ZW3884A1 - Carbapenem process - Google Patents
Carbapenem processInfo
- Publication number
- ZW3884A1 ZW3884A1 ZW38/84A ZW3884A ZW3884A1 ZW 3884 A1 ZW3884 A1 ZW 3884A1 ZW 38/84 A ZW38/84 A ZW 38/84A ZW 3884 A ZW3884 A ZW 3884A ZW 3884 A1 ZW3884 A1 ZW 3884A1
- Authority
- ZW
- Zimbabwe
- Prior art keywords
- carbapenem
- carbapenem process
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D477/00—Heterocyclic compounds containing 1-azabicyclo [3.2.0] heptane ring systems, i.e. compounds containing a ring system of the formula:, e.g. carbapenicillins, thienamycins; Such ring systems being further condensed, e.g. 2,3-condensed with an oxygen-, nitrogen- or sulphur-containing hetero ring
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/06—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom containing only hydrogen and carbon atoms in addition to the ring nitrogen atom
- C07D213/16—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom containing only hydrogen and carbon atoms in addition to the ring nitrogen atom containing only one pyridine ring
- C07D213/20—Quaternary compounds thereof
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P31/00—Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
- A61P31/04—Antibacterial agents
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/24—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with substituted hydrocarbon radicals attached to ring carbon atoms
- C07D213/28—Radicals substituted by singly-bound oxygen or sulphur atoms
- C07D213/30—Oxygen atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/60—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen 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
- C07D213/62—Oxygen or sulfur atoms
- C07D213/63—One oxygen atom
- C07D213/65—One oxygen atom attached in position 3 or 5
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/60—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen 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
- C07D213/62—Oxygen or sulfur atoms
- C07D213/70—Sulfur atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/60—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen 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
- C07D213/72—Nitrogen atoms
- C07D213/73—Unsubstituted amino or imino radicals
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D233/00—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings
- C07D233/54—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings having two double bonds between ring members or between ring members and non-ring members
- C07D233/66—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings having two double bonds between ring members or between ring members and non-ring members 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
- C07D233/84—Sulfur atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D295/00—Heterocyclic 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
- C07D295/04—Heterocyclic 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
- C07D295/08—Heterocyclic 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 bound oxygen or sulfur atoms
- C07D295/084—Heterocyclic 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 bound oxygen or sulfur atoms with the ring nitrogen atoms and the oxygen or sulfur atoms attached to the same carbon chain, which is not interrupted by carbocyclic rings
- C07D295/088—Heterocyclic 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 bound oxygen or sulfur atoms with the ring nitrogen atoms and the oxygen or sulfur atoms attached to the same carbon chain, which is not interrupted by carbocyclic rings to an acyclic saturated chain
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D477/00—Heterocyclic compounds containing 1-azabicyclo [3.2.0] heptane ring systems, i.e. compounds containing a ring system of the formula:, e.g. carbapenicillins, thienamycins; Such ring systems being further condensed, e.g. 2,3-condensed with an oxygen-, nitrogen- or sulphur-containing hetero ring
- C07D477/02—Preparation
