NZ198295A - Preparation of quinoline carboxylic acid derivatives - Google Patents
Preparation of quinoline carboxylic acid derivativesInfo
- Publication number
- NZ198295A NZ198295A NZ198295A NZ19829581A NZ198295A NZ 198295 A NZ198295 A NZ 198295A NZ 198295 A NZ198295 A NZ 198295A NZ 19829581 A NZ19829581 A NZ 19829581A NZ 198295 A NZ198295 A NZ 198295A
- Authority
- NZ
- New Zealand
- Prior art keywords
- oxo
- carboxylic acid
- piperazinyl
- fluoro
- dihydroquinoline
- Prior art date
Links
- 238000002360 preparation method Methods 0.000 title claims description 13
- LOAUVZALPPNFOQ-UHFFFAOYSA-N quinaldic acid Chemical class C1=CC=CC2=NC(C(=O)O)=CC=C21 LOAUVZALPPNFOQ-UHFFFAOYSA-N 0.000 title description 5
- 239000000203 mixture Substances 0.000 claims description 22
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 21
- GLUUGHFHXGJENI-UHFFFAOYSA-N Piperazine Chemical compound C1CNCCN1 GLUUGHFHXGJENI-UHFFFAOYSA-N 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 16
- 239000013078 crystal Substances 0.000 claims description 15
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 14
- 239000011541 reaction mixture Substances 0.000 claims description 14
- DTYLXDLAOLOTKT-UHFFFAOYSA-N 1,4-dihydroquinoline-3-carboxylic acid Chemical compound C1=CC=C2CC(C(=O)O)=CNC2=C1 DTYLXDLAOLOTKT-UHFFFAOYSA-N 0.000 claims description 13
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 13
- 150000001875 compounds Chemical class 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 125000004494 ethyl ester group Chemical group 0.000 claims description 8
- -1 4-substituted-l-piperazinyl Chemical group 0.000 claims description 7
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 125000000217 alkyl group Chemical group 0.000 claims description 5
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 239000007858 starting material Substances 0.000 claims description 4
- 239000000706 filtrate Substances 0.000 claims description 3
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 3
- 150000004885 piperazines Chemical class 0.000 claims description 3
- 125000000896 monocarboxylic acid group Chemical group 0.000 claims description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims 3
- 125000004432 carbon atom Chemical group C* 0.000 claims 2
- 238000001816 cooling Methods 0.000 claims 2
- VSXMSYVKRKWKDG-UHFFFAOYSA-N 3-ethyl-1,2-oxazol-5-amine Chemical compound CCC=1C=C(N)ON=1 VSXMSYVKRKWKDG-UHFFFAOYSA-N 0.000 claims 1
- JSGVZVOGOQILFM-UHFFFAOYSA-N 3-methoxy-1-butanol Chemical compound COC(C)CCO JSGVZVOGOQILFM-UHFFFAOYSA-N 0.000 claims 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims 1
- 241001125671 Eretmochelys imbricata Species 0.000 claims 1
- 230000003301 hydrolyzing effect Effects 0.000 claims 1
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 28
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 21
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 14
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 12
- 239000002253 acid Substances 0.000 description 10
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 8
- 239000004599 antimicrobial Substances 0.000 description 7
- 150000002148 esters Chemical class 0.000 description 7
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 7
- 239000000243 solution Substances 0.000 description 7
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 4
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 4
- 238000006460 hydrolysis reaction Methods 0.000 description 4
- PVOAHINGSUIXLS-UHFFFAOYSA-N 1-Methylpiperazine Chemical compound CN1CCNCC1 PVOAHINGSUIXLS-UHFFFAOYSA-N 0.000 description 3
- BSKHPKMHTQYZBB-UHFFFAOYSA-N 2-methylpyridine Chemical compound CC1=CC=CC=N1 BSKHPKMHTQYZBB-UHFFFAOYSA-N 0.000 description 3
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 229960000583 acetic acid Drugs 0.000 description 3
