申请人:Suzuki Keisuke
公开号:US20050026978A1
公开(公告)日:2005-02-03
The present invention provides isoxazole derivatives represented by the following formula (I):
(wherein R
1
represents a hydrogen atom, C
1
-C
20
hydrocarbon group or —C(═O)OR
1a
(wherein R
1a
represents a C
1
-C
10
alkyl group, etc.); R
2
and R
3
represent a hydrogen atom, halogen atom, hydroxy group, C
1
-C
20
alkyl group or C
6
-C
20
aryl group, etc.; R
4
represents a hydrogen atom, halogen atom, hydroxy group, cyano group, nitro group, amino group, C
1
-C
20
hydrocarbon group, C
1
-C
10
alkoxy group, C
1
-C
10
acyl group, 5- to 7-membered heterocyclic group, etc.; R
5
represents a hydrogen atom, halogen atom, hydroxy group, optionally substituted C
1
-C
20
hydrocarbon group, C
1
-C
20
alkoxy group, 5- to 7-membered heterocyclic group, etc.; and, n represents 0, 1, 2, 3 or 4), and a process of producing the same. The compounds are useful as intermediates for synthesis of pharmaceutical compounds, agricultural chemicals, dye compounds, etc. having the isoxazole skeleton.
本发明提供了以下式(I)所表示的
异噁唑衍
生物:
其中,R1表示氢原子、C1-C20烃基或—C(═O)OR1a(其中,R1a表示C1-C10烷基等);R2和R3表示氢原子、卤素原子、羟基、C1-C20烷基或C6-C20芳基等;R4表示氢原子、卤素原子、羟基、
氰基、硝基、
氨基、C1-C20烃基、C1-C10烷氧基、C1-C10酰基、5-至7-成员杂环基等;R5表示氢原子、卤素原子、羟基、可选取代的C1-C20烃基、C1-C20烷氧基、5-至7-成员杂环基等;n表示0、1、2、3或4。本发明还提供了制备该
异噁唑衍
生物的方法。这些化合物可用作合成具有
异噁唑骨架的药物化合物、农药、
染料化合物等的中间体。