CH482691A - Procédé de préparation de pipérazines 1,4-disubstituées - Google Patents

Procédé de préparation de pipérazines 1,4-disubstituées

Info

Publication number
CH482691A
CH482691A CH1141863A CH1141863A CH482691A CH 482691 A CH482691 A CH 482691A CH 1141863 A CH1141863 A CH 1141863A CH 1141863 A CH1141863 A CH 1141863A CH 482691 A CH482691 A CH 482691A
Authority
CH
Switzerland
Prior art keywords
preparing
disubstituted piperazines
piperazines
disubstituted
Prior art date
Application number
CH1141863A
Other languages
English (en)
French (fr)
Inventor
Stephen Tomcufcik Andrew
Frank Fabio Paul
May Hoffman Arlene
Original Assignee
American Cyanamid Co
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 American Cyanamid Co filed Critical American Cyanamid Co
Priority to CH1174870A priority Critical patent/CH514608A/fr
Priority to CH842566A priority patent/CH499524A/fr
Priority to CH735968A priority patent/CH484160A/fr
Publication of CH482691A publication Critical patent/CH482691A/fr

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D295/00Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms
    • C07D295/16Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms acylated on ring nitrogen atoms
    • C07D295/18Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms acylated on ring nitrogen atoms by radicals derived from carboxylic acids, or sulfur or nitrogen analogues thereof
    • C07D295/182Radicals derived from carboxylic acids
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00Medicinal preparations containing organic active ingredients
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D215/00Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems
    • C07D215/02Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen atoms or carbon atoms directly attached to the ring nitrogen atom
    • C07D215/16Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen atoms or carbon atoms directly attached to the ring nitrogen atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D215/48Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D295/00Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms
    • C07D295/04Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms with substituted hydrocarbon radicals attached to ring nitrogen atoms
    • C07D295/12Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms with substituted hydrocarbon radicals attached to ring nitrogen atoms substituted by singly or doubly bound nitrogen atoms
    • C07D295/125Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms with substituted hydrocarbon radicals attached to ring nitrogen atoms substituted by singly or doubly bound nitrogen atoms with the ring nitrogen atoms and the substituent nitrogen atoms attached to the same carbon chain, which is not interrupted by carbocyclic rings
    • C07D295/13Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms with substituted hydrocarbon radicals attached to ring nitrogen atoms substituted by singly or doubly bound nitrogen atoms with the ring nitrogen atoms and the substituent nitrogen atoms attached to the same carbon chain, which is not interrupted by carbocyclic rings to an acyclic saturated chain
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D295/00Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms
    • C07D295/16Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms acylated on ring nitrogen atoms
    • C07D295/18Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms acylated on ring nitrogen atoms by radicals derived from carboxylic acids, or sulfur or nitrogen analogues thereof
    • C07D295/182Radicals derived from carboxylic acids
    • C07D295/192Radicals derived from carboxylic acids from aromatic carboxylic acids
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D295/00Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms
    • C07D295/16Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms acylated on ring nitrogen atoms
    • C07D295/20Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms acylated on ring nitrogen atoms by radicals derived from carbonic acid, or sulfur or nitrogen analogues thereof
    • C07D295/205Radicals derived from carbonic acid
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09BORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B43/00Preparation of azo dyes from other azo compounds
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/30Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Plural Heterocyclic Compounds (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
CH1141863A 1963-04-04 1963-09-16 Procédé de préparation de pipérazines 1,4-disubstituées CH482691A (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CH1174870A CH514608A (fr) 1963-04-04 1963-09-16 Procédé de préparation de pipérazines 1,4-disubstituées
CH842566A CH499524A (fr) 1963-04-04 1963-09-16 Procédé de préparation de pipérazines 1,4-disubstituées
CH735968A CH484160A (fr) 1963-04-04 1963-09-16 Procédé de préparation de pipérazines 1,4-disubstituées

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US27053463A 1963-04-04 1963-04-04
US27053663A 1963-04-04 1963-04-04
US27053763A 1963-04-04 1963-04-04
US37971464A 1964-07-01 1964-07-01
US468142A US3331843A (en) 1963-04-04 1965-06-29 1-substituted-4-substituted aminoalkylene piperazines
US468143A US3331830A (en) 1963-04-04 1965-06-29 1-substituted-4-substituted aminoalkylene piperazines

Publications (1)

Publication Number Publication Date
CH482691A true CH482691A (fr) 1969-12-15

Family

ID=27559486

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1141863A CH482691A (fr) 1963-04-04 1963-09-16 Procédé de préparation de pipérazines 1,4-disubstituées