- 239000003513 alkali Substances 0.000 description 3
- 230000000844 anti-bacterial effect Effects 0.000 description 3
- 239000006227 byproduct Substances 0.000 description 3
- 150000007530 organic bases Chemical class 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- MHWLWQUZZRMNGJ-UHFFFAOYSA-N nalidixic acid Chemical compound C1=C(C)N=C2N(CC)C=C(C(O)=O)C(=O)C2=C1 MHWLWQUZZRMNGJ-UHFFFAOYSA-N 0.000 description 2
- 229960000210 nalidixic acid Drugs 0.000 description 2
- 239000012454 non-polar solvent Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000012264 purified product Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 229940086542 triethylamine Drugs 0.000 description 2
- 229920002554 vinyl polymer Polymers 0.000 description 2
- GQHTUMJGOHRCHB-UHFFFAOYSA-N 2,3,4,6,7,8,9,10-octahydropyrimido[1,2-a]azepine Chemical compound C1CCCCN2CCCN=C21 GQHTUMJGOHRCHB-UHFFFAOYSA-N 0.000 description 1
- 101000608750 Arachis hypogaea Alpha-methyl-mannoside-specific lectin Proteins 0.000 description 1
- 244000063299 Bacillus subtilis Species 0.000 description 1
- 235000014469 Bacillus subtilis Nutrition 0.000 description 1
- 241000588724 Escherichia coli Species 0.000 description 1
- 241000588747 Klebsiella pneumoniae Species 0.000 description 1
- 241000588767 Proteus vulgaris Species 0.000 description 1
- 241000589517 Pseudomonas aeruginosa Species 0.000 description 1
- 241001354013 Salmonella enterica subsp. enterica serovar Enteritidis Species 0.000 description 1
- 241000607760 Shigella sonnei Species 0.000 description 1
- 241000191967 Staphylococcus aureus Species 0.000 description 1
- 241000193998 Streptococcus pneumoniae Species 0.000 description 1
- 241000193996 Streptococcus pyogenes Species 0.000 description 1
- 101000771730 Tropidolaemus wagleri Waglerin-3 Proteins 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 238000002814 agar dilution Methods 0.000 description 1
- 230000000845 anti-microbial effect Effects 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 150000001733 carboxylic acid esters Chemical class 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 239000007810 chemical reaction solvent Substances 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 125000000816 ethylene group Chemical group [H]C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012362 glacial acetic acid Substances 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000004811 liquid chromatography Methods 0.000 description 1
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 1
- 235000019341 magnesium sulphate Nutrition 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 1
- 150000004702 methyl esters Chemical class 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 230000003389 potentiating effect Effects 0.000 description 1
- 229940007042 proteus vulgaris Drugs 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000013014 purified material Substances 0.000 description 1
- 229940115939 shigella sonnei Drugs 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D215/00—Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D215/00—Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems
- C07D215/02—Heterocyclic 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
- C07D215/16—Heterocyclic 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
- C07D215/48—Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen
- C07D215/54—Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen attached in position 3
- C07D215/56—Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen attached in position 3 with oxygen atoms in position 4
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Quinoline Compounds (AREA)
