinazolines; Hydrogenated quinazolines with hetero atoms directly attached in position 4
    • C07D239/94Nitrogen atoms
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P25/00Drugs for disorders of the nervous system
    • A61P25/04Centrally acting analgesics, e.g. opioids
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P29/00Non-central analgesic, antipyretic or antiinflammatory agents, e.g. antirheumatic agents; Non-steroidal antiinflammatory drugs [NSAID]

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • Pain & Pain Management (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Engineering & Computer Science (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Biomedical Technology (AREA)
  • Neurosurgery (AREA)
  • Neurology (AREA)
  • Rheumatology (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Plural Heterocyclic Compounds (AREA)
ES484097A 1978-09-11 1979-09-11 Un procedimiento para la preparacion de nuevos derivados de-4-anilinoquinazolinas Granted ES484097A0 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11148478A JPS5538325A (en) 1978-09-11 1978-09-11 4-anilinoquinazoline derivative and its preparation

Publications (2)

Publication Number Publication Date
ES8100276A1 ES8100276A1 (es) 1980-11-01
ES484097A0 true ES484097A0 (es) 1980-11-01

Family

ID=14562420

Family Applications (1)

Application Number Title Priority Date Filing Date
ES484097A Granted ES484097A0 (es) 1978-09-11 1979-09-11 Un procedimiento para la preparacion de nuevos derivados de-4-anilinoquinazolinas

Country Status (13)

Country Link
US (2) US4322420A (OSRAM)
JP (1) JPS5538325A (OSRAM)
BE (1) BE878723A (OSRAM)
CA (1) CA1151168A (OSRAM)
CH (1) CH642361A5 (OSRAM)
DE (1) DE2936705A1 (OSRAM)
DK (1) DK377079A (OSRAM)
ES (1) ES484097A0 (OSRAM)
FR (1) FR2435248A1 (OSRAM)
GB (1) GB2033894B (OSRAM)
IT (1) IT1119933B (OSRAM)
NL (1) NL7906761A (OSRAM)
SE (1) SE446337B (OSRAM)

