FI58920C - Foerfarande foer framstaellning av blodkaerlsutvidgande (omega-1)-oxoalkyl-dialkylxantiner - Google Patents
Foerfarande foer framstaellning av blodkaerlsutvidgande (omega-1)-oxoalkyl-dialkylxantiner Download PDFInfo
- Publication number
- FI58920C FI58920C FI1819/74A FI181974A FI58920C FI 58920 C FI58920 C FI 58920C FI 1819/74 A FI1819/74 A FI 1819/74A FI 181974 A FI181974 A FI 181974A FI 58920 C FI58920 C FI 58920C
- Authority
- FI
- Finland
- Prior art keywords
- methyl
- oxohexyl
- xanthine
- oxoalkyl
- propylxanthine
- Prior art date
Links
- 150000001875 compounds Chemical class 0.000 claims description 30
- 125000004432 carbon atom Chemical group C* 0.000 claims description 24
- -1 alkali metal salt Chemical class 0.000 claims description 23
- LRFVTYWOQMYALW-UHFFFAOYSA-N 9H-xanthine Chemical compound O=C1NC(=O)NC2=C1NC=N2 LRFVTYWOQMYALW-UHFFFAOYSA-N 0.000 claims description 22
- 229940075420 xanthine Drugs 0.000 claims description 17
- 125000000217 alkyl group Chemical group 0.000 claims description 15
- 125000005188 oxoalkyl group Chemical group 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 9
- 238000002360 preparation method Methods 0.000 claims description 6
- 229910052783 alkali metal Inorganic materials 0.000 claims description 5
- 125000002947 alkylene group Chemical group 0.000 claims description 4
- 125000005843 halogen group Chemical group 0.000 claims description 4
- 238000003776 cleavage reaction Methods 0.000 claims description 3
- 150000002576 ketones Chemical class 0.000 claims description 3
- 230000007017 scission Effects 0.000 claims description 3
- 229940124549 vasodilator Drugs 0.000 claims description 3
- 239000003071 vasodilator agent Substances 0.000 claims description 3
- 239000003513 alkali Substances 0.000 claims description 2
- 150000001350 alkyl halides Chemical class 0.000 claims description 2
- 239000007795 chemical reaction product Substances 0.000 claims description 2
- 125000004429 atom Chemical group 0.000 claims 1
- 150000008050 dialkyl sulfates Chemical class 0.000 claims 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 95
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- 239000000243 solution Substances 0.000 description 26
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 20
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 18
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- 239000000047 product Substances 0.000 description 11
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- 238000002844 melting Methods 0.000 description 10
- 230000008018 melting Effects 0.000 description 10
- OXTJFLMERRCYFJ-UHFFFAOYSA-N 3-methyl-7-(5-oxohexyl)purine-2,6-dione Chemical compound CN1C(=O)NC(=O)C2=C1N=CN2CCCCC(=O)C OXTJFLMERRCYFJ-UHFFFAOYSA-N 0.000 description 9
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 9
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 9
- 229910000027 potassium carbonate Inorganic materials 0.000 description 9
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- 230000004087 circulation Effects 0.000 description 6
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- ARZOGANVDPBFCO-UHFFFAOYSA-N 3-methyl-1-(4-oxopentyl)-7-propylpurine-2,6-dione Chemical compound CN1C(=O)N(CCCC(C)=O)C(=O)C2=C1N=CN2CCC ARZOGANVDPBFCO-UHFFFAOYSA-N 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 5
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- HDAPVDGMACVEKL-UHFFFAOYSA-N 1,3-dibutyl-7h-purine-2,6-dione Chemical compound O=C1N(CCCC)C(=O)N(CCCC)C2=C1NC=N2 HDAPVDGMACVEKL-UHFFFAOYSA-N 0.000 description 4
