DK168867B1 - Fremgangsmåde til fremstilling af 6,6-dibrompenicillansyre-1,1-dioxid - Google Patents
Fremgangsmåde til fremstilling af 6,6-dibrompenicillansyre-1,1-dioxid Download PDFInfo
- Publication number
- DK168867B1 DK168867B1 DK496284A DK496284A DK168867B1 DK 168867 B1 DK168867 B1 DK 168867B1 DK 496284 A DK496284 A DK 496284A DK 496284 A DK496284 A DK 496284A DK 168867 B1 DK168867 B1 DK 168867B1
- Authority
- DK
- Denmark
- Prior art keywords
- acid
- dioxide
- reaction
- mmol
- amount
- Prior art date
Links
- 239000002253 acid Substances 0.000 title claims description 46
- 238000000034 method Methods 0.000 title claims description 26
- 238000002360 preparation method Methods 0.000 title claims description 6
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 93
- 238000006243 chemical reaction Methods 0.000 claims description 54
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims description 33
- 239000002904 solvent Substances 0.000 claims description 18
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 claims description 17
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 claims description 14
- 229910052794 bromium Inorganic materials 0.000 claims description 14
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 13
- SXDBWCPKPHAZSM-UHFFFAOYSA-N bromic acid Chemical compound OBr(=O)=O SXDBWCPKPHAZSM-UHFFFAOYSA-N 0.000 claims description 13
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 claims description 12
- 239000003795 chemical substances by application Substances 0.000 claims description 9
- 239000003960 organic solvent Substances 0.000 claims description 8
- 239000011541 reaction mixture Substances 0.000 claims description 6
- 235000010288 sodium nitrite Nutrition 0.000 claims description 6
- -1 alkyl nitrite Chemical compound 0.000 claims description 5
- 150000007524 organic acids Chemical class 0.000 claims description 5
- OSORMYZMWHVFOZ-UHFFFAOYSA-N phenethyl benzoate Chemical compound C=1C=CC=CC=1C(=O)OCCC1=CC=CC=C1 OSORMYZMWHVFOZ-UHFFFAOYSA-N 0.000 claims description 3
- 229910052783 alkali metal Inorganic materials 0.000 claims description 2
- 125000004432 carbon atom Chemical group C* 0.000 claims description 2
- 150000007522 mineralic acids Chemical class 0.000 claims description 2
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 claims 1
- 150000001340 alkali metals Chemical group 0.000 claims 1
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 18
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 10
- 238000004128 high performance liquid chromatography Methods 0.000 description 10
- NGHVIOIJCVXTGV-ALEPSDHESA-N 6-aminopenicillanic acid Chemical compound [O-]C(=O)[C@H]1C(C)(C)S[C@@H]2[C@H]([NH3+])C(=O)N21 NGHVIOIJCVXTGV-ALEPSDHESA-N 0.000 description 9
- NGHVIOIJCVXTGV-UHFFFAOYSA-N 6beta-amino-penicillanic acid Natural products OC(=O)C1C(C)(C)SC2C(N)C(=O)N21 NGHVIOIJCVXTGV-UHFFFAOYSA-N 0.000 description 9
- 239000000203 mixture Substances 0.000 description 9
- AFVFQIVMOAPDHO-UHFFFAOYSA-N Methanesulfonic acid Chemical compound CS(O)(=O)=O AFVFQIVMOAPDHO-UHFFFAOYSA-N 0.000 description 8
- 239000000047 product Substances 0.000 description 8
- 239000000243 solution Substances 0.000 description 8
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 6
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 6
- CPELXLSAUQHCOX-UHFFFAOYSA-N Hydrogen bromide Chemical compound Br CPELXLSAUQHCOX-UHFFFAOYSA-N 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000005481 NMR spectroscopy Methods 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 238000001704 evaporation Methods 0.000 description 5
- 230000008020 evaporation Effects 0.000 description 5
