The present invention relates to novel isoxazole and thiazole compounds having an excellent lysophosphatidic acid (LPA) receptor antagonistic activity represented by general formula [1] or salts thereof:
wherein R1 and R2 represents an optionally substituted alkyl group or the like; R3 represents a hydrogen atom or the like; R4 represent a group selected from the group consisting of (I) optionally substituted phenyl, aryl, or heterocycle, (II) substituted or nonsubstituted alkyl, and (III) substituted or nonsubstituted alkenyl, alternatively, R3 and R4 may form a ring structure together with a carbon atom to which they bind; and X represents an oxygen atom or a sulfur atom, provided that, when R3 is a hydrogen atom, R4 represents a group other than methyl, and the use thereof as a medicine.
本发明涉及具有卓越的
溶血磷脂酸(LPA)受体拮抗活性的新型
异噁唑和
噻唑化合物,其通式表示为[1]或其盐:其中,R1和R2代表可选取代的烷基或类似物;R3代表
氢原子或类似物;R4代表从(I)可选取代的
苯基,芳基或杂环,(II)取代或未取代的烷基,以及(III)取代或未取代的
烯基的群中选择的群,或者,R3和R4可以与它们结合的
碳原子一起形成环结构;X代表
氧原子或
硫原子,前提是,当R3是
氢原子时,R4代表
甲基以外的群,以及其作为药物的用途。