- Plural Heterocyclic Compounds (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55123024A JPS5762259A (en) | 1980-09-05 | 1980-09-05 | Preparation of substituted quinolinecarboxylic acid derivative |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NZ198295A true NZ198295A (en) | 1984-02-03 |
Family
ID=14850324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NZ198295A NZ198295A (en) | 1980-09-05 | 1981-09-07 | Preparation of quinoline carboxylic acid derivatives |
Country Status (29)
| Country | Link |
|---|---|
| US (1) | US4472579A (en, 2012) |
| JP (1) | JPS5762259A (en, 2012) |
| KR (1) | KR870001944B1 (en, 2012) |
| AR (1) | AR226917A1 (en, 2012) |
| AT (1) | AT380009B (en, 2012) |
| AU (1) | AU540205B2 (en, 2012) |
| BE (1) | BE890223A (en, 2012) |
| CA (1) | CA1214466A (en, 2012) |
| CH (1) | CH646697A5 (en, 2012) |
| DE (1) | DE3135125A1 (en, 2012) |
| DK (1) | DK154763C (en, 2012) |
| ES (2) | ES505207A0 (en, 2012) |
| FI (1) | FI77854C (en, 2012) |
| FR (1) | FR2489821B1 (en, 2012) |
| GB (1) | GB2085875B (en, 2012) |
| GR (1) | GR74304B (en, 2012) |
| HU (1) | HU187356B (en, 2012) |
| IE (1) | IE51540B1 (en, 2012) |
| IN (1) | IN155106B (en, 2012) |
| IT (1) | IT1168168B (en, 2012) |
| LU (1) | LU83609A1 (en, 2012) |
| MX (1) | MX7101E (en, 2012) |
| NL (1) | NL193375C (en, 2012) |
| NO (1) | NO157699C (en, 2012) |
| NZ (1) | NZ198295A (en, 2012) |
| PH (1) | PH17837A (en, 2012) |
| PT (1) | PT73571B (en, 2012) |
| SE (1) | SE442402B (en, 2012) |
| ZA (1) | ZA815207B (en, 2012) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3142854A1 (de) * | 1981-10-29 | 1983-05-11 | Bayer Ag, 5090 Leverkusen | 1-cyclopropyl-6-fluor-1,4-dihydro-4-oxo-7-piperazino-chinolin-3-carbonsaeuren, verfahren zu ihrer herstellung sowie diese enthaltende antibakterielle mittel |
| US4670444B1 (en) * | 1980-09-03 | 1999-02-09 | Bayer Ag | and-naphthyridine-3-carboxylic acids and antibacte7-amino-1-cyclopropyl-4-oxo-1,4-dihydro-quinoline-rial agents containing these compounds |
| JPS59122470A (ja) * | 1982-12-27 | 1984-07-14 | Dai Ichi Seiyaku Co Ltd | キノリン−３−カルボン酸誘導体の製造法 |
| DE3306771A1 (de) * | 1983-02-25 | 1984-08-30 | Bayer Ag, 5090 Leverkusen | Chinoloncarbonsaeuren, verfahren zu ihrer herstellung sowie diese enthaltende antibakterielle mittel |
| DE3318145A1 (de) * | 1983-05-18 | 1984-11-22 | Bayer Ag, 5090 Leverkusen | 7-amino-1-cyclopropyl-6,8-difluor-1,4-dihydro-4-oxo-3-chinolincarbonsaeuren, verfahren zu ihrer herstellung sowie diese enthaltende antibakterielle mittel |
| AU553415B2 (en) * | 1983-09-19 | 1986-07-17 | Abbott Japan Co., Ltd. | 6-fluoro-1-4-dihydro-4-oxo-7-substituted piperazinyl- quinoline-3-carboxylic acids |
| DE3504643A1 (de) * | 1985-02-12 | 1986-08-14 | Bayer Ag, 5090 Leverkusen | 1-cyclopropyl-1,4-dihydro-4-oxo-7-(4-(2-oxo-1,3-dioxol-4-yl-methyl)-1-piperazinyl)-3-chinolin carbonsaeuren, verfahren zu ihrer herstellung sowie diese enthaltende antibakterielle mittel |
| HUT40429A (en) * | 1985-04-29 | 1986-12-28 | Chinoin Gyogyszer Es Vegyeszet | Process for production of salts of derivatives of kynolin carbonic acid |
| DE3525108A1 (de) * | 1985-06-07 | 1986-12-11 | Bayer Ag, 5090 Leverkusen | Antibakteriell wirksame chinoloncarbonsaeureester |
| DE3525335A1 (de) * | 1985-07-16 | 1987-01-22 | Bayer Ag | Embonate von chinoloncarbonsaeuren und ihren derivaten |
| DE3542002A1 (de) * | 1985-11-28 | 1987-06-04 | Bayer Ag | 1-cyclopropyl-6-fluor-1,4-dihydro-4-oxo-7- (1-piperazinyl)-3-chinolincarbonsaeuren, verfahren zu ihrer herstellung sowie diese enthaltende antibakterielle mittel |
| HU196218B (en) | 1985-12-09 | 1988-10-28 | Chinoin Gyogyszer Es Vegyeszet | Process for preparing quinoline carboxylic acid boric acid anhydrides |
| CA1306750C (en) | 1985-12-09 | 1992-08-25 | Istvan Hermecz | Process for the preparation of quinoline carboxylic acide |