- AHSKYWGYRVWJLX-UHFFFAOYSA-N 3-methyl-7-(2-methylpropyl)-1-(5-oxohexyl)purine-2,6-dione Chemical compound CN1C(=O)N(CCCCC(C)=O)C(=O)C2=C1N=CN2CC(C)C AHSKYWGYRVWJLX-UHFFFAOYSA-N 0.000 description 4
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 4
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- 230000002490 cerebral effect Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
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- INQOMBQAUSQDDS-UHFFFAOYSA-N iodomethane Chemical compound IC INQOMBQAUSQDDS-UHFFFAOYSA-N 0.000 description 4
- UDIGDODUJVQRPE-UHFFFAOYSA-N 1,3-dibutyl-7-(4-oxopentyl)purine-2,6-dione Chemical compound O=C1N(CCCC)C(=O)N(CCCC)C2=C1N(CCCC(C)=O)C=N2 UDIGDODUJVQRPE-UHFFFAOYSA-N 0.000 description 3
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- WQRASISGTROKJS-UHFFFAOYSA-N 3-methyl-1-(6-oxoheptyl)-7-propylpurine-2,6-dione Chemical compound CN1C(=O)N(CCCCCC(C)=O)C(=O)C2=C1N=CN2CCC WQRASISGTROKJS-UHFFFAOYSA-N 0.000 description 3
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- 235000011152 sodium sulphate Nutrition 0.000 description 3
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- LSCHHQQMFOMDFQ-UHFFFAOYSA-N 1-ethyl-3-methyl-7-(5-oxohexyl)purine-2,6-dione Chemical compound O=C1N(CC)C(=O)N(C)C2=C1N(CCCCC(C)=O)C=N2 LSCHHQQMFOMDFQ-UHFFFAOYSA-N 0.000 description 2
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- RTYRGIMUXABCRT-UHFFFAOYSA-N 7-decyl-3-methyl-1-(5-oxohexyl)purine-2,6-dione Chemical compound CN1C(=O)N(CCCCC(C)=O)C(=O)C2=C1N=CN2CCCCCCCCCC RTYRGIMUXABCRT-UHFFFAOYSA-N 0.000 description 1
- XYNBLDBVMROPEH-UHFFFAOYSA-N 7-hexyl-3-methylpurine-2,6-dione Chemical compound CN1C(=O)NC(=O)C2=C1N=CN2CCCCCC XYNBLDBVMROPEH-UHFFFAOYSA-N 0.000 description 1
- YZYPLLAMOKYMRE-UHFFFAOYSA-N 7-propyl-3h-purine-2,6-dione Chemical compound N1C(=O)NC(=O)C2=C1N=CN2CCC YZYPLLAMOKYMRE-UHFFFAOYSA-N 0.000 description 1
- OLFKREGNFXSTFO-UHFFFAOYSA-N 8-hexyl-3,7-dihydropurine-2,6-dione Chemical compound CCCCCCc1nc2[nH]c(=O)[nH]c(=O)c2[nH]1 OLFKREGNFXSTFO-UHFFFAOYSA-N 0.000 description 1
- 206010002091 Anaesthesia Diseases 0.000 description 1
- 206010005746 Blood pressure fluctuation Diseases 0.000 description 1
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical class CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 125000001539 acetonyl group Chemical group [H]C([H])([H])C(=O)C([H])([H])* 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 231100000460 acute oral toxicity Toxicity 0.000 description 1
- 231100000403 acute toxicity Toxicity 0.000 description 1
- 230000007059 acute toxicity Effects 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 230000037005 anaesthesia Effects 0.000 description 1
- 239000008346 aqueous phase Substances 0.000 description 1
- 230000004872 arterial blood pressure Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000002051 biphasic effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 230000036772 blood pressure Effects 0.000 description 1
- RDHPKYGYEGBMSE-UHFFFAOYSA-N bromoethane Chemical compound CCBr RDHPKYGYEGBMSE-UHFFFAOYSA-N 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 230000000747 cardiac effect Effects 0.000 description 1
- 230000003727 cerebral blood flow Effects 0.000 description 1
- 238000004587 chromatography analysis Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- DENRZWYUOJLTMF-UHFFFAOYSA-N diethyl sulfate Chemical compound CCOS(=O)(=O)OCC DENRZWYUOJLTMF-UHFFFAOYSA-N 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 210000001061 forehead Anatomy 0.000 description 1