Families Citing this family (92)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5538325A (en) * 1978-09-11 1980-03-17 Sankyo Co Ltd 4-anilinoquinazoline derivative and its preparation
JPS57144266A (en) * 1981-03-04 1982-09-06 Sankyo Co Ltd 4-anilinoquinazoline derivative, its preparation, and analgesic and antiphlogistic agent containing said derivative as active component
JP2676082B2 (ja) * 1987-12-25 1997-11-12 住友化学工業株式会社 ゴキブリ防除用マイクロカプセル剤
US6645969B1 (en) 1991-05-10 2003-11-11 Aventis Pharmaceuticals Inc. Aryl and heteroaryl quinazoline compounds which inhibit CSF-1R receptor tyrosine kinase
US5721237A (en) * 1991-05-10 1998-02-24 Rhone-Poulenc Rorer Pharmaceuticals Inc. Protein tyrosine kinase aryl and heteroaryl quinazoline compounds having selective inhibition of HER-2 autophosphorylation properties
US5480883A (en) * 1991-05-10 1996-01-02 Rhone-Poulenc Rorer Pharmaceuticals Inc. Bis mono- and bicyclic aryl and heteroaryl compounds which inhibit EGF and/or PDGF receptor tyrosine kinase
USRE37650E1 (en) 1991-05-10 2002-04-09 Aventis Pharmacetical Products, Inc. Aryl and heteroaryl quinazoline compounds which inhibit CSF-1R receptor tyrosine kinase
US5714493A (en) * 1991-05-10 1998-02-03 Rhone-Poulenc Rorer Pharmaceuticals, Inc. Aryl and heteroaryl quinazoline compounds which inhibit CSF-1R receptor tyrosine kinase
US5710158A (en) * 1991-05-10 1998-01-20 Rhone-Poulenc Rorer Pharmaceuticals Inc. Aryl and heteroaryl quinazoline compounds which inhibit EGF and/or PDGF receptor tyrosine kinase
DK0584222T3 (da) * 1991-05-10 1998-02-23 Rhone Poulenc Rorer Int Bis-mono- og bicycliske aryl- og heteroarylforbindelser, som inhiberer EGF- og/eller PDGF-receptor-tyrosinkinase
US5733561A (en) * 1991-06-12 1998-03-31 Mitsui Toatsu Chemicals, Incorporated Insecticide composition and production process thereof
NZ243082A (en) 1991-06-28 1995-02-24 Ici Plc 4-anilino-quinazoline derivatives; pharmaceutical compositions, preparatory processes, and use thereof
US5234936A (en) * 1991-10-24 1993-08-10 American Home Products Corporation Pyrimidocycloalkanes as a ii antagonists
AU661533B2 (en) * 1992-01-20 1995-07-27 Astrazeneca Ab Quinazoline derivatives
ES2049659B1 (es) * 1992-10-08 1994-10-16 Ici Plc Una composicion farmaceutica a base de derivados de quinazolina con actividad anti-cancerigena.
GB9314893D0 (en) * 1993-07-19 1993-09-01 Zeneca Ltd Quinazoline derivatives
AU739382B2 (en) * 1993-12-10 2001-10-11 Aventis Pharmaceuticals Inc. Aryl and heteroaryl quinazoline compounds which inhibit CSF-1R receptor tyrosine kinase
US6232465B1 (en) 1994-09-02 2001-05-15 Andrew C. Hiatt Compositions for enzyme catalyzed template-independent creation of phosphodiester bonds using protected nucleotides
US6214987B1 (en) 1994-09-02 2001-04-10 Andrew C. Hiatt Compositions for enzyme catalyzed template-independent formation of phosphodiester bonds using protected nucleotides
TW321649B (OSRAM) * 1994-11-12 1997-12-01 Zeneca Ltd
GB9424233D0 (en) * 1994-11-30 1995-01-18 Zeneca Ltd Quinazoline derivatives
AU5343096A (en) * 1995-04-27 1996-11-18 Zeneca Limited Quinazoline derivatives
GB9508565D0 (en) * 1995-04-27 1995-06-14 Zeneca Ltd Quiazoline derivative
GB9508538D0 (en) * 1995-04-27 1995-06-14 Zeneca Ltd Quinazoline derivatives
GB9508537D0 (en) * 1995-04-27 1995-06-14 Zeneca Ltd Quinazoline derivatives
GB9508535D0 (en) * 1995-04-27 1995-06-14 Zeneca Ltd Quinazoline derivative
US5747498A (en) 1996-05-28 1998-05-05 Pfizer Inc. Alkynyl and azido-substituted 4-anilinoquinazolines
GB9624482D0 (en) * 1995-12-18 1997-01-15 Zeneca Phaema S A Chemical compounds
US6184225B1 (en) 1996-02-13 2001-02-06 Zeneca Limited Quinazoline derivatives as VEGF inhibitors
