申请人:Taiho Pharmaceutical Co., Ltd.
公开号:US08058261B2
公开(公告)日:2011-11-15
To provide a compound which exhibits excellent anti-tumor activity and excellent oral absorption and which is a useful anti-tumor drug.
The invention provides a 3′-ethynylcytidine derivative represented by formula (1):
(wherein X represents a (substituted) alkylcarbonyl group, a (substituted) alkoxycarbonyl group, or a hydrogen atom; one of Y and Z represents a hydrogen atom or a group represented by (R1)(R2)(R3)Si— and the other represents a group represented by (R4)(R5)(R6)Si—; and R1, R2, R3, R4, R5, and R6 each represent a (substituted) alkyl group, a (substituted) cyclic alkyl group, or a (substituted) aryl group) or a salt thereof.
提供一种表现出优异的抗肿瘤活性和口服吸收性的化合物,该化合物是一种有用的抗肿瘤药物。本发明提供了一种由公式(1)表示的3'-乙炔基胞苷衍生物:(其中X代表(取代)烷基羰基基团,(取代)烷氧羰基基团或氢原子;Y和Z中的一个代表氢原子或(R1)(R2)(R3)Si-所代表的基团,另一个代表(R4)(R5)(R6)Si-所代表的基团;R1、R2、R3、R4、R5和R6各自代表(取代)烷基、(取代)环烷基或(取代)芳基)或其盐。