Country Status (13)

Country Link
US (2) US3331830A (en:Method)
BE (1) BE637271A (en:Method)
BR (1) BR6352303D0 (en:Method)
CH (1) CH482691A (en:Method)
DE (1) DE1445425A1 (en:Method)
FI (2) FI41280C (en:Method)
FR (1) FR3708M (en:Method)
GB (1) GB1047935A (en:Method)
LU (1) LU44424A1 (en:Method)
MC (1) MC435A1 (en:Method)
NL (1) NL297170A (en:Method)
NO (1) NO117694B (en:Method)
SE (2) SE320667B (en:Method)

Families Citing this family (51)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1165283A (en) * 1967-01-17 1969-09-24 Science Union & Cie New Purine Derivatives and processes for prepararing them
US3491098A (en) * 1967-05-29 1970-01-20 Sterling Drug Inc 1-((imidazolyl)-lower-alkyl)-4-substituted-piperazines
GB1279843A (en) * 1969-05-23 1972-06-28 Science Union & Cie Benzamidoethyl-piperazines and process for their preparation
US4081542A (en) * 1975-04-21 1978-03-28 Merck & Co., Inc. Piperazinylpyrazines
CH653021A5 (fr) * 1981-04-24 1985-12-13 Delalande Sa Derives piperidino, piperazino et homopiperazino, n-substitues par un groupe heterocyclique aromatique, leur procede de preparation et composition therapeutique les contenant.
US4457931A (en) * 1982-09-27 1984-07-03 Selvi & C. S.P.A. Piperazine derivatives with anticholinergic and/or antihistaminic activity
HUT43600A (en) * 1985-06-22 1987-11-30 Sandoz Ag Process for production of new thiazole derivatives and medical compound containing those
US5057517A (en) * 1987-07-20 1991-10-15 Merck & Co., Inc. Piperazinyl derivatives of purines and isosteres thereof as hypoglycemic agents
US4977156A (en) * 1988-07-26 1990-12-11 The Dow Chemical Company Amino piperazine esters showing biocidal activity
US5032604A (en) * 1989-12-08 1991-07-16 Merck & Co., Inc. Class III antiarrhythmic agents
JP3193560B2 (ja) * 1993-04-16 2001-07-30 明治製菓株式会社 新規ベンゾオキサゾール誘導体
US6355643B1 (en) 1999-03-03 2002-03-12 Merck & Co., Inc. Inhibitors of prenyl-protein transferase
US6358956B1 (en) 1999-03-03 2002-03-19 Merck & Co., Inc. Inhibitors of prenyl-protein transferase
KR20010085555A (ko) * 1999-06-24 2001-09-07 히라이 가쯔히꼬 아드레날린 알파1비 수용체 길항약
AU6936500A (en) * 1999-08-24 2001-03-19 Regents Of The University Of California, The Non-quinoline inhibitors of malaria parasites
CA2475764C (en) 2002-03-13 2011-05-31 Janssen Pharmaceutica N.V. New inhibitors of histone deacetylase
ES2307909T3 (es) * 2002-03-13 2008-12-01 Janssen Pharmaceutica Nv Derivados de piperazinil, piperidinil y morfolinil como nuevos inhidbidores de la histona deacetilasa.
CA2476067C (en) 2002-03-13 2011-09-20 Janssen Pharmaceutica N.V. Carbonylamino-derivatives as novel inhibitors of histone deacetylase
MXPA04007776A (es) 2002-03-13 2004-10-15 Janssen Pharmaceutica Nv Derivados de sulfonilamino como nuevos inhibidores de histona deacetilasa.
AU2005266312C1 (en) * 2004-07-28 2011-06-16 Janssen Pharmaceutica N.V. Substituted indolyl alkyl amino derivatives as novel inhibitors of histone deacetylase
UY29177A1 (es) * 2004-10-25 2006-05-31 Astex Therapeutics Ltd Derivados sustituidos de purina, purinona y deazapurina, composiciones que los contienen métodos para su preparación y sus usos
MY179032A (en) 2004-10-25 2020-10-26 Cancer Research Tech Ltd Ortho-condensed pyridine and pyrimidine derivatives (e.g.purines) as protein kinase inhibitors
EP1848428A4 (en) 2005-02-18 2012-04-18 Neurogen Corp THIAZOLE AMIDES, IMIDAZOLE AMIDES AND RELATED ANALOGS