- 210000003128 head Anatomy 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 125000004491 isohexyl group Chemical group C(CCC(C)C)* 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- SNMVRZFUUCLYTO-UHFFFAOYSA-N n-propyl chloride Chemical compound CCCCl SNMVRZFUUCLYTO-UHFFFAOYSA-N 0.000 description 1
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 239000012074 organic phase Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000020477 pH reduction Effects 0.000 description 1
- 239000008194 pharmaceutical composition Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- 238000007127 saponification reaction Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 210000003786 sclera Anatomy 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 229910021653 sulphate ion Inorganic materials 0.000 description 1
- 229960004559 theobromine Drugs 0.000 description 1
- 229960000278 theophylline Drugs 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D473/00—Heterocyclic compounds containing purine ring systems
- C07D473/02—Heterocyclic compounds containing purine ring systems with oxygen, sulphur, or nitrogen atoms directly attached in positions 2 and 6
- C07D473/04—Heterocyclic compounds containing purine ring systems with oxygen, sulphur, or nitrogen atoms directly attached in positions 2 and 6 two oxygen atoms
- C07D473/06—Heterocyclic 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P7/00—Drugs for disorders of the blood or the extracellular fluid
- A61P7/02—Antithrombotic agents; Anticoagulants; Platelet aggregation inhibitors
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P9/00—Drugs for disorders of the cardiovascular system
- A61P9/08—Vasodilators for multiple indications
Landscapes
- Organic Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Pharmacology & Pharmacy (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Veterinary Medicine (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Medicinal Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Public Health (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Hematology (AREA)
- Diabetes (AREA)
- Cardiology (AREA)
- Heart & Thoracic Surgery (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2330742A DE2330742C2 (de) | 1973-06-16 | 1973-06-16 | 1-(Oxoalkyl)-3-methyl-7-alkylxanthine, Verfahren zu ihrer Herstellung und diese enthaltende Arzneimittel |
| DE2330742 | 1973-06-16 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| FI181974A7 FI181974A7 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1974-12-17 |
| FI58920B FI58920B (fi) | 1981-01-30 |
| FI58920C true FI58920C (fi) | 1981-05-11 |
Family
ID=5884209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI1819/74A FI58920C (fi) | 1973-06-16 | 1974-06-14 | Foerfarande foer framstaellning av blodkaerlsutvidgande (omega-1)-oxoalkyl-dialkylxantiner |
Country Status (17)
Families Citing this family (32)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH608236A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1974-01-22 | 1978-12-29 | Wuelfing J A Fa | |
| DE2507554A1 (de) * | 1975-02-21 | 1976-09-02 | Wuelfing J A Fa | 7-(oxoalkyl)-1,3-dialkylxanthine, verfahren zu ihrer herstellung und diese verbindungen enthaltende arzneimittel |
| DE2507555A1 (de) * | 1975-02-21 | 1976-09-02 | Wuelfing J A Fa | 7-(oxoalkyl)-1,3-dialkylxanthine, verfahren zu ihrer herstellung und diese verbindung enthaltende arzneimittel |
