An object of the present invention is to provide a method for producing an oxazole compound in a high yield.
The object can be achieved by a compound represented by Formula (11):
wherein R1 is a hydrogen atom or lower-alkyl group;
R2 is a 1-piperidyl group substituted at the 4-position with a substituent selected from
(A1a) a phenoxy group substituted on the phenyl moiety with one or more halogen-substituted lower-alkoxy groups,
(A1b) a phenoxy-substituted lower-alkyl group substituted on the phenyl moiety with one or more halogen-substituted lower-alkyl groups,
(A1c) a phenyl-substituted lower-alkoxy lower-alkyl group substituted on the phenyl moiety with halogen,
(A1d) a phenyl-substituted lower-alkyl group substituted on the phenyl moiety with one or more halogen-substituted lower-alkoxy groups,
(A1e) an amino group substituted with a phenyl group substituted with one or more halogen-substituted lower-alkoxy groups, and a lower-alkyl group, and
(A1f) a phenyl-substituted lower-alkoxy group substituted on the phenyl moiety with one or more halogen-substituted lower-alkoxy groups;
n is an integer from 1 to 6; and
X3 is an organic sulfonyloxy group.
本发明的目的是提供一种高产率合成
噁唑化合物的方法。该目的可以通过公式(11)所表示的化合物实现:其中,R1是氢原子或低烷基基团;R2是在4位被取代的1-
哌啶基团,所述取代基被选择自:(A1a)苯基取代苯基部分上带有一种或多种卤素取代的低烷氧基取代基的苯氧基;(A1b)苯基取代苯基部分上带有一种或多种卤素取代的低烷基取代基的苯氧基取代基;(A1c)苯基取代苯基部分上带有卤素的低烷氧基低烷基取代基的苯基取代基;(A1d)苯基取代苯基部分上带有一种或多种卤素取代的低烷氧基取代基的苯基取代基;(A1e)
氨基取代一种带有一种或多种卤素取代的低烷氧基的苯基取代的苯基,以及一种低烷基基团;和(A1f)苯基取代苯基部分上带有一种或多种卤素取代的低烷氧基取代基的苯基取代基。n是1到6的整数;X3是有机磺酰氧基团。