GB9603095D0 (en) 1996-02-14 1996-04-10 Zeneca Ltd Quinazoline derivatives
GB9603097D0 (en) * 1996-02-14 1996-04-10 Zeneca Ltd Quinazoline compounds
DE69709319T2 (de) * 1996-03-05 2002-08-14 Astrazeneca Ab, Soedertaelje 4-anilinochinazolin derivate
GB9607729D0 (en) * 1996-04-13 1996-06-19 Zeneca Ltd Quinazoline derivatives
GB9718972D0 (en) 1996-09-25 1997-11-12 Zeneca Ltd Chemical compounds
US5939421A (en) * 1997-07-01 1999-08-17 Signal Pharmaceuticals, Inc. Quinazoline analogs and related compounds and methods for treating inflammatory conditions
US6706721B1 (en) * 1998-04-29 2004-03-16 Osi Pharmaceuticals, Inc. N-(3-ethynylphenylamino)-6,7-bis(2-methoxyethoxy)-4-quinazolinamine mesylate anhydrate and monohydrate
AU4317399A (en) 1998-05-28 1999-12-13 Parker Hughes Institute Quinazolines for treating brain tumor
US6800649B1 (en) 1998-06-30 2004-10-05 Parker Hughes Institute Method for inhibiting c-jun expression using JAK-3 inhibitors
WO2000010981A1 (en) 1998-08-21 2000-03-02 Parker Hughes Institute Quinazoline derivatives
US6080747A (en) 1999-03-05 2000-06-27 Hughes Institute JAK-3 inhibitors for treating allergic disorders
US6258820B1 (en) 1999-03-19 2001-07-10 Parker Hughes Institute Synthesis and anti-tumor activity of 6,7-dialkoxy-4-phenylamino-quinazolines
ES2306306T3 (es) 1999-11-05 2008-11-01 Astrazeneca Ab Nuevos derivados de quinazolina.
UA74803C2 (uk) 1999-11-11 2006-02-15 Осі Фармасьютікалз, Інк. Стійкий поліморф гідрохлориду n-(3-етинілфеніл)-6,7-біс(2-метоксіетокси)-4-хіназолінаміну, спосіб його одержання (варіанти) та фармацевтичне застосування
US7087613B2 (en) * 1999-11-11 2006-08-08 Osi Pharmaceuticals, Inc. Treating abnormal cell growth with a stable polymorph of N-(3-ethynylphenyl)-6,7-bis(2-methoxyethoxy)-4-quinazolinamine hydrochloride
ATE334973T1 (de) 2000-04-07 2006-08-15 Astrazeneca Ab Chinazolinverbindungen
UA73993C2 (uk) 2000-06-06 2005-10-17 Астразенека Аб Хіназолінові похідні для лікування пухлин та фармацевтична композиція
JP4202250B2 (ja) 2001-07-25 2008-12-24 バイオマリン ファーマシューティカル インコーポレイテッド 血液脳関門輸送を調節するための組成物および方法
GB0126433D0 (en) * 2001-11-03 2002-01-02 Astrazeneca Ab Compounds
MXPA04004219A (es) * 2001-11-03 2004-09-10 Astrazeneca Ab Derivados de quinazolina como agentes antitumorales.
TW200813014A (en) * 2002-03-28 2008-03-16 Astrazeneca Ab Quinazoline derivatives
US6924285B2 (en) * 2002-03-30 2005-08-02 Boehringer Ingelheim Pharma Gmbh & Co. Bicyclic heterocyclic compounds, pharmaceutical compositions containing these compounds, their use and process for preparing them
GB0309009D0 (en) * 2003-04-22 2003-05-28 Astrazeneca Ab Quinazoline derivatives
GB0309850D0 (en) * 2003-04-30 2003-06-04 Astrazeneca Ab Quinazoline derivatives
US8309562B2 (en) 2003-07-03 2012-11-13 Myrexis, Inc. Compounds and therapeutical use thereof
WO2005003100A2 (en) * 2003-07-03 2005-01-13 Myriad Genetics, Inc. 4-arylamino-quinazolines as activators of caspases and inducers of apoptosis
GB0317665D0 (en) 2003-07-29 2003-09-03 Astrazeneca Ab Qinazoline derivatives
BRPI0414447A (pt) * 2003-09-16 2006-11-14 Astrazeneca Ab derivado de quinazolina, composição farmacêutica, e, processo para a preparação de um derivado de quinazolina
GB0321648D0 (en) * 2003-09-16 2003-10-15 Astrazeneca Ab Quinazoline derivatives
UA83252C2 (uk) 2003-09-19 2008-06-25 Астразенека Аб Похідні хіназоліну, спосіб їх одержання (варіанти), фармацевтична композиція на їх основі, проміжна сполука
JP2007505878A (ja) * 2003-09-19 2007-03-15 アストラゼネカ アクチボラグ キナゾリン誘導体
AU2004276055A1 (en) * 2003-09-25 2005-04-07 Astrazeneca Ab Quinazoline derivatives
JP2007509985A (ja) * 2003-10-31 2007-04-19 ニューロジェン・コーポレーション カプサイシン受容体作動薬