| JPS54112893A (en) * | 1978-02-21 | 1979-09-04 | Kohjin Co Ltd | Preparation of 1-(5'-oxohexyl)-3,7-diethylxanthine |
| DE2967632D1 (en) * | 1978-04-22 | 1986-12-04 | Beecham Wuelfing Gmbh & Co Kg | Use of a xanthine derivate in the manufacture of a medicament |
| IL59665A0 (en) * | 1979-04-05 | 1980-06-30 | Wuelfing J Kg | Xanthine derivatives,process for their preparation and their use in pharmaceutical compositions |
| EP0157098A1 (en) * | 1980-06-21 | 1985-10-09 | Beecham Wuelfing GmbH & Co KG | Xanthine derivatives, pharmaceuticals compositions containing them and a process for their preparation |
| US4636507A (en) * | 1984-04-30 | 1987-01-13 | Hoechst-Roussel Pharmaceuticals Inc. | Host defense mechanism enhancement |
| JPH062675B2 (ja) * | 1985-04-05 | 1994-01-12 | ヘキストジヤパン株式会社 | 記憶障害治療剤 |
| GB8621869D0 (en) * | 1986-09-11 | 1986-10-15 | Beecham Group Plc | Treatment |
| JPS63225317A (ja) * | 1986-10-06 | 1988-09-20 | Hoechst Japan Kk | 抗消化性潰瘍剤 |
| IT1197516B (it) * | 1986-12-24 | 1988-11-30 | Abc Ist Biolog Chem Spa | Derivati teofillinmetilanici e teofillinmetilditianici procedimento per la loro preparazione e composizioni farmaceutiche che li comprendono |
| US5096906A (en) * | 1986-12-31 | 1992-03-17 | University Of Virginia Alumni Patents Foundation | Method of inhibiting the activity of leukocyte derived cytokines |
| US4965271A (en) * | 1986-12-31 | 1990-10-23 | Hoechst Roussel Pharmaceuticals, Inc. | Method of inhibiting the activity of leukocyte derived cytokines |
| CA2030112A1 (en) * | 1989-11-24 | 1991-05-25 | Yasuo Ito | Xanthine compound, method for preparing thereof, and a pharmaceutical composition comprising the same |
| DE3942872A1 (de) * | 1989-12-23 | 1991-06-27 | Hoechst Ag | Verfahren zur enantioselektiven darstellung von ((omega)-1)-hydroxyalkylxanthinen |
| US6420374B1 (en) | 1990-11-30 | 2002-07-16 | Fred Hutchinson Cancer Research Center | Use of xanthines as immunosuppressants and to inhibit allograft reactions |
| DE59207086D1 (de) * | 1991-05-23 | 1996-10-17 | Hoechst Ag | Die Verwendung von 1-(5-Oxohexyl)-3-methyl-7-n-propyl-xanthin in der Gefässchirurgie |
| MX9203323A (es) * | 1991-07-11 | 1994-07-29 | Hoechst Ag | El empleo de derivados de xantina para el tratamiento de lesiones secundarias de las celulas nerviosas y trastornos funcionales despues de traumas craneo-cerebrales. |
| JP2549480B2 (ja) * | 1991-12-10 | 1996-10-30 | ヘキストジャパン株式会社 | 排尿障害改善剤 |
| EP0570831A2 (de) * | 1992-05-20 | 1993-11-24 | Hoechst Aktiengesellschaft | Verwendung von Xanthinderivaten zur Behandlung von Nervenschädigungen nach Unterbrechung der Blutzirkulation |
| US6020337A (en) * | 1993-04-05 | 2000-02-01 | Cell Therapeutics, Inc. | Electronegative-substituted long chain xanthine compounds |
| US5670506A (en) * | 1993-04-05 | 1997-09-23 | Cell Therapeutics, Inc. | Halogen, isothiocyanate or azide substituted xanthines |
| AU1868195A (en) * | 1994-01-28 | 1995-08-15 | Cell Therapeutics, Inc. | Cell signaling inhibitors |
| US5762953A (en) * | 1996-08-22 | 1998-06-09 | Theratech, Inc. | Transdermal propentofylline compositions for the treatment of Alzheimers disease |
| DE19707655A1 (de) * | 1997-02-26 | 1998-08-27 | Hoechst Ag | Kombinationspräparat zur Anwendung bei Demenz |
| US20040110776A1 (en) * | 2002-02-22 | 2004-06-10 | Iok-Hou Pang | Use of propentofylline to control intraocular pressure |
