IE831075L - Thiophene derivatives - Google Patents
Thiophene derivativesInfo
- Publication number
- IE831075L IE831075L IE831075A IE107583A IE831075L IE 831075 L IE831075 L IE 831075L IE 831075 A IE831075 A IE 831075A IE 107583 A IE107583 A IE 107583A IE 831075 L IE831075 L IE 831075L
- Authority
- IE
- Ireland
- Prior art keywords
- carbon atoms
- alkyl radical
- alkylmalonate
- formula
- image
- Prior art date
Links
- 150000003577 thiophenes Chemical class 0.000 title 1
- 125000004432 carbon atom Chemical group C* 0.000 abstract 3
- -1 2-thiophene acetic acid compound Chemical class 0.000 abstract 2
- 101100490437 Mus musculus Acvrl1 gene Proteins 0.000 abstract 1
- 239000003814 drug Substances 0.000 abstract 1
- 125000005843 halogen group Chemical group 0.000 abstract 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D333/00—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom
- C07D333/02—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings
- C07D333/04—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings not substituted on the ring sulphur atom
- C07D333/06—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings not substituted on the ring sulphur atom with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to the ring carbon atoms
- C07D333/24—Radicals substituted by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Plural Heterocyclic Compounds (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Heterocyclic Compounds Containing Sulfur Atoms (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
Abstract
A 2-thiophene acetic acid compound of formula (I): <IMAGE> in which: R represents an alkyl radical of 1 to 4 carbon atoms; and R1, R2 and R3 are the same or different and each represents a hydrogen atom, an alkyl radical of 1 to 4 carbon atoms or a halogen atom; is prepared by decarbalkoxylating an alkylmalonate of formula (IV): <IMAGE> in which R, R1, R2 and R3 are as defined above and Alk1 and Alk2 are the same or different and each represents an alkyl radical of 1 to 4 carbon atoms. The 2-thiophene acetic acid compound is an intermediate in the production of pharmaceuticals. The alkylmalonate used is itself claimed per se.
[GB2132607A]
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8220271A FR2537137B1 (en) | 1982-12-03 | 1982-12-03 | PROCESS FOR THE PREPARATION OF ACETIC 2-THIOPHENE ACID DERIVATIVES AND INTERMEDIATE PRODUCTS NECESSARY FOR THEIR PREPARATION |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IE831075L true IE831075L (en) | 1984-06-03 |
| IE55075B1 IE55075B1 (en) | 1990-05-23 |
Family
ID=9279757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IE1075/83A IE55075B1 (en) | 1982-12-03 | 1983-05-10 | Preparation of thiophene compounds |
Country Status (22)
| Country | Link |
|---|---|
| JP (1) | JPS59106482A (en) |
| KR (1) | KR900005681B1 (en) |
| AT (1) | AT392784B (en) |
| AU (1) | AU556803B2 (en) |
| BE (1) | BE896439A (en) |
| CA (1) | CA1201441A (en) |
| CH (2) | CH659817A5 (en) |
| DE (1) | DE3314029A1 (en) |
| DK (2) | DK160427C (en) |
| ES (1) | ES8401957A1 (en) |
| FI (1) | FI83646C (en) |
| FR (1) | FR2537137B1 (en) |
| GB (1) | GB2132607B (en) |
| HU (1) | HU192136B (en) |
| IE (1) | IE55075B1 (en) |
| IT (1) | IT1174757B (en) |
| LU (1) | LU84748A1 (en) |
