申请人:Yoshitomi Pharmaceutical Industries, Ltd.
公开号:EP0043858A1
公开(公告)日:1982-01-20
Hetero ring-substituted oxoalkanoic acid derivatives having an immunity-controlling action and represented by the following general formula:
wherein R' represents a hydrogen atom, a lower alkyl group, or a phenyl, thienyl or furyl group optionally having in an optional position of the nucleus at least one substitutent of halogen, lower alkyl, lower alkoxy, mono- or di-lower alkylamino-substituted lower alkoxy, lower alkylthio, lower alkylsulfinyl, amino, nitro or cyano, R2 and R3 each represents a hydrogen atom or a lower alkyl group, A represents a lower alkylene group, X represents a sulfur atom or a vinylene group, Y represents a nitrogen atom or a methine group optionally having lower alkyl as a substituent, and Z represents a carbonyl group or a single bond.
具有免疫调节作用的异环取代氧代烷酸衍生物,由以下通式表示:
其中,R'代表氢原子、低级烷基或苯基、噻吩基或呋喃基,在核的任选位置上可任选具有至少一个卤素、低级烷基、低级烷氧基、单或双低级烷基氨基取代的低级烷氧基、低级烷硫基、低级烷基亚磺基、氨基、硝基或氰基的取代基、R2 和 R3 分别代表氢原子或低级烷基,A 代表低级亚烷基,X 代表硫原子或乙烯基,Y 代表氮原子或可选具有低级烷基作为取代基的甲基,Z 代表羰基或单键。