| SI8712447A8 (en) * | 1987-12-31 | 1995-12-31 | Krka Tovarna Zdravil | Process for preparing 1-substituted 6-fluoro-4-oxo-7-(1-piperazinyl) -1,4-dihydroquinoline-3-carboxylic acid and new intermediate used in this process |
| SI9200377A (en) | 1992-12-11 | 1994-06-30 | Krka | Process for the preparation of 1-substituted 6-fluoro-4-oxo-7-(1-piperazinyl)-1,4-dihydroquinoline-3-carboxilic acid, novel intermediate used in this process and process for its preparation |
| US6584615B1 (en) * | 1998-11-06 | 2003-07-01 | Mission Hockey Company | Asymmetrical hockey glove system with articulated locking thumb |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2504875A (en) * | 1945-06-04 | 1950-04-18 | Us Sec War | Method for producing 4-hydroxyquinolines |
| US4017622A (en) * | 1972-12-18 | 1977-04-12 | Dainippon Pharmaceutical Co., Ltd. | Piperazine derivatives |
| FI311974A7 (en, 2012) * | 1973-10-26 | 1975-04-27 | Dainippon Pharmaceutical Co | |
| JPS5732059B2 (en, 2012) * | 1974-02-09 | 1982-07-08 | ||
| JPS53141286A (en) * | 1977-05-16 | 1978-12-08 | Kyorin Seiyaku Kk | Novel substituted quinolinecarboxylic acid |
| JPS5466686A (en) * | 1977-09-20 | 1979-05-29 | Dainippon Pharmaceut Co Ltd | Quinoline-3-carboxylic acid derivative, its preparation, and pharmaceutical composition containig the same |
| CA1175836A (en) * | 1977-09-20 | 1984-10-09 | Marcel Pesson | Production of 1,4-dihydroquinoline-3-carboxylic acid derivatives |
| JPS54141286A (en) * | 1978-04-14 | 1979-11-02 | Matsuo Kogyo | Spool detachable system in spinning reel for fishing |
| JPS54138582A (en) * | 1978-04-19 | 1979-10-27 | Kyorin Seiyaku Kk | Substituted quinolinecarboxylic acid |
| JPS5540656A (en) * | 1978-09-19 | 1980-03-22 | Kyorin Pharmaceut Co Ltd | Substituted quinoline-carboxylic acid derivative |
| JPS5845426B2 (ja) * | 1978-09-29 | 1983-10-08 | 杏林製薬株式会社 | 置換キノリンカルボン酸誘導体 |
-
1980
- 1980-09-05 JP JP55123024A patent/JPS5762259A/ja active Granted
-
1981
- 1981-07-22 GR GR65585A patent/GR74304B/el unknown
- 1981-07-29 ZA ZA815207A patent/ZA815207B/xx unknown
- 1981-07-29 CH CH490981A patent/CH646697A5/de not_active IP Right Cessation
- 1981-07-30 IN IN855/CAL/81A patent/IN155106B/en unknown
- 1981-08-04 NL NL8103679A patent/NL193375C/nl not_active IP Right Cessation
- 1981-08-07 NO NO812686A patent/NO157699C/no unknown
- 1981-08-17 AT AT0358881A patent/AT380009B/de not_active IP Right Cessation
- 1981-08-17 FI FI812538A patent/FI77854C/fi not_active IP Right Cessation
- 1981-08-25 AU AU74611/81A patent/AU540205B2/en not_active Expired
- 1981-08-26 PT PT73571A patent/PT73571B/pt unknown
- 1981-08-27 DK DK380681A patent/DK154763C/da not_active IP Right Cessation
- 1981-08-28 SE SE8105102A patent/SE442402B/sv not_active IP Right Cessation
- 1981-08-31 US US06/298,333 patent/US4472579A/en not_active Expired - Lifetime
- 1981-09-01 GB GB8126513A patent/GB2085875B/en not_active Expired
- 1981-09-02 MX MX819646A patent/MX7101E/es unknown
- 1981-09-02 IE IE2028/81A patent/IE51540B1/en not_active IP Right Cessation
- 1981-09-02 AR AR286620A patent/AR226917A1/es active
- 1981-09-03 HU HU812549A patent/HU187356B/hu unknown
- 1981-09-04 IT IT23799/81A patent/IT1168168B/it active Protection Beyond IP Right Term
- 1981-09-04 CA CA000385201A patent/CA1214466A/en not_active Expired
- 1981-09-04 ES ES505207A patent/ES505207A0/es active Granted
- 1981-09-04 DE DE19813135125 patent/DE3135125A1/de active Granted
- 1981-09-04 FR FR8116886A patent/FR2489821B1/fr not_active Expired
- 1981-09-04 BE BE2/59340A patent/BE890223A/fr not_active IP Right Cessation
- 1981-09-05 KR KR1019810003314A patent/KR870001944B1/ko not_active Expired
- 1981-09-07 PH PH26158A patent/PH17837A/en unknown
- 1981-09-07 NZ NZ198295A patent/NZ198295A/en unknown
- 1981-09-07 LU LU83609A patent/LU83609A1/fr unknown
-
1982
- 1982-08-03 ES ES514699A patent/ES8305752A1/es not_active Expired
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