FI59592C - Foerfarande foer framstaellning av 3,4-dihydro-2h-1,2-bensotiazin-1,1-dioxid - Google Patents
Foerfarande foer framstaellning av 3,4-dihydro-2h-1,2-bensotiazin-1,1-dioxid Download PDFInfo
- Publication number
- FI59592C FI59592C FI752623A FI752623A FI59592C FI 59592 C FI59592 C FI 59592C FI 752623 A FI752623 A FI 752623A FI 752623 A FI752623 A FI 752623A FI 59592 C FI59592 C FI 59592C
- Authority
- FI
- Finland
- Prior art keywords
- dihydro
- dioxide
- benzothiazine
- formula
- reaction
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 17
- -1 2-thiazolyl Chemical group 0.000 claims description 22
- 238000006243 chemical reaction Methods 0.000 claims description 17
- 150000001412 amines Chemical class 0.000 claims description 7
- 238000002360 preparation method Methods 0.000 claims description 7
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 4
- 125000004182 2-chlorophenyl group Chemical group [H]C1=C([H])C(Cl)=C(*)C([H])=C1[H] 0.000 claims description 3
- 239000003960 organic solvent Substances 0.000 claims description 3
- 125000004105 2-pyridyl group Chemical group N1=C([*])C([H])=C([H])C([H])=C1[H] 0.000 claims description 2
- VSCYCJOVRGSJBT-UHFFFAOYSA-N 3,4-dihydro-2h-1$l^{6},2-benzothiazine 1,1-dioxide Chemical compound C1=CC=C2S(=O)(=O)NCCC2=C1 VSCYCJOVRGSJBT-UHFFFAOYSA-N 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 description 19
- 238000010992 reflux Methods 0.000 description 13
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 12
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 12
- 239000000203 mixture Substances 0.000 description 12
- 239000002244 precipitate Substances 0.000 description 10
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 9
- 239000008096 xylene Substances 0.000 description 9
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 8
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 8
- 239000000047 product Substances 0.000 description 8
- 239000011541 reaction mixture Substances 0.000 description 8
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 description 8
- RAIPHJJURHTUIC-UHFFFAOYSA-N 1,3-thiazol-2-amine Chemical compound NC1=NC=CS1 RAIPHJJURHTUIC-UHFFFAOYSA-N 0.000 description 7
- 239000012948 isocyanate Substances 0.000 description 7
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 6
- 125000000217 alkyl group Chemical group 0.000 description 6
- 125000004432 carbon atom Chemical group C* 0.000 description 6
- 239000007787 solid Substances 0.000 description 6
- 239000002904 solvent Substances 0.000 description 6
- 239000007858 starting material Substances 0.000 description 6
- 238000009835 boiling Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 125000000623 heterocyclic group Chemical group 0.000 description 4
- 150000002513 isocyanates Chemical class 0.000 description 4
- 238000004809 thin layer chromatography Methods 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 238000005915 ammonolysis reaction Methods 0.000 description 3
- 238000004821 distillation Methods 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 3
- 239000012299 nitrogen atmosphere Substances 0.000 description 3
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 3
- 238000001953 recrystallisation Methods 0.000 description 3
- NOHQUGRVHSJYMR-UHFFFAOYSA-N 1-chloro-2-isocyanatobenzene Chemical compound ClC1=CC=CC=C1N=C=O NOHQUGRVHSJYMR-UHFFFAOYSA-N 0.000 description 2
- ICSNLGPSRYBMBD-UHFFFAOYSA-N 2-aminopyridine Chemical compound NC1=CC=CC=N1 ICSNLGPSRYBMBD-UHFFFAOYSA-N 0.000 description 2
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 2
- SOWBFZRMHSNYGE-UHFFFAOYSA-N Monoamide-Oxalic acid Natural products NC(=O)C(O)=O SOWBFZRMHSNYGE-UHFFFAOYSA-N 0.000 description 2