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/55—Design of synthesis routes, e.g. reducing the use of auxiliary or protecting groups
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Molecular Biology (AREA)
- Communicable Diseases (AREA)
- Oncology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Medicinal Chemistry (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Pharmacology & Pharmacy (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Nitrogen Condensed Heterocyclic Rings (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Pyridine Compounds (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US47137883A | 1983-03-08 | 1983-03-08 | |
| US49969183A | 1983-06-07 | 1983-06-07 | |
| US55729583A | 1983-12-01 | 1983-12-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ZW3884A1 true ZW3884A1 (en) | 1984-10-10 |
Family
ID=27413179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ZW38/84A ZW3884A1 (en) | 1983-03-08 | 1984-03-05 | Carbapenem process |
Country Status (31)
| Country | Link |
|---|---|
| JP (1) | JPH05255250A (en) |
| KR (1) | KR900002247B1 (en) |
| AR (1) | AR241016A1 (en) |
| AT (1) | AT387968B (en) |
| AU (2) | AU572124B2 (en) |
| CA (1) | CA1284324C (en) |
| CH (1) | CH658248A5 (en) |
| CY (1) | CY1546A (en) |
| DD (1) | DD228258A5 (en) |
| DE (1) | DE3408347A1 (en) |
| DK (1) | DK140584A (en) |
| ES (2) | ES8505205A1 (en) |
| FI (1) | FI840863A (en) |
| FR (1) | FR2542316B1 (en) |
| GB (1) | GB2136802B (en) |
| GR (1) | GR81871B (en) |
| HK (1) | HK82990A (en) |
| HU (1) | HU193895B (en) |
| IE (1) | IE57098B1 (en) |
| IL (1) | IL71149A (en) |
| IT (1) | IT1178465B (en) |
| LU (1) | LU85241A1 (en) |
| NL (1) | NL8400702A (en) |
| NO (1) | NO166038C (en) |
| NZ (1) | NZ207346A (en) |
| OA (1) | OA07674A (en) |
| PT (1) | PT78211B (en) |
| SE (2) | SE8401278L (en) |
| SG (1) | SG35490G (en) |
| YU (2) | YU46147B (en) |
| ZW (1) | ZW3884A1 (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4683301A (en) * | 1982-04-08 | 1987-07-28 | Bristol-Myers Company | Carbapenem antibiotics |
| US4552696A (en) * | 1982-04-09 | 1985-11-12 | Bristol-Myers Company | Carbapenem antibiotics |
| CA1285940C (en) * | 1984-07-02 | 1991-07-09 | Merck & Co., Inc. | Carbapenems having a 2-quaternary heteroarylalkylthio substituent |
| IE851586L (en) * | 1984-07-02 | 1986-01-02 | Interchem Internat S A | I methylcarbapenems having a 2-quaternary¹heteroarylalkylthio substituent |
| US4665169A (en) * | 1985-09-11 | 1987-05-12 | Bristol-Myers Company | Carbapenem antibiotics |
| US4880922A (en) * | 1985-11-22 | 1989-11-14 | Bristol-Myers Company | Carbapenems with quaternized heterothioalkylthio substitution at position 2 |
| NZ219892A (en) * | 1986-04-15 | 1991-02-26 | Merck & Co Inc | N-amino quaternised heteroarylium carbapenem derivatives and pharmaceutical compositions thereof |
| CA2036941A1 (en) * | 1990-02-23 | 1991-08-24 | Isao Kawamoto | Carbapenem derivatives having antibiotic activity, their preparation and their use |
| US5712267A (en) * | 1991-06-04 | 1998-01-27 | Sankyo Company,. Limited | Carbapenem derivatives, their preparation and their use as antibiotics |
| CA2526209A1 (en) | 2003-06-12 | 2004-12-23 | Btg International Limited | Cyclic hydroxylamine as psychoactive compounds |
| FR2921258A1 (en) * | 2007-09-24 | 2009-03-27 | Oreal | TINCTORIAL COMPOSITION COMPRISING AT LEAST ONE COLOR DISULFIDE / THIOL PRECURSOR, COLORING PROCESS FROM THE COMPOSITION |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55147284A (en) * | 1979-04-17 | 1980-11-17 | Sanraku Inc | Novel beta-lactam derivative and its preparation |
| IE52147B1 (en) * | 1980-03-27 | 1987-07-08 | Merck & Co Inc | 4-(3-carboxy-2-oxopropyl)-azetidin-2-ones and process for their preparation |
| EP0038869A1 (en) * | 1980-04-30 | 1981-11-04 | Merck & Co. Inc. | Process for the preparation of 1-carbapenems, and intermediates for their preparation |
| EP0060612A1 (en) * | 1981-02-04 | 1982-09-22 | Beecham Group Plc | Process for the preparation of azabicyclo(3.2.0)-hept-2-ene derivatives |
