发明名称 PROCESS FOR PRODUCTION OF 4 - SUBSTITUTED 1,2-DIPHENYL - 3,5 - DIOXO PYRAZALIDINES
摘要 Title compds. I ≮R,R1 = H, lower alkyl, phenyl, -COOR2 (R2 = H, lower alkyl); A= H, OH≉ useful as antiinflammatory were prepd. by the reaction of compd. II and III(Ar = optionally substituted phenyl group with methyl, methoxy, phenyl). Thus, NaH and p-hydroxyazobenzene soln. were mixed in THF, stirred for 15 min and cooled, in which MEM-chloride added, stirred, washed, extracted and evaporized to give oily p-hydroxyazobenzene-β-methoxyethoxy methyl ether(MEM).
申请公布号 KR830001100(A) 申请公布日期 1983.06.11
申请号 KR19790001150 申请日期 1979.04.12
申请人 ISTITUTO DE ANGELIS P A 发明人 DONETTI A;CEREDA E
分类号 C07D231/34;(IPC1-7):C07D231/34 主分类号 C07D231/34
代理机构 代理人
主权项
地址