- MZRVEZGGRBJDDB-UHFFFAOYSA-N N-Butyllithium Chemical compound [Li]CCCC MZRVEZGGRBJDDB-UHFFFAOYSA-N 0.000 description 2
- KEAYESYHFKHZAL-UHFFFAOYSA-N Sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 description 2
- WQDUMFSSJAZKTM-UHFFFAOYSA-N Sodium methoxide Chemical compound [Na+].[O-]C WQDUMFSSJAZKTM-UHFFFAOYSA-N 0.000 description 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 238000006136 alcoholysis reaction Methods 0.000 description 2
- 125000003545 alkoxy group Chemical group 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 2
- 229910052794 bromium Inorganic materials 0.000 description 2
- 150000003857 carboxamides Chemical class 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000012442 inert solvent Substances 0.000 description 2
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 125000003884 phenylalkyl group Chemical group 0.000 description 2
- 229910000104 sodium hydride Inorganic materials 0.000 description 2
- 239000012312 sodium hydride Substances 0.000 description 2
- 125000001424 substituent group Chemical group 0.000 description 2
- 125000002023 trifluoromethyl group Chemical group FC(F)(F)* 0.000 description 2
- PEQMJVGRHNZPAM-UHFFFAOYSA-N 1,4-dichloro-2-isocyanatobenzene Chemical compound ClC1=CC=C(Cl)C(N=C=O)=C1 PEQMJVGRHNZPAM-UHFFFAOYSA-N 0.000 description 1
- WOHLSTOWRAOMSG-UHFFFAOYSA-N 2,3-dihydro-1,3-benzothiazole Chemical class C1=CC=C2SCNC2=C1 WOHLSTOWRAOMSG-UHFFFAOYSA-N 0.000 description 1
- JNNXIBWXEGAIMV-UHFFFAOYSA-N 2-(3-oxo-1,2-benzothiazol-2-yl)acetic acid Chemical compound C1=CC=C2C(=O)N(CC(=O)O)SC2=C1 JNNXIBWXEGAIMV-UHFFFAOYSA-N 0.000 description 1
- VXGHWBHTDJQBCP-UHFFFAOYSA-N 2-[2-(methylsulfamoyl)phenyl]acetic acid Chemical compound CNS(=O)(=O)C1=CC=CC=C1CC(O)=O VXGHWBHTDJQBCP-UHFFFAOYSA-N 0.000 description 1
- YCMLQMDWSXFTIF-UHFFFAOYSA-N 2-methylbenzenesulfonimidic acid Chemical compound CC1=CC=CC=C1S(N)(=O)=O YCMLQMDWSXFTIF-UHFFFAOYSA-N 0.000 description 1
- UJVBZCCNLAAMOV-UHFFFAOYSA-N 2h-1,2-benzothiazine Chemical compound C1=CC=C2C=CNSC2=C1 UJVBZCCNLAAMOV-UHFFFAOYSA-N 0.000 description 1
- FKOSZDBJQBJDIV-UHFFFAOYSA-N 2h-1,2-benzothiazine-3-carboxamide Chemical compound C1=CC=C2SNC(C(=O)N)=CC2=C1 FKOSZDBJQBJDIV-UHFFFAOYSA-N 0.000 description 1
- KXDHJXZQYSOELW-UHFFFAOYSA-M Carbamate Chemical compound NC([O-])=O KXDHJXZQYSOELW-UHFFFAOYSA-M 0.000 description 1
- HJTVVTIKMPZOEJ-UHFFFAOYSA-N N,1,1-trioxo-2H-1lambda6,2-benzothiazine-3-carboxamide Chemical compound O=NC(=O)C=1NS(C2=C(C=1)C=CC=C2)(=O)=O HJTVVTIKMPZOEJ-UHFFFAOYSA-N 0.000 description 1
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 125000003342 alkenyl group Chemical group 0.000 description 1
- 150000001350 alkyl halides Chemical class 0.000 description 1
- 150000001413 amino acids Chemical class 0.000 description 1
- 229940121363 anti-inflammatory agent Drugs 0.000 description 1
- 239000002260 anti-inflammatory agent Substances 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 125000001164 benzothiazolyl group Chemical group S1C(=NC2=C1C=CC=C2)* 0.000 description 1
- 125000004541 benzoxazolyl group Chemical group O1C(=NC2=C1C=CC=C2)* 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000003246 corticosteroid Substances 0.000 description 1
- 229960001334 corticosteroids Drugs 0.000 description 1
- 238000010828 elution Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 150000002391 heterocyclic compounds Chemical class 0.000 description 1
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 description 1
- 239000005457 ice water Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000006317 isomerization reaction Methods 0.000 description 1