- FKENQMMABCRJMK-RITPCOANSA-N sulbactam Chemical compound O=S1(=O)C(C)(C)[C@H](C(O)=O)N2C(=O)C[C@H]21 FKENQMMABCRJMK-RITPCOANSA-N 0.000 description 5
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 238000005893 bromination reaction Methods 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 238000000605 extraction Methods 0.000 description 4
- 229940098779 methanesulfonic acid Drugs 0.000 description 4
- 239000012452 mother liquor Substances 0.000 description 4
- 239000007858 starting material Substances 0.000 description 4
- BMYNFMYTOJXKLE-UHFFFAOYSA-N 3-azaniumyl-2-hydroxypropanoate Chemical compound NCC(O)C(O)=O BMYNFMYTOJXKLE-UHFFFAOYSA-N 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 3
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 3
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 150000001298 alcohols Chemical class 0.000 description 3
- 239000012267 brine Substances 0.000 description 3
- 230000031709 bromination Effects 0.000 description 3
- 229910000042 hydrogen bromide Inorganic materials 0.000 description 3
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 3
- 239000011976 maleic acid Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 150000004702 methyl esters Chemical class 0.000 description 3
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 3
- DNIAPMSPPWPWGF-GSVOUGTGSA-N (R)-(-)-Propylene glycol Chemical compound C[C@@H](O)CO DNIAPMSPPWPWGF-GSVOUGTGSA-N 0.000 description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 2
- 108020004256 Beta-lactamase Proteins 0.000 description 2
- YXHKONLOYHBTNS-UHFFFAOYSA-N Diazomethane Chemical compound C=[N+]=[N-] YXHKONLOYHBTNS-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 2
- AMQJEAYHLZJPGS-UHFFFAOYSA-N N-Pentanol Chemical compound CCCCCO AMQJEAYHLZJPGS-UHFFFAOYSA-N 0.000 description 2
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 description 2
- DKGAVHZHDRPRBM-UHFFFAOYSA-N Tert-Butanol Chemical compound CC(C)(C)O DKGAVHZHDRPRBM-UHFFFAOYSA-N 0.000 description 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
- DTQVDTLACAAQTR-UHFFFAOYSA-N Trifluoroacetic acid Chemical compound OC(=O)C(F)(F)F DTQVDTLACAAQTR-UHFFFAOYSA-N 0.000 description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 2
- 102000006635 beta-lactamase Human genes 0.000 description 2
- 239000012043 crude product Substances 0.000 description 2
- HPXRVTGHNJAIIH-UHFFFAOYSA-N cyclohexanol Chemical compound OC1CCCCC1 HPXRVTGHNJAIIH-UHFFFAOYSA-N 0.000 description 2
- JXTHNDFMNIQAHM-UHFFFAOYSA-N dichloroacetic acid Chemical compound OC(=O)C(Cl)Cl JXTHNDFMNIQAHM-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- ZSIAUFGUXNUGDI-UHFFFAOYSA-N hexan-1-ol Chemical compound CCCCCCO ZSIAUFGUXNUGDI-UHFFFAOYSA-N 0.000 description 2
- ZXEKIIBDNHEJCQ-UHFFFAOYSA-N isobutanol Chemical compound CC(C)CO ZXEKIIBDNHEJCQ-UHFFFAOYSA-N 0.000 description 2
- DNIAPMSPPWPWGF-UHFFFAOYSA-N monopropylene glycol Natural products CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 2
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 2
- 238000000655 nuclear magnetic resonance spectrum Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- RBKMMJSQKNKNEV-RITPCOANSA-N penicillanic acid Chemical compound OC(=O)[C@H]1C(C)(C)S[C@@H]2CC(=O)N21 RBKMMJSQKNKNEV-RITPCOANSA-N 0.000 description 2
- 235000013772 propylene glycol Nutrition 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 229940079827 sodium hydrogen sulfite Drugs 0.000 description 2
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 description 2
- HYBDSXBLGCQKRE-UHFFFAOYSA-N 1-(2,6-dichlorophenyl)ethanone Chemical compound CC(=O)C1=C(Cl)C=CC=C1Cl HYBDSXBLGCQKRE-UHFFFAOYSA-N 0.000 description 1
- 229960000583 acetic acid Drugs 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 238000010533 azeotropic distillation Methods 0.000 description 1
