申请人:Wakunaga Pharmaceutical Co., Ltd.
公开号:EP3604305A1
公开(公告)日:2020-02-05
It is intended to provide a novel compound having high antitumor activity and low toxicity to normal cells. The present invention provides a pyridone carboxylic acid derivative represented by the following formula (1) or a salt thereof wherein R1 represents a hydrogen atom, a halogen atom or the like; R2 represents a hydrogen atom, a halogen atom or the like; R3 to R6 each represent a hydrogen atom or the like; R7 represents a hydrogen atom or the like; R8 represents a hydrogen atom, a halogen atom, the following formula (a) (wherein Ra1 and Ra2 each represent a hydrogen atom, a hydroxy group, an optionally substituted lower alkyl group or the like) or the like, or R7 and R8 together represent =N-OR10 (wherein R10 represents a hydrogen atom, an optionally substituted lower alkyl group, or an aralkyl group), or R7 and R8 form an optionally substituted 4- to 6-membered saturated hetero ring together with the adjacent carbon atom, or the like; R9 represents a hydrogen atom or the like; X represents a nitrogen atom or the like; and Y represents a nitrogen atom or the like.
本发明旨在提供一种具有高抗肿瘤活性且对正常细胞毒性低的新型化合物。本发明提供了由下式(1)代表的吡啶酮羧酸衍生物或其盐 其中 R1 代表氢原子、卤素原子或类似物;R2 代表氢原子、卤素原子或类似物;R3 至 R6 各代表氢原子或类似物;R7 代表氢原子或类似物;R8 代表氢原子、卤素原子、下式(a)(其中 Ra1 和 Ra2 各自代表氢原子、羟基、任选取代的低级烷基或类似基团)或类似基团,或 R7 和 R8 共同代表 =N-OR10 (其中 R10 代表氢原子、任选取代的低级烷基或芳烷基),或 R7 和 R8 与相邻碳原子一起形成任选取代的 4 至 6 元饱和杂环,或类似基团;R9 代表氢原子或类似物;X 代表氮原子或类似物;Y 代表氮原子或类似物。