ES420325A1 - Un procedimiento para preparar una prostaglandina. - Google Patents
Un procedimiento para preparar una prostaglandina.Info
- Publication number
- ES420325A1 ES420325A1 ES420325A ES420325A ES420325A1 ES 420325 A1 ES420325 A1 ES 420325A1 ES 420325 A ES420325 A ES 420325A ES 420325 A ES420325 A ES 420325A ES 420325 A1 ES420325 A1 ES 420325A1
- Authority
- ES
- Spain
- Prior art keywords
- carbon atoms
- phenyl
- see formula
- ligation
- substituent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 125000004432 carbon atom Chemical group C* 0.000 abstract 7
- -1 3,4-methylenedioxyphenyl Chemical group 0.000 abstract 5
- 150000001875 compounds Chemical class 0.000 abstract 5
- 125000000217 alkyl group Chemical group 0.000 abstract 4
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 abstract 4
- 125000001424 substituent group Chemical group 0.000 abstract 4
- 125000001589 carboacyl group Chemical group 0.000 abstract 3
- 125000003545 alkoxy group Chemical group 0.000 abstract 2
- 125000004391 aryl sulfonyl group Chemical group 0.000 abstract 2
- 125000003236 benzoyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C(*)=O 0.000 abstract 2
- 125000002485 formyl group Chemical group [H]C(*)=O 0.000 abstract 2
- 229910052736 halogen Inorganic materials 0.000 abstract 2
- 125000001475 halogen functional group Chemical group 0.000 abstract 2
- 150000002367 halogens Chemical class 0.000 abstract 2
- 229910052739 hydrogen Inorganic materials 0.000 abstract 2
- 239000001257 hydrogen Substances 0.000 abstract 2
- 125000004435 hydrogen atom Chemical group [H]* 0.000 abstract 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 abstract 2
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 abstract 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 abstract 2
- 125000000896 monocarboxylic acid group Chemical group 0.000 abstract 2
- 150000003180 prostaglandins Chemical class 0.000 abstract 2
- 125000005809 3,4,5-trimethoxyphenyl group Chemical group [H]C1=C(OC([H])([H])[H])C(OC([H])([H])[H])=C(OC([H])([H])[H])C([H])=C1* 0.000 abstract 1
- 125000003762 3,4-dimethoxyphenyl group Chemical group [H]C1=C([H])C(OC([H])([H])[H])=C(OC([H])([H])[H])C([H])=C1* 0.000 abstract 1
- 229930194542 Keto Natural products 0.000 abstract 1
- 125000004390 alkyl sulfonyl group Chemical group 0.000 abstract 1
- 239000011260 aqueous acid Substances 0.000 abstract 1
- 125000003710 aryl alkyl group Chemical group 0.000 abstract 1
- 125000003118 aryl group Chemical group 0.000 abstract 1
- 239000006184 cosolvent Substances 0.000 abstract 1
- 125000000753 cycloalkyl group Chemical group 0.000 abstract 1
- 150000002170 ethers Chemical class 0.000 abstract 1
- 125000000468 ketone group Chemical group 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 abstract 1
- 230000003381 solubilizing effect Effects 0.000 abstract 1
- 125000003831 tetrazolyl group Chemical group 0.000 abstract 1
- 125000002023 trifluoromethyl group Chemical group FC(F)(F)* 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D257/00—Heterocyclic compounds containing rings having four nitrogen atoms as the only ring hetero atoms
- C07D257/02—Heterocyclic compounds containing rings having four nitrogen atoms as the only ring hetero atoms not condensed with other rings
- C07D257/04—Five-membered rings
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P43/00—Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C405/00—Compounds containing a five-membered ring having two side-chains in ortho position to each other, and having oxygen atoms directly attached to the ring in ortho position to one of the side-chains, one side-chain containing, not directly attached to the ring, a carbon atom having three bonds to hetero atoms with at the most one bond to halogen, and the other side-chain having oxygen atoms attached in gamma-position to the ring, e.g. prostaglandins ; Analogues or derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C405/00—Compounds containing a five-membered ring having two side-chains in ortho position to each other, and having oxygen atoms directly attached to the ring in ortho position to one of the side-chains, one side-chain containing, not directly attached to the ring, a carbon atom having three bonds to hetero atoms with at the most one bond to halogen, and the other side-chain having oxygen atoms attached in gamma-position to the ring, e.g. prostaglandins ; Analogues or derivatives thereof
