DD297956A5 - Verfahren zur herstellung von cis-dihydronopol - Google Patents
Verfahren zur herstellung von cis-dihydronopol Download PDFInfo
- Publication number
- DD297956A5 DD297956A5 DD90342589A DD34258990A DD297956A5 DD 297956 A5 DD297956 A5 DD 297956A5 DD 90342589 A DD90342589 A DD 90342589A DD 34258990 A DD34258990 A DD 34258990A DD 297956 A5 DD297956 A5 DD 297956A5
- Authority
- DD
- German Democratic Republic
- Prior art keywords
- cis
- catalyst
- dihydronopol
- formula
- platinum
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 239000003054 catalyst Substances 0.000 claims abstract description 43
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims abstract description 24
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 claims abstract description 12
- MUMZUERVLWJKNR-UHFFFAOYSA-N oxoplatinum Chemical compound [Pt]=O MUMZUERVLWJKNR-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910003446 platinum oxide Inorganic materials 0.000 claims abstract description 12
- 150000002148 esters Chemical class 0.000 claims abstract description 11
- 229910052697 platinum Inorganic materials 0.000 claims abstract description 10
- 239000001257 hydrogen Substances 0.000 claims description 23
- 229910052739 hydrogen Inorganic materials 0.000 claims description 23
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 21
- 150000001875 compounds Chemical class 0.000 claims description 13
- -1 hydroxy-substituted phenyl Chemical group 0.000 claims description 6
- 125000000217 alkyl group Chemical group 0.000 claims description 5
- RCRVMCSPZAMFKV-GUBZILKMSA-N 2-[(1s,4s,5s)-6,6-dimethyl-4-bicyclo[3.1.1]heptanyl]ethanol Chemical class C1[C@@]2([H])[C@H](CCO)CC[C@]1([H])C2(C)C RCRVMCSPZAMFKV-GUBZILKMSA-N 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 125000002252 acyl group Chemical group 0.000 claims description 2
- 125000003545 alkoxy group Chemical group 0.000 claims description 2
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 abstract description 25
- ROKSAUSPJGWCSM-UWVGGRQHSA-N (-)-Nopol Chemical compound C1[C@@H]2C(C)(C)[C@H]1CC=C2CCO ROKSAUSPJGWCSM-UWVGGRQHSA-N 0.000 abstract description 5
- 238000009904 heterogeneous catalytic hydrogenation reaction Methods 0.000 abstract description 2
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 36
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 15
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 15
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 14
- 238000005984 hydrogenation reaction Methods 0.000 description 14
- 239000011541 reaction mixture Substances 0.000 description 14
- 239000007858 starting material Substances 0.000 description 11
- 239000000243 solution Substances 0.000 description 10
- RCRVMCSPZAMFKV-UHFFFAOYSA-N 2-(6,6-dimethyl-4-bicyclo[3.1.1]heptanyl)ethanol Chemical compound C1C2C(C)(C)C1CCC2CCO RCRVMCSPZAMFKV-UHFFFAOYSA-N 0.000 description 9
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 9
- 238000009835 boiling Methods 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 9
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 8
- WTARULDDTDQWMU-IUCAKERBSA-N (-)-β-pinene Chemical compound C1[C@@H]2C(C)(C)[C@H]1CCC2=C WTARULDDTDQWMU-IUCAKERBSA-N 0.000 description 7
- 238000004817 gas chromatography Methods 0.000 description 7
- 239000000203 mixture Substances 0.000 description 7
- 229910052757 nitrogen Inorganic materials 0.000 description 7
- 239000002904 solvent Substances 0.000 description 7
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 6
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- 230000035484 reaction time Effects 0.000 description 6
- 150000001733 carboxylic acid esters Chemical class 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- KWYUFKZDYYNOTN-UHFFFAOYSA-M potassium hydroxide Inorganic materials [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- 229910052707 ruthenium Inorganic materials 0.000 description 5
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 4
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 4
- 238000004587 chromatography analysis Methods 0.000 description 4
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 4
- 229930006715 (-)-beta-pinene Natural products 0.000 description 3
- AWNOGHRWORTNEI-RYUDHWBXSA-N 2-[(1s,5r)-6,6-dimethyl-4-bicyclo[3.1.1]hept-3-enyl]ethyl acetate Chemical compound CC(=O)OCCC1=CC[C@@H]2C(C)(C)[C@H]1C2 AWNOGHRWORTNEI-RYUDHWBXSA-N 0.000 description 3