| NL (1) | NL8301692A (en) |
| NZ (1) | NZ204509A (en) |
| PT (1) | PT76534B (en) |
| SE (2) | SE453992B (en) |
| ZA (1) | ZA832698B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE58909563D1 (en) * | 1988-04-22 | 1996-02-22 | Byk Gulden Lomberg Chem Fab | 3-anilino-2-hydroxycarbonyl-4-thiophenacetic acids |
| IT1276738B1 (en) * | 1995-06-16 | 1997-11-03 | Erregierre Spa | PROCESS FOR THE PREPARATION OF DERIVATIVES OF -METHYL-2- THIOPHENEACETIC ACID |
| DE102004008807A1 (en) | 2004-02-20 | 2005-09-08 | Bayer Cropscience Ag | pyrazolopyrimidine |
| CN113896709B (en) * | 2021-11-22 | 2023-02-28 | 南京一苇医药科技有限公司 | Synthetic method of benzothiophene-3-acetic acid |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB683337A (en) * | 1949-10-01 | 1952-11-26 | Warner Hudnut Inc | Improvements in or relating to the preparation of antispasmodic compounds |
| IE33054B1 (en) * | 1968-04-16 | 1974-03-06 | Ici Ltd | Heterocyclic compounds |
| FR2260575A1 (en) * | 1974-02-11 | 1975-09-05 | Innothera Lab Sa | Cyclohexyl 3-thienyl acetic acid prodn - from methyl 3-thienylacetate through diethyl cyclohexyl 3-thienyl malonate as starting material for basic esters as drugs |
| GB2003570B (en) * | 1977-06-08 | 1982-01-20 | Imi Opella Ltd | Stop valve |
| FR2421897A1 (en) * | 1978-04-04 | 1979-11-02 | Labaz | Alpha substd. 3-thienyl:acetamide derivs. - useful as hypnotic, anticonvulsant and tranquillising agents |
-
1982
- 1982-12-03 FR FR8220271A patent/FR2537137B1/en not_active Expired
-
1983
- 1983-03-28 DK DK139983A patent/DK160427C/en not_active IP Right Cessation
- 1983-03-30 SE SE8301785A patent/SE453992B/en not_active IP Right Cessation
- 1983-03-31 FI FI831115A patent/FI83646C/en not_active IP Right Cessation
- 1983-04-05 ES ES521230A patent/ES8401957A1/en not_active Expired
- 1983-04-11 PT PT76534A patent/PT76534B/en not_active IP Right Cessation
- 1983-04-12 BE BE0/210536A patent/BE896439A/en unknown
- 1983-04-12 CH CH4155/85A patent/CH659817A5/en not_active IP Right Cessation
- 1983-04-12 CH CH1967/83A patent/CH655722A5/en not_active IP Right Cessation
- 1983-04-14 HU HU831308A patent/HU192136B/en not_active IP Right Cessation
- 1983-04-14 LU LU84748A patent/LU84748A1/en unknown
- 1983-04-15 AU AU13574/83A patent/AU556803B2/en not_active Ceased
- 1983-04-18 ZA ZA832698A patent/ZA832698B/en unknown
- 1983-04-18 DE DE19833314029 patent/DE3314029A1/en active Granted
- 1983-04-23 KR KR1019830001729A patent/KR900005681B1/en not_active Expired
- 1983-05-04 IT IT48215/83A patent/IT1174757B/en active
- 1983-05-09 GB GB08312701A patent/GB2132607B/en not_active Expired
- 1983-05-10 IE IE1075/83A patent/IE55075B1/en not_active IP Right Cessation
- 1983-05-11 NL NL8301692A patent/NL8301692A/en active Search and Examination
- 1983-05-20 JP JP58087835A patent/JPS59106482A/en active Granted
- 1983-06-09 NZ NZ204509A patent/NZ204509A/en unknown
- 1983-07-28 CA CA000433421A patent/CA1201441A/en not_active Expired
- 1983-08-08 AT AT2866/83A patent/AT392784B/en not_active IP Right Cessation
-
1987
- 1987-09-09 SE SE8703494A patent/SE457724B/en not_active IP Right Cessation
-
1990
- 1990-06-06 DK DK138490A patent/DK164550C/en not_active IP Right Cessation
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM4A | Patent lapsed |