US8138198B2 (en) 2005-05-18 2012-03-20 Angibaud Patrick Rene Substituted aminopropenyl piperidine or morpholine derivatives as novel inhibitors of histone deacetylase
CA2631876C (en) * 2006-01-19 2014-05-27 Janssen Pharmaceutica N.V. Aminophenyl derivatives as inhibitors of histone deacetylase
WO2007082874A1 (en) * 2006-01-19 2007-07-26 Janssen Pharmaceutica N.V. Pyridine and pyrimidine derivatives as inhibitors of histone deacetylase
WO2007082876A1 (en) * 2006-01-19 2007-07-26 Janssen Pharmaceutica N.V. Pyridine and pyrimidine derivatives as inhibitors of histone deacetylase
WO2007082882A1 (en) * 2006-01-19 2007-07-26 Janssen Pharmaceutica N.V. Substituted indolyl-alkyl-amino-derivatives as inhibitors of histone deacetylase
EP3421471B1 (en) 2006-04-25 2021-05-26 Astex Therapeutics Limited Purine and deazapurine derivatives as pharmaceutical compounds
BRPI0814424A2 (pt) 2007-07-19 2015-01-06 Hoffmann La Roche Compostos heterociclila
AU2008290329B2 (en) * 2007-08-22 2011-12-22 Astrazeneca Ab Cyclopropyl amide derivatives
PL2201012T3 (pl) 2007-10-11 2014-11-28 Astrazeneca Ab Pochodne pirolo[2,3-d]pirymidyny jako inhibitory kinazy białkowej b
EP2212310A4 (en) * 2007-10-15 2011-04-20 Elder Pharmaceuticals Ltd INDUSTRIALLY MANUFACTURED PROCESS FOR THE PRODUCTION OF BISQUINOLINE DERIVATIVES USING SUBSTANTIALLY PURE N-MONOSUBSTITUTED PIPERAZINES
TW201039825A (en) * 2009-02-20 2010-11-16 Astrazeneca Ab Cyclopropyl amide derivatives 983
FR2945289A1 (fr) * 2009-05-11 2010-11-12 Sanofi Aventis Derives de 2-cycloamino-5-(pyridin-4-yl)imidazo°2,1-b! °1,3,4!thiadiazole, leur preparation et leur application en therapeutique
WO2011095885A1 (en) * 2010-02-08 2011-08-11 Matrix Laboratories Ltd. An improved process for the preparation of piperaquine
AU2011218490B9 (en) * 2010-02-18 2014-12-18 Astrazeneca Ab Solid forms comprising a cyclopropyl amide derivative
CA2788444A1 (en) * 2010-02-18 2011-08-25 Astrazeneca Ab New crystalline form of a cyclopropyl benzamide derivative
JP6080837B2 (ja) 2011-04-01 2017-02-15 アストラゼネカ アクチボラグ 療法的治療
AU2012266501A1 (en) 2011-06-06 2013-11-21 Sigma-Tau Industrie Farmaceutiche Riunite S.P.A. Novel process for the synthesis of 7-chloro-4-(piperazin-1-yl)-quinoline
PL2785349T5 (pl) 2011-11-30 2023-01-30 Astrazeneca Ab Kombinacja do leczenia nowotworu
AU2013204533B2 (en) 2012-04-17 2017-02-02 Astrazeneca Ab Crystalline forms
PT3386511T (pt) 2015-12-10 2021-07-14 Ptc Therapeutics Inc Métodos para tratamento da doença de huntington
EP4151627A1 (en) 2017-06-05 2023-03-22 PTC Therapeutics, Inc. Compounds for treating huntington's disease
BR112019027717A2 (pt) 2017-06-28 2020-07-28 Ptc Therapeutics, Inc. métodos para tratar a doença de huntington
WO2019005993A1 (en) 2017-06-28 2019-01-03 Ptc Therapeutics, Inc. METHODS OF TREATING HUNTINGTON'S DISEASE
EA202092001A1 (ru) 2018-03-27 2021-01-29 ПиТиСи ТЕРАПЬЮТИКС, ИНК. Соединения для лечения болезни гентингтона
CN110606830B (zh) * 2018-06-14 2022-03-18 珠海润都制药股份有限公司 一种哌嗪套用生产磷酸哌喹中间体喹啉哌嗪盐酸盐的方法
JP7515415B2 (ja) 2018-06-27 2024-07-12 ピーティーシー セラピューティクス, インコーポレイテッド ハンチントン病を処置するためのヘテロアリール化合物
US11685746B2 (en) 2018-06-27 2023-06-27 Ptc Therapeutics, Inc. Heteroaryl compounds for treating Huntington's disease
SMT202400286T1 (it) 2018-06-27 2024-09-16 Ptc Therapeutics Inc Composti eterociclici ed eteroarilici per il trattamento della corea di huntington