- ORILYTVJVMAKLC-UHFFFAOYSA-N Adamantane Natural products C1C(C2)CC3CC1CC2C3 ORILYTVJVMAKLC-UHFFFAOYSA-N 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 3
- WTARULDDTDQWMU-UHFFFAOYSA-N Pseudopinene Natural products C1C2C(C)(C)C1CCC2=C WTARULDDTDQWMU-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- IKGXLCMLVINENI-QOXGANSBSA-M [Br-].COc1cc(Br)c(C[N+]2(CCOCC[C@@H]3CC[C@H]4C[C@@H]3C4(C)C)CCOCC2)cc1OC Chemical compound [Br-].COc1cc(Br)c(C[N+]2(CCOCC[C@@H]3CC[C@H]4C[C@@H]3C4(C)C)CCOCC2)cc1OC IKGXLCMLVINENI-QOXGANSBSA-M 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 3
- 239000007795 chemical reaction product Substances 0.000 description 3
- 238000004508 fractional distillation Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 125000001424 substituent group Chemical group 0.000 description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 2
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 2
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 2
- 238000003776 cleavage reaction Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000012043 crude product Substances 0.000 description 2
- 238000007257 deesterification reaction Methods 0.000 description 2
- 238000004821 distillation Methods 0.000 description 2
- 239000000706 filtrate Substances 0.000 description 2
- 239000005350 fused silica glass Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 150000007529 inorganic bases Chemical class 0.000 description 2
- 239000012074 organic phase Substances 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 229960002088 pinaverium bromide Drugs 0.000 description 2
- 230000007017 scission Effects 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 229910052938 sodium sulfate Inorganic materials 0.000 description 2
- 235000011152 sodium sulphate Nutrition 0.000 description 2
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000010626 work up procedure Methods 0.000 description 2
- DYLIWHYUXAJDOJ-OWOJBTEDSA-N (e)-4-(6-aminopurin-9-yl)but-2-en-1-ol Chemical compound NC1=NC=NC2=C1N=CN2C\C=C\CO DYLIWHYUXAJDOJ-OWOJBTEDSA-N 0.000 description 1
- IKGXLCMLVINENI-HWSQDURDSA-M 4-[(2-bromo-4,5-dimethoxyphenyl)methyl]-4-[2-[2-[(1s,5s)-6,6-dimethyl-4-bicyclo[3.1.1]heptanyl]ethoxy]ethyl]morpholin-4-ium;bromide Chemical compound [Br-].C1([C@@]2(C[C@](CC1)(C2(C)C)[H])[H])CCOCC[N+]1(CC=2C(=CC(OC)=C(OC)C=2)Br)CCOCC1 IKGXLCMLVINENI-HWSQDURDSA-M 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 1
- 230000005526 G1 to G0 transition Effects 0.000 description 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 239000007868 Raney catalyst Substances 0.000 description 1
- 229910000564 Raney nickel Inorganic materials 0.000 description 1
- 208000000260 Warts Diseases 0.000 description 1
- 229960000583 acetic acid Drugs 0.000 description 1
- 125000000218 acetic acid group Chemical group C(C)(=O)* 0.000 description 1
- WETWJCDKMRHUPV-UHFFFAOYSA-N acetyl chloride Chemical compound CC(Cl)=O WETWJCDKMRHUPV-UHFFFAOYSA-N 0.000 description 1
- 239000012346 acetyl chloride Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 230000010933 acylation Effects 0.000 description 1
- 238000005917 acylation reaction Methods 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 238000006136 alcoholysis reaction Methods 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 150000008044 alkali metal hydroxides Chemical class 0.000 description 1
- 229910001860 alkaline earth metal hydroxide Inorganic materials 0.000 description 1
- 125000005907 alkyl ester group Chemical group 0.000 description 1
- 239000008346 aqueous phase Substances 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 150000001558 benzoic acid derivatives Chemical class 0.000 description 1
- PASDCCFISLVPSO-UHFFFAOYSA-N benzoyl chloride Chemical compound ClC(=O)C1=CC=CC=C1 PASDCCFISLVPSO-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000000812 cholinergic antagonist Substances 0.000 description 1
