-
公开(公告)号:US5310926A
公开(公告)日:1994-05-10
申请号:US121557
申请日:1993-09-16
IPC分类号: C07D261/08
CPC分类号: C07D261/08
摘要: The present invention provides a process for producing isoxazole derivatives represented by the formula ##STR1## wherein R.sup.1 and R.sup.2 are the same or different and are each a hydrogen atom or lower alkoxyl, and R.sup.3 is cyano or alkoxycarbonyl, the process being characterized by oxidizing an .alpha., .beta.-unsaturated ketoxime derivative represented by the formula ##STR2## wherein R.sup.1 , R.sup.2 and R.sup.3 are as defined above. The isoxazole derivatives (II) to be produced by the process of the present invention are useful as intermediates for preparing (3,4-diarylisoxazol-5-yl) acetic acid derivatives which are useful as anti-inflammatory agents, analgesics and antipyretics.
摘要翻译: 本发明提供一种制备由式(II)表示的异恶唑衍生物的方法,其中R 1和R 2相同或不同,各自为氢原子或低级烷氧基,R 3为氰基或烷氧基羰基,该方法的特征在于 通过氧化由式(I)表示的α,β-不饱和酮肟衍生物,其中R 1,R 2和R 3如上所定义。 通过本发明的方法生产的异恶唑衍生物(II)可用作制备(3,4-二芳基异恶唑-5-基)乙酸衍生物的中间体,其可用作抗炎剂,止痛剂和解热药。
-
2.
公开(公告)号:US5142091A
公开(公告)日:1992-08-25
申请号:US690939
申请日:1991-07-10
IPC分类号: C07D261/08 , C07C69/738 , C07C251/48 , C07C255/37 , C07C255/40 , C07C255/62 , C07C255/64
CPC分类号: C07C69/738 , C07C251/48 , C07C255/40 , C07C255/64
摘要: The present invention provides an .alpha., .beta.-unsaturated ketone and ketoxime derivative represented by the formula ##STR1## wherein Y is oxygen atom or hydroxyimino group, Z is cyano or alkoxycarbonyl group, R.sup.1 and R.sup.2 are the same or different and are each hydrogen atom or lower alkoxyl group.The .alpha., .beta.-unsaturated ketones and ketoxime derivatives of the invention are useful as an intermediate for preparing a (3,4-diarylisoxazol-5-yl)acetic acid derivatives which is useful as an anti-inflammatory agent, analgesic and antipyretic.
摘要翻译: PCT No.PCT / JP90 / 01512 Sec。 371日期:1991年7月10日 102(e)日期1991年7月10日PCT 1990年11月19日PCT PCT。 公开号WO91 / 07374 日本1991年5月30日。本发明提供由式(I)表示的+60,β-不饱和酮和酮肟衍生物,其中Y是氧原子或羟基亚氨基,Z是氰基或烷氧基羰基,R1和R2 相同或不同,为氢原子或低级烷氧基。 本发明的α,β-不饱和酮和酮肟衍生物可用作制备(3,4-二芳基异恶唑-5-基)乙酸衍生物的中间体,其可用作抗炎剂,镇痛和解热。
-