- 125000001786 isothiazolyl group Chemical group 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- BAJXNEYFJDMIFP-UHFFFAOYSA-N n,2-dimethylbenzenesulfonamide Chemical compound CNS(=O)(=O)C1=CC=CC=C1C BAJXNEYFJDMIFP-UHFFFAOYSA-N 0.000 description 1
- 125000001624 naphthyl group Chemical group 0.000 description 1
- 239000002798 polar solvent Substances 0.000 description 1
- 125000003373 pyrazinyl group Chemical group 0.000 description 1
- HAOKKJHTFUZWIM-UHFFFAOYSA-N pyridin-1-ium-2-amine;chloride Chemical compound Cl.NC1=CC=CC=N1 HAOKKJHTFUZWIM-UHFFFAOYSA-N 0.000 description 1
- 125000004076 pyridyl group Chemical group 0.000 description 1
- 125000000714 pyrimidinyl group Chemical group 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- CVHZOJJKTDOEJC-UHFFFAOYSA-N saccharin Chemical class C1=CC=C2C(=O)NS(=O)(=O)C2=C1 CVHZOJJKTDOEJC-UHFFFAOYSA-N 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 238000010583 slow cooling Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000000967 suction filtration Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 125000001113 thiadiazolyl group Chemical group 0.000 description 1
- 125000000335 thiazolyl group Chemical group 0.000 description 1
- 238000007056 transamidation reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 150000003738 xylenes Chemical class 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D265/00—Heterocyclic compounds containing six-membered rings having one nitrogen atom and one oxygen atom as the only ring hetero atoms
- C07D265/02—1,2-Oxazines; Hydrogenated 1,2-oxazines
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D279/00—Heterocyclic compounds containing six-membered rings having one nitrogen atom and one sulfur atom as the only ring hetero atoms
- C07D279/02—1,2-Thiazines; Hydrogenated 1,2-thiazines
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Nitrogen- Or Sulfur-Containing Heterocyclic Ring Compounds With Rings Of Six Or More Members (AREA)
- Plural Heterocyclic Compounds (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US51089274 | 1974-10-01 | ||
| US510892A US3891637A (en) | 1974-10-01 | 1974-10-01 | Process for the production of carboxamides of oxo-1,2-benzothiazine-1,1-dioxides |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| FI752623A FI752623A (es) | 1976-04-02 |
| FI59592B FI59592B (fi) | 1981-05-29 |
| FI59592C true FI59592C (fi) | 1981-09-10 |
Family
ID=24032618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI752623A FI59592C (fi) | 1974-10-01 | 1975-09-19 | Foerfarande foer framstaellning av 3,4-dihydro-2h-1,2-bensotiazin-1,1-dioxid |
Country Status (27)
| Country | Link |
|---|---|
| US (1) | US3891637A (es) |
| JP (1) | JPS5159877A (es) |
| AR (1) | AR212584A1 (es) |
| AT (1) | AT346356B (es) |
| BE (1) | BE833655A (es) |
| BG (1) | BG35596A3 (es) |
| CA (1) | CA1038387A (es) |
| CH (1) | CH605933A5 (es) |
| CS (1) | CS183818B2 (es) |
| DD (1) | DD121642A5 (es) |
| DE (1) | DE2541346A1 (es) |
| DK (1) | DK150511C (es) |
| ES (1) | ES441260A1 (es) |
| FI (1) | FI59592C (es) |
| FR (1) | FR2299335A1 (es) |
| GB (1) | GB1476608A (es) |
| HU (1) | HU170883B (es) |
| IE (1) | IE41689B1 (es) |
| IN (1) | IN141820B (es) |
| LU (1) | LU73467A1 (es) |
| NL (1) | NL7511179A (es) |
| NO (1) | NO143627C (es) |
| PL (1) | PL107232B1 (es) |
| RO (1) | RO67632A (es) |
| SE (1) | SE420726B (es) |
| SU (1) | SU676164A3 (es) |
| YU (1) | YU40125B (es) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4474955A (en) * | 1981-06-17 | 1984-10-02 | Vincenzo Iannella | Process for preparing 4-hydroxy-2-methyl-2H-1,2-benzothiazine-3-[N-(2-pyridinyl)carboxamide]-1,1-dioxide, and its phosphoric ester |