- 239000012230 colorless oil Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 150000004292 cyclic ethers Chemical class 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000012362 glacial acetic acid Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical group 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 239000005457 ice water Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- IBIKHMZPHNKTHM-RDTXWAMCSA-N merck compound 25 Chemical compound C1C[C@@H](C(O)=O)[C@H](O)CN1C(C1=C(F)C=CC=C11)=NN1C(=O)C1=C(Cl)C=CC=C1C1CC1 IBIKHMZPHNKTHM-RDTXWAMCSA-N 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 150000007530 organic bases Chemical class 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 229920005591 polysilicon Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- RZWZRACFZGVKFM-UHFFFAOYSA-N propanoyl chloride Chemical compound CCC(Cl)=O RZWZRACFZGVKFM-UHFFFAOYSA-N 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 201000010153 skin papilloma Diseases 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 230000002048 spasmolytic effect Effects 0.000 description 1
- LMBFAGIMSUYTBN-MPZNNTNKSA-N teixobactin Chemical compound C([C@H](C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](CO)C(=O)N[C@H](CCC(N)=O)C(=O)N[C@H]([C@@H](C)CC)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](CO)C(=O)N[C@H]1C(N[C@@H](C)C(=O)N[C@@H](C[C@@H]2NC(=N)NC2)C(=O)N[C@H](C(=O)O[C@H]1C)[C@@H](C)CC)=O)NC)C1=CC=CC=C1 LMBFAGIMSUYTBN-MPZNNTNKSA-N 0.000 description 1
- 150000003505 terpenes Chemical class 0.000 description 1
- 235000007586 terpenes Nutrition 0.000 description 1
- 239000012000 urushibara nickel Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C31/00—Saturated compounds having hydroxy or O-metal groups bound to acyclic carbon atoms
- C07C31/13—Monohydroxylic alcohols containing saturated rings
- C07C31/137—Monohydroxylic alcohols containing saturated rings polycyclic with condensed ring systems
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Catalysts (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3922386A DE3922386A1 (de) | 1989-07-07 | 1989-07-07 | Verfahren zur herstellung von cis-dihydronopol |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DD297956A5 true DD297956A5 (de) | 1992-01-30 |
Family
ID=6384503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DD90342589A DD297956A5 (de) | 1989-07-07 | 1990-07-06 | Verfahren zur herstellung von cis-dihydronopol |
Country Status (12)
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108863715B (zh) * | 2018-07-23 | 2021-07-20 | 蚌埠中实化学技术有限公司 | 一种诺卜醇氢化还原制备二氢诺卜醇的方法 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2097031A1 (en) * | 1970-07-29 | 1972-03-03 | Berri Balzac | 2-aminoethoxyethyl-6,6-dimethyl nor pinane derivs - local anaesthetics spasmolytics and anticholinergics |
| JPS6049169B2 (ja) * | 1978-04-28 | 1985-10-31 | 花王株式会社 | ８−エキソ−ヒドロキシメチル−エンド−トリシクロ〔５．２．１．０↑２，↑６〕デカンエステルおよびエ−テル |
-
1989
- 1989-07-07 DE DE3922386A patent/DE3922386A1/de not_active Withdrawn
-
1990
- 1990-06-08 PT PT94318A patent/PT94318B/pt not_active IP Right Cessation
- 1990-06-29 CA CA002020168A patent/CA2020168C/en not_active Expired - Lifetime
- 1990-06-30 AT AT90112541T patent/ATE88456T1/de not_active IP Right Cessation
- 1990-06-30 ES ES90112541T patent/ES2054160T3/es not_active Expired - Lifetime
- 1990-06-30 EP EP90112541A patent/EP0406742B1/de not_active Expired - Lifetime
- 1990-06-30 DK DK90112541.9T patent/DK0406742T3/da active
- 1990-06-30 DE DE9090112541T patent/DE59001237D1/de not_active Expired - Lifetime
- 1990-07-02 HU HU904052A patent/HU206308B/hu unknown
- 1990-07-04 JP JP2175481A patent/JP2807060B2/ja not_active Expired - Lifetime
- 1990-07-06 FI FI903439A patent/FI92689C/fi active IP Right Grant
- 1990-07-06 DD DD90342589A patent/DD297956A5/de unknown
-
1993
- 1993-06-25 GR GR920403225T patent/GR3008294T3/el unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FI903439A0 (fi) | 1990-07-06 |
| EP0406742B1 (de) | 1993-04-21 |
| HU904052D0 (en) | 1990-12-28 |
| EP0406742A1 (de) | 1991-01-09 |
| FI92689B (fi) | 1994-09-15 |
| JP2807060B2 (ja) | 1998-09-30 |
| CA2020168C (en) | 2000-05-02 |
| GR3008294T3 (enrdf_load_stackoverflow) | 1993-09-30 |
| ES2054160T3 (es) | 1994-08-01 |
| DE3922386A1 (de) | 1991-01-17 |
| HUT54340A (en) | 1991-02-28 |
| CA2020168A1 (en) | 1991-01-08 |
| PT94318B (pt) | 1997-02-28 |
| DK0406742T3 (da) | 1993-05-17 |
| ATE88456T1 (de) | 1993-05-15 |
| JPH0344343A (ja) | 1991-02-26 |
| FI92689C (fi) | 1994-12-27 |
| DE59001237D1 (de) | 1993-05-27 |
| PT94318A (pt) | 1991-03-20 |
| HU206308B (en) | 1992-10-28 |
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Owner name: SOLVAY PHARMACEUTICALS GMBH, HANNOVER Effective date: 19970529 |
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| IF04 | In force in the year 2004 |
Expiry date: 20100707 |