| US4552873A (en) * | 1981-08-19 | 1985-11-12 | Sankyo Company Limited | Carbapenem compounds, and compositions containing them |
| EP0074599A1 (en) * | 1981-09-09 | 1983-03-23 | Takeda Chemical Industries, Ltd. | 5,6-cis-Carbapenem derivatives, their production and use |
| US4552696A (en) * | 1982-04-09 | 1985-11-12 | Bristol-Myers Company | Carbapenem antibiotics |
| US4536335A (en) * | 1982-06-18 | 1985-08-20 | Bristol-Myers Company | Carbapenem antibiotics |
-
1984
- 1984-02-29 DK DK140584A patent/DK140584A/en not_active Application Discontinuation
- 1984-02-29 AR AR295877A patent/AR241016A1/en active
- 1984-03-01 NZ NZ207346A patent/NZ207346A/en unknown
- 1984-03-05 IL IL71149A patent/IL71149A/en unknown
- 1984-03-05 NL NL8400702A patent/NL8400702A/en not_active Application Discontinuation
- 1984-03-05 FI FI840863A patent/FI840863A/en not_active Application Discontinuation
- 1984-03-05 ZW ZW38/84A patent/ZW3884A1/en unknown
- 1984-03-06 CH CH1103/84A patent/CH658248A5/en not_active IP Right Cessation
- 1984-03-06 GR GR73999A patent/GR81871B/el unknown
- 1984-03-06 CA CA000448904A patent/CA1284324C/en not_active Expired - Fee Related
- 1984-03-07 IT IT19945/84A patent/IT1178465B/en active
- 1984-03-07 OA OA58247A patent/OA07674A/en unknown
- 1984-03-07 DE DE19843408347 patent/DE3408347A1/en not_active Withdrawn
- 1984-03-07 SE SE8401278A patent/SE8401278L/en not_active Application Discontinuation
- 1984-03-07 LU LU85241A patent/LU85241A1/en unknown
- 1984-03-07 PT PT78211A patent/PT78211B/en unknown
- 1984-03-07 ES ES530337A patent/ES8505205A1/en not_active Expired
- 1984-03-07 AT AT0076984A patent/AT387968B/en not_active IP Right Cessation
- 1984-03-07 IE IE549/84A patent/IE57098B1/en not_active IP Right Cessation
- 1984-03-07 AU AU25360/84A patent/AU572124B2/en not_active Ceased
- 1984-03-07 NO NO840865A patent/NO166038C/en unknown
- 1984-03-07 HU HU84911A patent/HU193895B/en not_active IP Right Cessation
- 1984-03-07 DD DD84260663A patent/DD228258A5/en not_active IP Right Cessation
- 1984-03-07 FR FR8403553A patent/FR2542316B1/en not_active Expired
- 1984-03-07 GB GB08405984A patent/GB2136802B/en not_active Expired
- 1984-03-08 YU YU42084A patent/YU46147B/en unknown
- 1984-03-08 KR KR1019840001243A patent/KR900002247B1/en not_active IP Right Cessation
- 1984-11-02 ES ES537349A patent/ES8507145A1/en not_active Expired
-
1986
- 1986-03-28 YU YU49486A patent/YU46305B/en unknown
-
1987
- 1987-07-20 AU AU75924/87A patent/AU605491B2/en not_active Ceased
-
1989
- 1989-04-03 SE SE8901162A patent/SE8901162L/en not_active Application Discontinuation
-
1990
- 1990-05-19 SG SG35490A patent/SG35490G/en unknown
- 1990-10-11 HK HK829/90A patent/HK82990A/en unknown
-
1991
- 1991-03-22 CY CY1546A patent/CY1546A/en unknown
- 1991-09-27 JP JP3274949A patent/JPH05255250A/en active Pending
Also Published As
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB8331793D0 (en) | Process | |
| YU139984A (en) | Process for making glucoamylasic encyme | |
| YU156384A (en) | Process for making 1-heteroaryl-4- | |
| GB2136802B (en) | Carbapenem process | |
| GB8429408D0 (en) | Process | |
| YU82284A (en) | Process for making substituted sulphonyl-carbamides | |
| AU567786B2 (en) | Calalytic process | |
| ZA849682B (en) | Microbiological process | |
| GB8308823D0 (en) | Silylation process | |
| GB8334172D0 (en) | Continuous sorption process | |
| DE3461788D1 (en) | Process for making nitrodiarylamines | |
| ZA841643B (en) | Carbapenem process | |
| ZW15184A1 (en) | Carbapenem process | |
| GB8320222D0 (en) | Process ii | |
| YU99784A (en) | Process for making 1-phenoxy-3-hydroxy-indolylalkyl-amino-3-propanol | |
| GB8427183D0 (en) | Microbiological process | |
| PT77944A (en) | Process | |
| YU133284A (en) | Process for making azolyle-propan-nitryl | |
| GB8314115D0 (en) | Process | |
| GB8314483D0 (en) | Process | |
| GB8332521D0 (en) | Ologimerisation process | |
| GB8321339D0 (en) | Process | |
| GB8314482D0 (en) | Process | |
| GB8328414D0 (en) | Process | |
| GB8302886D0 (en) | Process |