- 239000003782 beta lactam antibiotic agent Substances 0.000 description 1
- 239000003781 beta lactamase inhibitor Substances 0.000 description 1
- 229940126813 beta-lactamase inhibitor Drugs 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 125000001246 bromo group Chemical group Br* 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- FOCAUTSVDIKZOP-UHFFFAOYSA-N chloroacetic acid Chemical compound OC(=O)CCl FOCAUTSVDIKZOP-UHFFFAOYSA-N 0.000 description 1
- 229940106681 chloroacetic acid Drugs 0.000 description 1
- 238000003776 cleavage reaction Methods 0.000 description 1
- 238000005695 dehalogenation reaction Methods 0.000 description 1
- 229960005215 dichloroacetic acid Drugs 0.000 description 1
- 239000003480 eluent Substances 0.000 description 1
- OAYLNYINCPYISS-UHFFFAOYSA-N ethyl acetate;hexane Chemical compound CCCCCC.CCOC(C)=O OAYLNYINCPYISS-UHFFFAOYSA-N 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000012362 glacial acetic acid Substances 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- 229940093915 gynecological organic acid Drugs 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000001819 mass spectrum Methods 0.000 description 1
- 230000007193 modulation by symbiont of host erythrocyte aggregation Effects 0.000 description 1
- CSDTZUBPSYWZDX-UHFFFAOYSA-N n-pentyl nitrite Chemical compound CCCCCON=O CSDTZUBPSYWZDX-UHFFFAOYSA-N 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- LYGJENNIWJXYER-UHFFFAOYSA-N nitromethane Chemical compound C[N+]([O-])=O LYGJENNIWJXYER-UHFFFAOYSA-N 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 239000012044 organic layer Substances 0.000 description 1
- 239000008194 pharmaceutical composition Substances 0.000 description 1
- 230000000144 pharmacologic effect Effects 0.000 description 1
- WVDDGKGOMKODPV-ZQBYOMGUSA-N phenyl(114C)methanol Chemical compound O[14CH2]C1=CC=CC=C1 WVDDGKGOMKODPV-ZQBYOMGUSA-N 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
- 230000007017 scission Effects 0.000 description 1
- HRZFUMHJMZEROT-UHFFFAOYSA-L sodium disulfite Chemical compound [Na+].[Na+].[O-]S(=O)S([O-])(=O)=O HRZFUMHJMZEROT-UHFFFAOYSA-L 0.000 description 1
- 235000010262 sodium metabisulphite Nutrition 0.000 description 1
- 239000012265 solid product Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- IIACRCGMVDHOTQ-UHFFFAOYSA-N sulfamic acid Chemical compound NS(O)(=O)=O IIACRCGMVDHOTQ-UHFFFAOYSA-N 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002132 β-lactam antibiotic Substances 0.000 description 1
- 229940124586 β-lactam antibiotics Drugs 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D499/00—Heterocyclic compounds containing 4-thia-1-azabicyclo [3.2.0] heptane ring systems, i.e. compounds containing a ring system of the formula:, e.g. penicillins, penems; Such ring systems being further condensed, e.g. 2,3-condensed with an oxygen-, nitrogen- or sulfur-containing hetero ring
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Catalysts (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP83201496 | 1983-10-18 | ||
| EP83201496A EP0139047A1 (en) | 1983-10-18 | 1983-10-18 | Process for the preparation of 6,6-dibromopenicillanic acid 1,1-dioxide |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DK496284D0 DK496284D0 (da) | 1984-10-17 |
| DK496284A DK496284A (da) | 1985-04-19 |
| DK168867B1 true DK168867B1 (da) | 1994-06-27 |
Family
ID=8191001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK496284A DK168867B1 (da) | 1983-10-18 | 1984-10-17 | Fremgangsmåde til fremstilling af 6,6-dibrompenicillansyre-1,1-dioxid |
Country Status (15)
| Country | Link |
|---|---|
| US (1) | US4576754A (es) |
| EP (2) | EP0139047A1 (es) |