| BRPI0908107A2 (pt) | 2008-02-29 | 2019-09-24 | Concert Pharmaceuticals Inc | composto derivado de xantina substituída, composição farmacêutica que compreende esse composto, métodos de tratamento de uma enfermidade ou condição em um paciente com necessidade do mesmo, método de tratamento de enfermidade crônica dos rins, do fígado, relacionada com diabetes e de claudicação intermitente |
| US20110053961A1 (en) | 2009-02-27 | 2011-03-03 | Concert Pharmaceuticals, Inc. | Substituted xanthine derivatives |
| AU2010289551A1 (en) | 2009-09-02 | 2012-03-01 | Concert Pharmaceuticals, Inc. | Substituted xanthine derivatives |
| EP3397640B1 (en) * | 2015-12-29 | 2021-08-04 | INSERM - Institut National de la Santé et de la Recherche Médicale | Xanthine derivative inhibitors of bet proteins |
| CN112724160A (zh) * | 2021-03-19 | 2021-04-30 | 赤峰经方医药技术开发有限责任公司 | 一种己酮可可碱杂质的制备方法 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH325292A (de) * | 1953-10-21 | 1957-10-31 | Geigy Ag J R | Verfahren zur Herstellung von 7-Oxyalkyl-xanthinderivaten |
| FR1211333A (fr) * | 1955-10-19 | 1960-03-15 | Boehringer Sohn Ingelheim | Perfectionnements apportés aux procédés pour fabriquer des oxyalcoylxanthines |
| US3422107A (en) | 1964-09-05 | 1969-01-14 | Albert Ag Chem Werke | Certain oxoalkyldimethylxanthines and a process for the preparation thereof |
| US3737433A (en) | 1964-09-05 | 1973-06-05 | Albert Ag Chem Werke | Certain oxoalkyldimethylxanthines |
| DE1233405B (de) | 1964-09-05 | 1967-02-02 | Albert Ag Chem Werke | Verfahren zur Herstellung von 7-(Oxoalkyl)-1, 3-dimethylxanthinen |
| DE1235320B (de) * | 1964-09-05 | 1967-03-02 | Albert Ag Chem Werke | Verfahren zur Herstellung von 1-(Oxoalkyl)-3, 7-dimethylxanthinen |
| US3864469A (en) * | 1967-12-16 | 1975-02-04 | Hoechst Ag | Xanthines in pharmaceutical preparations and for stabilization of vitamins |
| DE1810705C3 (de) * | 1968-11-25 | 1980-11-27 | Hoechst Ag, 6000 Frankfurt | Stabilisierung von Vitaminen |
| DE1911279A1 (de) * | 1969-03-05 | 1970-11-12 | Eckert Dr Theodor | Verfahren zur Erhoehung der Resorptionsfaehigkeit von Arzneistoffen |
-
1973
- 1973-06-16 DE DE2330742A patent/DE2330742C2/de not_active Expired
-
1974
- 1974-01-01 AR AR254209A patent/AR208179A1/es active
- 1974-06-11 NO NO742121A patent/NO140300C/no unknown
- 1974-06-11 ES ES427171A patent/ES427171A1/es not_active Expired
- 1974-06-12 ZA ZA00743760A patent/ZA743760B/xx unknown
- 1974-06-13 NL NLAANVRAGE7407890,A patent/NL182806C/xx not_active IP Right Cessation
- 1974-06-14 SE SE7407913A patent/SE423631B/xx not_active IP Right Cessation
- 1974-06-14 GB GB2655574A patent/GB1470220A/en not_active Expired
- 1974-06-14 BE BE145417A patent/BE816332A/xx not_active IP Right Cessation
- 1974-06-14 FR FR7420679A patent/FR2233065B1/fr not_active Expired
- 1974-06-14 CH CH123978A patent/CH612969A5/xx not_active IP Right Cessation
- 1974-06-14 DK DK321574A patent/DK145676C/da active
- 1974-06-14 FI FI1819/74A patent/FI58920C/fi active
- 1974-06-14 JP JP49067265A patent/JPS5233120B2/ja not_active Expired
- 1974-06-14 AT AT491874A patent/AT334388B/de not_active IP Right Cessation
- 1974-06-14 IE IE1258/74A patent/IE39898B1/xx unknown
- 1974-06-14 CH CH748211A patent/CH608807A5/xx not_active IP Right Cessation
-
1975
- 1975-08-22 AR AR260112A patent/AR209319A1/es active
- 1975-08-22 AR AR260113A patent/AR209320A1/es active
-
1979
- 1979-04-23 US US06/032,536 patent/US4289776A/en not_active Expired - Lifetime
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