| GT198276334A (es) * | 1981-08-03 | 1984-01-10 | Procedimiento e inter-medios para la produccion de carboxamidas de benzotiazina. | |
| IN159273B (es) * | 1981-10-05 | 1987-04-25 | Pfizer | |
| SU1306476A3 (ru) * | 1982-06-17 | 1987-04-23 | Пфайзер,Инк (Фирма) | Способ получени 2-метил-3- @ -(2-пиридил)-карбамоил-3,4-дигидро-2 @ -1,2-бензтиазин-1,1-диоксида |
| ATE31309T1 (de) * | 1982-07-07 | 1987-12-15 | Siegfried Ag | Verfahren zur herstellung von 4-hydroxy-2-methyln-2-pyridyl-2h-1,2-benzothiazin-3-carboxamid 1,1- dioxid. |
| US4483982A (en) * | 1982-09-02 | 1984-11-20 | Pfizer Inc. | Processes for preparing piroxicam and intermediates leading thereto |
| DE3237473A1 (de) * | 1982-10-09 | 1984-04-12 | Dr. Karl Thomae Gmbh, 7950 Biberach | Neue 4-hydroxy-2h-1,2-benzothiazin-3-carboxamid-1,1-dioxide, verfahren zu ihrer herstellung, ihre verwendung und diese verbindungen enthaltende arzneimittel |
| US4761424A (en) * | 1985-10-01 | 1988-08-02 | Warner-Lambert Company | Enolamides, pharmaceutical compositions and methods for treating inflammation |
| JP2007538024A (ja) * | 2004-05-19 | 2007-12-27 | ベーリンガー インゲルハイム インターナショナル ゲゼルシャフト ミット ベシュレンクテル ハフツング | アミロイドベータペプチドのレベル変化に関連する疾患及び状態の治療方法及び新規エノールカルボキサミド化合物 |
| CN103232410B (zh) * | 2013-04-26 | 2014-12-10 | 苏州大学 | 一种制备2-氨基苯并噻嗪的方法 |
| RU2535997C1 (ru) * | 2013-12-18 | 2014-12-20 | Открытое Акционерное Общество "Международная Научно-Технологическая Корпорация" | 4-ГИДРОКСИ-N-(2-КАРБОКСИФЕНИЛ)1-МЕТИЛ-2,2-ДИОКСО-1H-2λ6,1-БЕНЗОТИАЗИН-3-КАРБОКСАМИД, ПРОЯВЛЯЮЩИЙ ДИУРЕТИЧЕСКУЮ АКТИВНОСТЬ |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3591584A (en) * | 1968-08-27 | 1971-07-06 | Pfizer | Benzothiazine dioxides |
| US3646020A (en) * | 1970-07-16 | 1972-02-29 | Warner Lambert Pharmaceutical | 4-acyloxy-3-phenylcarbamyl-2h-1 2-benzothiazine 1 1-dioxides |
| US3853862A (en) * | 1973-04-23 | 1974-12-10 | Pfizer | Production of 4-hydroxy-1,2-benzothiazine-3-carboxamides |
-
1974
- 1974-10-01 US US510892A patent/US3891637A/en not_active Expired - Lifetime
-
1975
- 1975-08-25 SE SE7509448A patent/SE420726B/xx not_active IP Right Cessation
- 1975-09-01 IN IN1684/CAL/75A patent/IN141820B/en unknown
- 1975-09-02 CA CA234,551A patent/CA1038387A/en not_active Expired
- 1975-09-11 IE IE1982/75A patent/IE41689B1/en unknown
- 1975-09-17 DE DE19752541346 patent/DE2541346A1/de active Pending
- 1975-09-17 YU YU2341/75A patent/YU40125B/xx unknown
- 1975-09-19 FI FI752623A patent/FI59592C/fi not_active IP Right Cessation
- 1975-09-19 BE BE1006897A patent/BE833655A/xx not_active IP Right Cessation
- 1975-09-22 FR FR7528986A patent/FR2299335A1/fr active Granted
- 1975-09-22 CS CS7500006385A patent/CS183818B2/cs unknown
- 1975-09-23 GB GB3903475A patent/GB1476608A/en not_active Expired
- 1975-09-23 NL NL7511179A patent/NL7511179A/xx unknown
- 1975-09-23 NO NO753241A patent/NO143627C/no unknown
- 1975-09-24 RO RO7583450A patent/RO67632A/ro unknown
- 1975-09-24 AT AT731275A patent/AT346356B/de not_active IP Right Cessation
- 1975-09-25 CH CH1245375A patent/CH605933A5/xx not_active IP Right Cessation
- 1975-09-25 DD DD188567A patent/DD121642A5/xx unknown
- 1975-09-25 DK DK430075A patent/DK150511C/da not_active IP Right Cessation
- 1975-09-25 SU SU752175364A patent/SU676164A3/ru active
- 1975-09-25 HU HU75PI00000490A patent/HU170883B/hu not_active IP Right Cessation
- 1975-09-25 ES ES441260A patent/ES441260A1/es not_active Expired
- 1975-09-26 BG BG031085A patent/BG35596A3/xx unknown
- 1975-09-26 AR AR260559A patent/AR212584A1/es active
- 1975-09-26 PL PL1975183616A patent/PL107232B1/pl unknown
- 1975-09-26 LU LU73467A patent/LU73467A1/xx unknown
- 1975-09-26 JP JP50116289A patent/JPS5159877A/ja active Granted
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