- C07C405/0008—Analogues having the carboxyl group in the side-chains replaced by other functional groups
- C07C405/0041—Analogues having the carboxyl group in the side-chains replaced by other functional groups containing nitrogen
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
- C07D307/77—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom ortho- or peri-condensed with carbocyclic rings or ring systems
- C07D307/93—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom ortho- or peri-condensed with carbocyclic rings or ring systems condensed with a ring other than six-membered
- C07D307/935—Not further condensed cyclopenta [b] furans or hydrogenated cyclopenta [b] furans
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D309/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings
- C07D309/02—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings having no double bonds between ring members or between ring members and non-ring members
- C07D309/08—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings having no 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
- C07D309/10—Oxygen atoms
- C07D309/12—Oxygen atoms only hydrogen atoms and one oxygen atom directly attached to ring carbon atoms, e.g. tetrahydropyranyl ethers
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D405/00—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom
- C07D405/02—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings
- C07D405/12—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings linked by a chain containing hetero atoms as chain links
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
- C07F9/02—Phosphorus compounds
- C07F9/28—Phosphorus compounds with one or more P—C bonds
- C07F9/38—Phosphonic acids [RP(=O)(OH)2]; Thiophosphonic acids ; [RP(=X1)(X2H)2(X1, X2 are each independently O, S or Se)]
- C07F9/40—Esters thereof
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
- C07F9/02—Phosphorus compounds
- C07F9/28—Phosphorus compounds with one or more P—C bonds
- C07F9/38—Phosphonic acids [RP(=O)(OH)2]; Thiophosphonic acids ; [RP(=X1)(X2H)2(X1, X2 are each independently O, S or Se)]
- C07F9/40—Esters thereof
- C07F9/4003—Esters thereof the acid moiety containing a substituent or a structure which is considered as characteristic
- C07F9/4006—Esters of acyclic acids which can have further substituents on alkyl
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
- C07F9/02—Phosphorus compounds
- C07F9/28—Phosphorus compounds with one or more P—C bonds
- C07F9/54—Quaternary phosphonium compounds
- C07F9/5407—Acyclic saturated phosphonium compounds
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
- C07F9/02—Phosphorus compounds
- C07F9/547—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom
- C07F9/6524—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom having four or more nitrogen atoms as the only ring hetero atoms
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- Molecular Biology (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Pharmacology & Pharmacy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Bioinformatics & Cheminformatics (AREA)
- General Chemical & Material Sciences (AREA)
- Medicinal Chemistry (AREA)
- Animal Behavior & Ethology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
- Furan Compounds (AREA)
- Pyrane Compounds (AREA)
- Plural Heterocyclic Compounds (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US30481372A | 1972-11-08 | 1972-11-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES420325A1 true ES420325A1 (es) | 1976-04-16 |
Family
ID=23178133
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES420325A Expired ES420325A1 (es) | 1972-11-08 | 1973-11-07 | Un procedimiento para preparar una prostaglandina. |
| ES433047A Expired ES433047A1 (es) | 1972-11-08 | 1974-12-18 | Un procedimiento para preparar productos intermedios de prostaglandinas. |