| JP (1) | JPS60120882A (es) |
| KR (1) | KR870001068B1 (es) |
| AU (1) | AU561307B2 (es) |
| CA (1) | CA1233171A (es) |
| DE (1) | DE3470161D1 (es) |
| DK (1) | DK168867B1 (es) |
| ES (1) | ES536877A0 (es) |
| FI (1) | FI79113C (es) |
| GR (1) | GR80672B (es) |
| HU (1) | HU192477B (es) |
| NL (1) | NL179821C (es) |
| NZ (1) | NZ209823A (es) |
| PT (1) | PT79315B (es) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IN149747B (es) * | 1977-06-07 | 1982-04-03 | Pfizer | |
| SE449103B (sv) * | 1979-03-05 | 1987-04-06 | Pfizer | Sett att framstella penicillansyra-1,1-dioxid samt estrar derav |
| US4420426A (en) * | 1979-03-05 | 1983-12-13 | Pfizer Inc. | 6-Alpha-halopenicillanic acid 1,1-dioxides |
| US4397783A (en) * | 1979-03-05 | 1983-08-09 | Pfizer Inc. | Process for converting 6,6-disubstituted penicillanic acid derivatives to the 6-β-congeners |
| US4432970A (en) * | 1979-11-23 | 1984-02-21 | Pfizer Inc. | 6-beta-Halopenicillanic acid 1,1-dioxides as beta-lactamase inhibitors |
| NL7908867A (nl) * | 1979-12-10 | 1981-07-01 | Gist Brocades Nv | Werkwijze voor het bereiden van 6-aminopenicillaanzuur- -1,1-dioxide en zijn zouten. |
| US4360463A (en) * | 1981-09-02 | 1982-11-23 | Pfizer Inc. | Pure 6,6-diiodopenicillanic acid and process for its preparation |
| PT76526B (en) * | 1982-04-19 | 1986-01-21 | Gist Brocades Nv | Preparation of 6-alpha-bromo- and/or 6,6-dibromopenicillanic acid 1,1-dioxides |
-
1983
- 1983-10-18 EP EP83201496A patent/EP0139047A1/en not_active Withdrawn
-
1984
- 1984-10-03 PT PT79315A patent/PT79315B/pt not_active IP Right Cessation
- 1984-10-04 AU AU33828/84A patent/AU561307B2/en not_active Ceased
- 1984-10-09 NZ NZ209823A patent/NZ209823A/en unknown
- 1984-10-10 US US06/659,089 patent/US4576754A/en not_active Expired - Lifetime
- 1984-10-12 KR KR1019840006323A patent/KR870001068B1/ko not_active IP Right Cessation
- 1984-10-15 FI FI844050A patent/FI79113C/fi not_active IP Right Cessation
- 1984-10-16 GR GR80672A patent/GR80672B/el unknown
- 1984-10-16 NL NLAANVRAGE8403145,A patent/NL179821C/xx not_active IP Right Cessation
- 1984-10-17 HU HU843885A patent/HU192477B/hu not_active IP Right Cessation
- 1984-10-17 DK DK496284A patent/DK168867B1/da not_active IP Right Cessation
- 1984-10-17 CA CA000465598A patent/CA1233171A/en not_active Expired
- 1984-10-18 DE DE8484201515T patent/DE3470161D1/de not_active Expired
- 1984-10-18 EP EP84201515A patent/EP0138283B1/en not_active Expired
- 1984-10-18 JP JP59219333A patent/JPS60120882A/ja active Granted
- 1984-10-18 ES ES536877A patent/ES536877A0/es active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60120882A (ja) | 1985-06-28 |
| FI79113C (fi) | 1989-11-10 |
| ES8507553A1 (es) | 1985-09-01 |
| HUT35683A (en) | 1985-07-29 |
| CA1233171A (en) | 1988-02-23 |
| EP0138283B1 (en) | 1988-03-30 |
| FI79113B (fi) | 1989-07-31 |
| KR870001068B1 (ko) | 1987-05-27 |
| AU3382884A (en) | 1985-04-26 |
| PT79315A (en) | 1984-11-01 |
| FI844050A0 (fi) | 1984-10-15 |
| US4576754A (en) | 1986-03-18 |
| EP0138283A3 (en) | 1985-06-19 |
| EP0138283A2 (en) | 1985-04-24 |
| EP0139047A1 (en) | 1985-05-02 |
| HU192477B (en) | 1987-06-29 |
| DE3470161D1 (en) | 1988-05-05 |
| ES536877A0 (es) | 1985-09-01 |
| NL179821C (nl) | 1986-11-17 |
| NL179821B (nl) | 1986-06-16 |
| PT79315B (en) | 1986-09-08 |
| FI844050L (fi) | 1985-04-19 |
| KR850002985A (ko) | 1985-05-28 |
| AU561307B2 (en) | 1987-05-07 |
| JPH0142954B2 (es) | 1989-09-18 |
| NZ209823A (en) | 1988-03-30 |
| GR80672B (en) | 1985-02-18 |
| DK496284A (da) | 1985-04-19 |
| NL8403145A (nl) | 1985-05-17 |
| DK496284D0 (da) | 1984-10-17 |
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| B1 | Patent granted (law 1993) | ||
| PBP | Patent lapsed |