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2513026A (en) * 1950-06-27 Process for preparing same
NL72956C (en:Method) * 1947-11-12
US2861072A (en) * 1952-07-19 1958-11-18 Abbott Lab Preparation of piperazine derivatives
US2794804A (en) * 1955-03-24 1957-06-04 American Cyanamid Co Substituted piperazines and method of preparing the same
US2949431A (en) * 1957-07-17 1960-08-16 Mobay Chemical Corp Preparation of cellular polyurethanes using piperazine catalysts
US3098066A (en) * 1960-03-04 1963-07-16 Ciba Geigy Corp Diaza-heterocyclic guanidine compounds
US3015657A (en) * 1959-05-28 1962-01-02 Charles F Geschickter 1-carbalkoxy-4-(aminoalkanol) piperazines
US3030366A (en) * 1961-01-25 1962-04-17 Lakeside Lab Inc Piperazinoalkyl glycolamides
FR1525M (fr) * 1961-07-25 1962-11-16 Ile De France Médicaments antiémétiques nouveaux.
US3190883A (en) * 1962-10-05 1965-06-22 Geschickter Fund Med Res Aminoalkanol derivatives of piperazines
US3184382A (en) * 1963-08-12 1965-05-18 Pure Oil Co Method of producing tranquilization by hydroxy-loweralkyl-n-substituted carbamic acid esters

Also Published As

Publication number Publication date
MC435A1 (fr) 1964-07-06
FI42440C (fi) 1970-08-10
US3331843A (en) 1967-07-18
NL297170A (en:Method) 1900-01-01
GB1047935A (en) 1966-11-09
LU44424A1 (en:Method) 1963-11-11
DE1445425A1 (de) 1968-10-31
BR6352303D0 (pt) 1973-07-17
US3331830A (en) 1967-07-18
FI42440B (en:Method) 1970-04-30
BE637271A (en:Method) 1900-01-01
FI41280B (en:Method) 1969-06-30
FI41280C (fi) 1969-10-10
SE320667B (en:Method) 1970-02-16
NO117694B (en:Method) 1969-09-15
FR3708M (fr) 1965-11-29
SE346316B (en:Method) 1972-07-03

Similar Documents

Publication Publication Date Title
CH482691A (fr) Procédé de préparation de pipérazines 1,4-disubstituées
CH438294A (fr) Procédé de préparation de la périplogénine
CH429748A (fr) Procédé de préparation d'une 2-N-aroyl-2', 3'-0-isopropylidène-guanosine
FR1335831A (fr) Procédé de préparation de nu-(3, 3-diphényl-3-alcanoyl)-propylspiro
FR1370795A (fr) Procédé de préparation de benzo-gamma-pyrones substituées en 3
FR1397573A (fr) Procédé de préparation de 2. 6-dichloro-benzonitrile
FR1403372A (fr) Procédé de préparation de 5-aminopyrazols substitués
FR1377140A (fr) Procédé de préparation du 2-méthyl-2-secondobutylpropanediol-1, 3
FR94701E (fr) Pipérazines-1,4-disubstituées et procédé pour leur préparation.
FR1391609A (fr) Procédé de préparation d'aldéhydes
FR1392872A (fr) Procédé de préparation des phtaloylpyrrocolines
FR1405725A (fr) Procédé de préparation de la 5, 5-diméthyl-4-iminohydantoine
CH414633A (fr) Procédé de préparation de di-acyl-3,4 pyridoxines
FR1401077A (fr) Procédé perfectionné de préparation du 1, 2, 3, 4-tétrachlorobutane
CH428696A (fr) Procédé de préparation d'alcoyl-cyclopentane-diones
FR1434172A (fr) Procédé de préparation de nouvelles oestrones substituées
FR1381649A (fr) Procédé de préparation de 5-androstènes 3, 19-disubstitués
FR1356114A (fr) Procédé de préparation de trans-diméthylolcyclohexane-1, 4
FR1376209A (fr) Procédé de préparation de la triméthylène-1, 3, 5-trisulfone
FR1396616A (fr) Procédé perfectionné de préparation de diaminomonoazotriazines
FR1404689A (fr) Procédé de préparation de nouvelles lactones
FR1394286A (fr) Procédé de préparation d'oxazinones
FR1397085A (fr) Procédé de préparation du 1, 2-dicyanocyclobutane
FR1401076A (fr) Procédé de préparation du 1, 2, 3, 4-tétrachlorobutane
CH420166A (fr) Procédé de préparation d'w-lactames

Legal Events

Date Code Title Description
PL Patent ceased