JPS572294A - Novel heterocyclic compound and its preparation - Google Patents
Novel heterocyclic compound and its preparationInfo
- Publication number
- JPS572294A JPS572294A JP7634680A JP7634680A JPS572294A JP S572294 A JPS572294 A JP S572294A JP 7634680 A JP7634680 A JP 7634680A JP 7634680 A JP7634680 A JP 7634680A JP S572294 A JPS572294 A JP S572294A
- Authority
- JP
- Japan
- Prior art keywords
- formula
- compound
- preparation
- lower alkyl
- carboxyl
- 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.)
- Pending
Links
Landscapes
- Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
NEW MATERIAL:Heterocyclic compounds of formula I [R1 is H, lower alkyl, substituted lower alkyl, lower alkanoyl; Y is S, >S(0)m (m is 1, 2), imino or lower alkyl-substituted imino; n is 1,2] and their salts.
EXAMPLE: 5-Oxo-2,3-dihydro-5H-thieno-[3,2-d]thiazolo[3,2-a]pyridine-1-oxide.
USE: Analgesic anti-inflammatory.
PREPARATION: A compound of formula II1 (A is carboxyl or cyano group; B is hydroxyl, lower alkoxy group, where when A is carboxyl, B is hydroxyl) and an equimolar or excessive amount of a compound of formula I1 are heated in an organic solvent inert to the reaction such as methanol, ethanol or dichlorobenzene, preferably in the presence of an acid catalyst such as acetic acid, to give the compound of formula I.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7634680A JPS572294A (en) | 1980-06-06 | 1980-06-06 | Novel heterocyclic compound and its preparation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7634680A JPS572294A (en) | 1980-06-06 | 1980-06-06 | Novel heterocyclic compound and its preparation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS572294A true JPS572294A (en) | 1982-01-07 |
Family
ID=13602791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7634680A Pending JPS572294A (en) | 1980-06-06 | 1980-06-06 | Novel heterocyclic compound and its preparation |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS572294A (en) |
-
1980
- 1980-06-06 JP JP7634680A patent/JPS572294A/en active Pending
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