JPS554334A - Pyranopyrazole derivative - Google Patents

Pyranopyrazole derivative

Info

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
Application number
JP7680578A
Other languages
Japanese (ja)
Inventor
Tomohiko Munakata
Yoichi Naka
Minoru Moriwaki
Kazuhiro Goto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Welfide Corp
Original Assignee
Welfide Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Welfide Corp filed Critical Welfide Corp
Priority to JP7680578A priority Critical patent/JPS554334A/en
Publication of JPS554334A publication Critical patent/JPS554334A/en
Pending legal-status Critical Current

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
JP7680578A 1978-06-24 1978-06-24 Pyranopyrazole derivative Pending JPS554334A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (2)

* Cited by examiner, † Cited by third party
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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