JPS5566576A - Novel carboxylic derivative and its preparation - Google Patents
Novel carboxylic derivative and its preparationInfo
- Publication number
- JPS5566576A JPS5566576A JP13892778A JP13892778A JPS5566576A JP S5566576 A JPS5566576 A JP S5566576A JP 13892778 A JP13892778 A JP 13892778A JP 13892778 A JP13892778 A JP 13892778A JP S5566576 A JPS5566576 A JP S5566576A
- Authority
- JP
- Japan
- Prior art keywords
- formula
- compound
- preparation
- carboxylic derivative
- novel carboxylic
- 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
- Heterocyclic Compounds Containing Sulfur Atoms (AREA)
- Pyrane Compounds (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
NEW MATERIAL:Carboxylic derivatives of formula I (A is O, S; R1 is H, methyl; R2 is H, lower alkyl).
EXAMPLE: 2-[Dibenz(b,f)apin-2-yl]propioic acid.
USE: They have anti-inflammatory activity and are used as anti-inflammotory. They are both orally and nonorally administered.
PREPARATION: A compound of formula II is heated in the presence of a dehydration agent as phosphoric acid, sulfuric acid, phosphorus pentoxide, or zinc chloride to produce the compound of formula I. The compound of formula II is obtained by reduction of compound of formula III. In another method, a compound of formula IV (R3 is alkyl) is hydrolyzed using an alkali to give the compound of formula I.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13892778A JPS5566576A (en) | 1978-11-13 | 1978-11-13 | Novel carboxylic derivative and its preparation |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13892778A JPS5566576A (en) | 1978-11-13 | 1978-11-13 | Novel carboxylic derivative and its preparation |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5566576A true JPS5566576A (en) | 1980-05-20 |
Family
ID=15233381
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13892778A Pending JPS5566576A (en) | 1978-11-13 | 1978-11-13 | Novel carboxylic derivative and its preparation |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5566576A (en) |
-
1978
- 1978-11-13 JP JP13892778A patent/JPS5566576A/en active Pending
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