GB0326459D0 (en) * 2003-11-13 2003-12-17 Astrazeneca Ab Quinazoline derivatives
AU2005250224A1 (en) * 2004-06-04 2005-12-15 Astrazeneca Ab Quinazoline derivatives as ERBB receptor tyrosine kinases
US20070244114A1 (en) * 2004-07-06 2007-10-18 Myriad Genetics, Incorporated Compounds and therapeutical use thereof
EP1838712B8 (en) 2004-12-14 2011-10-12 AstraZeneca AB Pyrazolopyrimidine compounds as antitumor agents
CA2592900A1 (en) 2005-01-03 2006-07-13 Myriad Genetics Inc. Nitrogen containing bicyclic compounds and therapeutical use thereof
US8258145B2 (en) * 2005-01-03 2012-09-04 Myrexis, Inc. Method of treating brain cancer
KR20070107151A (ko) * 2005-02-26 2007-11-06 아스트라제네카 아베 티로신 키나제 억제제로서의 퀴나졸린 유도체
GB0504474D0 (en) * 2005-03-04 2005-04-13 Astrazeneca Ab Chemical compounds
CA2608144C (en) 2005-04-28 2012-11-13 Proteus Biomedical, Inc. Pharma-informatics system
GB0508717D0 (en) * 2005-04-29 2005-06-08 Astrazeneca Ab Chemical compounds
GB0508715D0 (en) * 2005-04-29 2005-06-08 Astrazeneca Ab Chemical compounds
US7820683B2 (en) * 2005-09-20 2010-10-26 Astrazeneca Ab 4-(1H-indazol-5-yl-amino)-quinazoline compounds as erbB receptor tyrosine kinase inhibitors for the treatment of cancer
US20090239861A1 (en) * 2005-09-20 2009-09-24 Robert Hugh Bradbury Quinazoline derivatives as anticancer agents
ATE443053T1 (de) * 2005-12-02 2009-10-15 Astrazeneca Ab Als inhibitoren von erbb-tyrosinkinase verwendete chinazoleinderivate
WO2007063291A1 (en) * 2005-12-02 2007-06-07 Astrazeneca Ab 4-anilino-substituted quinazoline derivatives as tyrosine kinase inhibitors
US20070231298A1 (en) * 2006-03-31 2007-10-04 Cell Genesys, Inc. Cytokine-expressing cancer immunotherapy combinations
US9259426B2 (en) * 2006-07-20 2016-02-16 Gilead Sciences, Inc. 4,6-di- and 2,4,6-trisubstituted quinazoline derivatives useful for treating viral infections
US8246966B2 (en) * 2006-08-07 2012-08-21 University Of Georgia Research Foundation, Inc. Trypanosome microsome system and uses thereof
EP2063905B1 (en) 2006-09-18 2014-07-30 Raptor Pharmaceutical Inc Treatment of liver disorders by administration of receptor-associated protein (rap)-conjugates
EP1921070A1 (de) * 2006-11-10 2008-05-14 Boehringer Ingelheim Pharma GmbH & Co. KG Bicyclische Heterocyclen, diese Verbindungen enthaltende Arzneimittel, deren Verwendung und Verfahren zu ihrer Herstelllung
EP2088863A2 (en) * 2006-11-22 2009-08-19 University Of Georgia Research Foundation, Inc. Tyrosine kinase inhibitors as anti-kinetolastid and anti-apicomplexan agents
AU2008212999A1 (en) 2007-02-06 2008-08-14 Boehringer Ingelheim International Gmbh Bicyclic heterocycles, drugs containing said compounds, use thereof, and method for production thereof
BRPI0907916A2 (pt) 2008-02-07 2015-07-28 Boehringer Ingelheim Int Heterociclos espirociclos, medicamentos contendo esses compostos, e processos para preparar os mesmos
JP5739802B2 (ja) 2008-05-13 2015-06-24 アストラゼネカ アクチボラグ 4−(3−クロロ−2−フルオロアニリノ)−7−メトキシ−6−{[1−(n−メチルカルバモイルメチル)ピペリジン−4−イル]オキシ}キナゾリンのフマル酸塩
JP5539351B2 (ja) * 2008-08-08 2014-07-02 ベーリンガー インゲルハイム インターナショナル ゲゼルシャフト ミット ベシュレンクテル ハフツング シクロヘキシルオキシ置換ヘテロ環、これらの化合物を含有する医薬、およびそれらを生成するための方法
ES2919563T3 (es) 2009-02-20 2022-07-27 Enhanx Biopharm Inc Sistema de administración de medicamentos a base de glutatión
KR101741629B1 (ko) 2009-05-06 2017-05-31 라보라토리 스킨 케어, 인크. 활성제-칼슘 포스페이트 입자 복합체를 포함하는 피부 전달 조성물 및 이들을 이용하는 방법
US20120077778A1 (en) 2010-09-29 2012-03-29 Andrea Bourdelais Ladder-Frame Polyether Conjugates
CN110372666B (zh) * 2018-04-13 2022-11-08 华东理工大学 喹唑啉类化合物作为egfr三突变抑制剂及其应用
AU2020241703A1 (en) * 2019-03-15 2021-10-14 The Regents Of The University Of California Compositions and methods for treating cancer

