To provide a novel furanone derivative, and a medicine including the same. The furanone derivative is represented by the formula (I):
wherein A represents —COOR1 or a hydrogen atom; R1 represents a hydrogen atom, an optionally substituted hydrocarbon group, or an optionally substituted heterocycle; R2 and R3 are the same or different and each independently represent a hydrogen atom, an optionally substituted hydrocarbon group, an optionally substituted phenyl group, an optionally substituted heterocycle, an optionally substituted heterocyclic fused ring, or an optionally substituted amino group; or alternatively, R2 and R3, taken together with the nitrogen atom to which they are attached, may form an optionally substituted heterocycle or an optionally substituted heterocyclic fused ring; and R4 represents a hydrogen atom or a halogen atom; with the proviso that when A represents —COOR1, R2 and R3 are not optionally substituted amino groups at the same time, and when A represents a hydrogen atom, R3 represents a hydrogen atom.
提供一种新的
呋喃酮衍
生物,以及包括该衍
生物的药物。该
呋喃酮衍
生物由式(I)表示:其中,A代表—COOR1或
氢原子;R1代表
氢原子、可选取代的烃基或可选取代的杂环;R2和R3相同或不同,且每个独立地代表
氢原子、可选取代的烃基、可选取代的
苯基、可选取代的杂环、可选取代的杂环融合环或可选取代的
氨基;或者,R2和R3连同它们所连接的
氮原子可以形成可选取代的杂环或可选取代的杂环融合环;R4代表
氢原子或卤素原子;但是,当A代表—COOR1时,R2和R3不能同时为可选取代的
氨基,当A代表
氢原子时,R3代表
氢原子。