| ES433046A Expired ES433046A1 (es) | 1972-11-08 | 1974-12-18 | Un procedimiento para preparar productos intermedios de prostaglandinas. |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES433047A Expired ES433047A1 (es) | 1972-11-08 | 1974-12-18 | Un procedimiento para preparar productos intermedios de prostaglandinas. |
| ES433046A Expired ES433046A1 (es) | 1972-11-08 | 1974-12-18 | Un procedimiento para preparar productos intermedios de prostaglandinas. |
Country Status (29)
| Country | Link |
|---|---|
| JP (3) | JPS5416491B2 (el) |
| AR (3) | AR200585A1 (el) |
| AT (3) | AT367034B (el) |
| AU (1) | AU470375B2 (el) |
| BE (1) | BE806995A (el) |
| CA (3) | CA1085831A (el) |
| CH (1) | CH597176A5 (el) |
| CS (3) | CS182793B2 (el) |
| DD (4) | DD118856A5 (el) |
| DE (1) | DE2355540C2 (el) |
| DK (1) | DK144247C (el) |
| ES (3) | ES420325A1 (el) |
| FI (1) | FI60389C (el) |
| FR (3) | FR2205335B1 (el) |
| GB (3) | GB1456514A (el) |
| HK (3) | HK27979A (el) |
| HU (3) | HU171819B (el) |
| IE (1) | IE39537B1 (el) |
| IL (1) | IL43589A (el) |
| IN (1) | IN139384B (el) |
| KE (3) | KE2932A (el) |
| MY (3) | MY7900243A (el) |
| NL (1) | NL164273C (el) |
| NO (3) | NO147836C (el) |
| PH (3) | PH13272A (el) |
| SE (4) | SE448992B (el) |
| SU (4) | SU584766A3 (el) |
| YU (3) | YU39715B (el) |
| ZA (1) | ZA738554B (el) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3929862A (en) * | 1974-01-08 | 1975-12-30 | Upjohn Co | Substituted tolylesters of PGF{HD 2{B {60 |
| US3986764A (en) * | 1975-03-31 | 1976-10-19 | Gte Automatic Electric Laboratories Incorporated | Panel for supporting a pair of elongated mating connectors and selectively locking them together |
| GB1506816A (en) * | 1975-03-31 | 1978-04-12 | Upjohn Co | Prostaglandins |
| ES449162A1 (es) * | 1975-06-23 | 1977-12-16 | Syntex Inc | Un procedimiento para la preparacion de un compuesto racemi-co u 8r-antimerico. |
| GB1516414A (en) * | 1975-08-22 | 1978-07-05 | Ici Ltd | Prostane derivatives |
| SE7809008L (sv) * | 1977-12-12 | 1979-06-13 | Upjohn Co | Anvendning av amider av prostaglandintyp for att styra eller reglera reproduktionscykeln hos individer tillhorande deggdjursarter |
| DK523378A (da) * | 1978-01-16 | 1979-07-17 | Pfizer | Fremgangsmaade til fremstilling af n-(tetrazol-5-yl) prostaglandin-carboxamider eller salte deraf |
| WO1999012898A1 (en) * | 1997-09-09 | 1999-03-18 | The Procter & Gamble Company | Aromatic c16-c20-substituted tetrahydro prostaglandins useful as fp agonists |
| EP1159266B1 (en) | 1999-03-05 | 2004-11-03 | Duke University | C-16 unsaturated fp-selective prostaglandins analogs |
| US6894175B1 (en) | 1999-08-04 | 2005-05-17 | The Procter & Gamble Company | 2-Decarboxy-2-phosphinico prostaglandin derivatives and methods for their preparation and use |
| US20020172693A1 (en) | 2000-03-31 | 2002-11-21 | Delong Michell Anthony | Compositions and methods for treating hair loss using non-naturally occurring prostaglandins |
| US20020037914A1 (en) | 2000-03-31 | 2002-03-28 | Delong Mitchell Anthony | Compositions and methods for treating hair loss using C16-C20 aromatic tetrahydro prostaglandins |
| US20020013294A1 (en) | 2000-03-31 | 2002-01-31 | Delong Mitchell Anthony | Cosmetic and pharmaceutical compositions and methods using 2-decarboxy-2-phosphinico derivatives |
| JP2002329615A (ja) * | 2001-05-02 | 2002-11-15 | Ohira Denshi Kk | トロイダルコイル |
| US6476064B1 (en) * | 2001-06-13 | 2002-11-05 | Allergan, Inc. | Cyclopentane heptan(ene) acyl sulfonamide, 2-alkyl or 2-arylalkyl, or 2-heteroarylalkenyl derivatives as therapeutic agents |
| WO2006047466A2 (en) | 2004-10-21 | 2006-05-04 | Duke University | Ophthamological drugs |
| US8722739B2 (en) | 2008-10-29 | 2014-05-13 | Novaer Holdings, Inc. | Amino acid salts of prostaglandins |
| US8623918B2 (en) | 2008-10-29 | 2014-01-07 | Novaer Holdings, Inc. | Amino acid salts of prostaglandins |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1324737A (en) * | 1970-11-02 | 1973-07-25 | Upjohn Co | Prostaglandins and the preparation thereof |
| IE37602B1 (en) * | 1971-05-11 | 1977-08-31 | Ici Ltd | Cyclopentane derivatives |
-
1972
- 1972-11-07 DD DD182498*A patent/DD118856A5/xx unknown
-
1973