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1724086A (en) * 1929-08-13 Eentrich astd max hardtmankt
US2794018A (en) * 1953-08-07 1957-05-28 New quinazoline derivatives
CH492395A (de) * 1966-04-26 1970-06-30 Sandoz Ag Mittel zur Bekämpfung von Pflanzenschädlingen und Verwendung des Mittels
US3560619A (en) * 1967-01-03 1971-02-02 Mead Johnson & Co Aminoquinazolines and quinazolones in treatment of coccidiosis
US3702849A (en) * 1967-10-26 1972-11-14 Pfizer 4-(isoquinolin-1-yl) piperazine-1-carboxylic acid esters
US4041030A (en) * 1973-09-20 1977-08-09 Delalande S.A. Arylamino pyrimidinic derivatives
US3985749A (en) * 1975-12-22 1976-10-12 Eastman Kodak Company Process for preparation of 4-aminoquinazoline
JPS5538325A (en) * 1978-09-11 1980-03-17 Sankyo Co Ltd 4-anilinoquinazoline derivative and its preparation

Also Published As

Publication number Publication date
ES8100276A1 (es) 1980-11-01
US4322420A (en) 1982-03-30
NL7906761A (nl) 1980-03-13
IT1119933B (it) 1986-03-19
SE7907493L (sv) 1980-03-12
FR2435248A1 (fr) 1980-04-04
FR2435248B1 (OSRAM) 1983-02-18
JPS626546B2 (OSRAM) 1987-02-12
CA1151168A (en) 1983-08-02
DK377079A (da) 1980-03-12
JPS5538325A (en) 1980-03-17
GB2033894A (en) 1980-05-29
BE878723A (fr) 1980-03-11
CH642361A5 (de) 1984-04-13
US4464375A (en) 1984-08-07
GB2033894B (en) 1983-02-16
DE2936705A1 (de) 1980-03-20
IT7968794A0 (it) 1979-09-10
SE446337B (sv) 1986-09-01

Similar Documents

Publication Publication Date Title
ES484097A0 (es) Un procedimiento para la preparacion de nuevos derivados de-4-anilinoquinazolinas
ES490215A0 (es) Un procedimiento para la preparacion de derivados de feneta-nolamina
ES494300A0 (es) Un procedimiento para la preparacion de carboxialquil-dipep-tidos
ES488676A0 (es) Un procedimiento para la preparacion de nuevos derivados he-terociclicos
ES505548A0 (es) Un procedimiento para la preparacion de nuevos derivados de diarilaminofluorano
ES485620A0 (es) Un procedimiento para la preparacion de derivados de diben- zopirano
AR222204A1 (es) Un procedimiento para la preparacion de derivados de i-bencilimidazol
ES490213A0 (es) Un procedimiento para la preparacion de fenetanolaminas
ES484382A0 (es) Un procedimiento para la preparacion de nuevos derivados de 2-pirrolidin-metanol.
ES488210A0 (es) Un procedimiento para la preparacion de nuevos derivados de quinazolina
ES493204A0 (es) Un procedimiento para la preparacion de fenil-quinolicidinas
ES496487A0 (es) Un procedimiento para la preparacion de nuevos derivados hi-droxialquil-triazoles
ES482027A0 (es) Un procedimiento para la preparacion de nuevos derivados de fenetilamina.
ES491992A0 (es) Un procedimiento para la preparacion de nuevos derivados de hidroxiamino-eburnano
AR225285A1 (es) Un procedimiento para la preparacion de derivados de 2-(hetmetilticetilamino)-3-nitro-pirrol
ES484890A0 (es) Un procedimiento para la preparacion de derivados de ciclo- hexadieno
ES489048A0 (es) Un procedimiento para la preparacion de derivados de hidan- toina
AR222208A1 (es) Un procedimiento para la preparacion de derivados de 4-amino-2-piperidino-quinazolina
ES489645A0 (es) Un procedimiento para la preparacion de derivados de cefa- losporina
ES490617A0 (es) Un procedimiento para la preparacion de derivados de oxadia-zolotriazona
ES493200A0 (es) Un procedimiento para la preparacion de fenil-quinolicidinas
ES491975A0 (es) Un procedimiento para la preparacion de derivados de amino- alcoholes
ES490616A0 (es) Un procedimiento para la preparacion de derivados de oxadia-zolotriazona
MX5587E (es) Un procedimiento para la preparacion de 2-cloro-4-etilamino-6-isopropilamino-s-triazina
ES486666A0 (es) Un procedimiento para la preparacion de carbetoxi-carbonila-mino-pirimidinas