JPS554334A - Pyranopyrazole derivative - Google Patents
Pyranopyrazole derivativeInfo
- Publication number
- JPS554334A JPS554334A JP7680578A JP7680578A JPS554334A JP S554334 A JPS554334 A JP S554334A JP 7680578 A JP7680578 A JP 7680578A JP 7680578 A JP7680578 A JP 7680578A JP S554334 A JPS554334 A JP S554334A
- Authority
- JP
- Japan
- Prior art keywords
- compound
- lower alkyl
- pyranopyrazole
- derivative
- phenyl
- 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
Abstract
NEW MATERIAL:A pyranopyrazole derivative of formula I (R1 is lower alkyl, phenyl; R2 is H, lower alkyl, phenyl; Z is carboxyl, lower alkoxycarbonyl, carbamoyl, N-hydroxycarbamoyl, cyano, 1H-tetrazol-5-yl).
EXAMPLE: 4-Oxo-1,3-diphenyl-4H-pyrano[2,3-c]pyrazole-6-carboxylic acid ethyl ester.
USE: Drugs having immunoregulating activity, e.g. anti-rheumatic agent, carcinostatic agent, etc.
PROCESS: The objective compound III is prepared by the ring-closing reaction of a novel compound II (R3 is lower alkyl). Another objective compound I can be prepared from the compound III. The compound II is obtained by the reaction of a compound IV with a compound V.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7680578A JPS554334A (en) | 1978-06-24 | 1978-06-24 | Pyranopyrazole derivative |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7680578A JPS554334A (en) | 1978-06-24 | 1978-06-24 | Pyranopyrazole derivative |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS554334A true JPS554334A (en) | 1980-01-12 |
Family
ID=13615862
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7680578A Pending JPS554334A (en) | 1978-06-24 | 1978-06-24 | Pyranopyrazole derivative |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS554334A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63241055A (en) * | 1987-03-28 | 1988-10-06 | Sakai Chem Ind Co Ltd | Chlorinated polymer composition |
EP1083897A4 (en) * | 1998-06-03 | 2003-01-02 | Merck & Co Inc | Hiv integrase inhibitors |
-
1978
- 1978-06-24 JP JP7680578A patent/JPS554334A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63241055A (en) * | 1987-03-28 | 1988-10-06 | Sakai Chem Ind Co Ltd | Chlorinated polymer composition |
EP1083897A4 (en) * | 1998-06-03 | 2003-01-02 | Merck & Co Inc | Hiv integrase inhibitors |
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