- 1973-10-29 SE SE7314686A patent/SE448992B/xx unknown
- 1973-11-07 CA CA185,274A patent/CA1085831A/en not_active Expired
- 1973-11-07 CH CH1563973A patent/CH597176A5/xx not_active IP Right Cessation
- 1973-11-07 DD DD182499*A patent/DD119411A5/xx unknown
- 1973-11-07 JP JP12527273A patent/JPS5416491B2/ja not_active Expired
- 1973-11-07 NL NL7315263.A patent/NL164273C/xx not_active IP Right Cessation
- 1973-11-07 GB GB2285876A patent/GB1456514A/en not_active Expired
- 1973-11-07 DD DD182497*A patent/DD117233A5/xx unknown
- 1973-11-07 DE DE2355540A patent/DE2355540C2/de not_active Expired
- 1973-11-07 BE BE1005485A patent/BE806995A/xx not_active IP Right Cessation
- 1973-11-07 AR AR250885A patent/AR200585A1/es active
- 1973-11-07 YU YU2880/73A patent/YU39715B/xx unknown
- 1973-11-07 AT AT0936973A patent/AT367034B/de not_active IP Right Cessation
- 1973-11-07 IL IL43589A patent/IL43589A/en unknown
- 1973-11-07 ZA ZA738554A patent/ZA738554B/xx unknown
- 1973-11-07 DD DD174504A patent/DD109212A5/xx unknown
- 1973-11-07 IN IN2448/CAL/73A patent/IN139384B/en unknown
- 1973-11-07 FI FI3443/73A patent/FI60389C/fi active
- 1973-11-07 GB GB5175873A patent/GB1456512A/en not_active Expired
- 1973-11-07 PH PH15191A patent/PH13272A/en unknown
- 1973-11-07 IE IE2002/73A patent/IE39537B1/xx unknown
- 1973-11-07 ES ES420325A patent/ES420325A1/es not_active Expired
- 1973-11-07 DK DK601073A patent/DK144247C/da not_active IP Right Cessation
- 1973-11-07 GB GB2395076A patent/GB1456513A/en not_active Expired
- 1973-11-07 AU AU62247/73A patent/AU470375B2/en not_active Expired
- 1973-11-07 NO NO4288/73A patent/NO147836C/no unknown
- 1973-11-07 FR FR7339544A patent/FR2205335B1/fr not_active Expired
- 1973-11-08 CS CS7500006065A patent/CS182793B2/cs unknown
- 1973-11-08 HU HU73PI00000452A patent/HU171819B/hu unknown
- 1973-11-08 CS CS7300007669A patent/CS182791B2/cs unknown
- 1973-11-08 HU HU72PI00000399A patent/HU172703B/hu unknown
- 1973-11-08 HU HU73PI451A patent/HU173507B/hu unknown
- 1973-11-08 CS CS7500006066A patent/CS182794B2/cs unknown
- 1973-11-11 SU SU7301971722A patent/SU584766A3/ru active
-
1974
- 1974-06-06 AR AR254090A patent/AR202931A1/es active
- 1974-06-06 AR AR254091A patent/AR199966A1/es active
- 1974-09-26 NO NO743493A patent/NO148998C/no unknown
- 1974-12-18 ES ES433047A patent/ES433047A1/es not_active Expired
- 1974-12-18 ES ES433046A patent/ES433046A1/es not_active Expired
-
1975
- 1975-02-18 NO NO750535A patent/NO149139C/no unknown
- 1975-02-18 SU SU752106791A patent/SU667141A3/ru active
- 1975-02-19 SU SU752106125A patent/SU893130A3/ru active
- 1975-07-24 PH PH17410A patent/PH13110A/en unknown
- 1975-07-24 PH PH17409A patent/PH13325A/en unknown
- 1975-08-22 FR FR7526059A patent/FR2279729A1/fr active Granted
- 1975-08-22 FR FR7526060A patent/FR2283146A1/fr active Granted
-
1976
- 1976-07-23 AT AT544676A patent/AT353285B/de active
- 1976-07-23 AT AT544576A patent/AT360672B/de not_active IP Right Cessation
- 1976-10-15 JP JP51123737A patent/JPS5253841A/ja active Pending
- 1976-10-15 JP JP51123738A patent/JPS5257147A/ja active Pending
-
1977
- 1977-01-24 SE SE7700718A patent/SE431756B/xx not_active IP Right Cessation
- 1977-01-24 SE SE7700717A patent/SE436278B/xx not_active IP Right Cessation
- 1977-01-24 SE SE7700716A patent/SE445111B/xx not_active IP Right Cessation
- 1977-07-11 CA CA341,897A patent/CA1088930A/en not_active Expired
- 1977-07-11 CA CA341,898A patent/CA1088931A/en not_active Expired
-
1978
- 1978-07-27 SU SU782629453A patent/SU745362A3/ru active
-
1979
- 1979-03-15 KE KE2932A patent/KE2932A/xx unknown
- 1979-03-15 KE KE2930A patent/KE2930A/xx unknown
- 1979-03-15 KE KE2931A patent/KE2931A/xx unknown
- 1979-05-03 HK HK279/79A patent/HK27979A/xx unknown
- 1979-05-03 HK HK281/79A patent/HK28179A/xx unknown
- 1979-05-03 HK HK280/79A patent/HK28079A/xx unknown
- 1979-12-30 MY MY243/79A patent/MY7900243A/xx unknown
- 1979-12-30 MY MY246/79A patent/MY7900246A/xx unknown
- 1979-12-30 MY MY245/79A patent/MY7900245A/xx unknown
-
1980
- 1980-10-23 YU YU2706/80A patent/YU37316B/xx unknown
- 1980-10-23 YU YU2707/80A patent/YU36975B/xx unknown
Also Published As
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