申请人:——
公开号:US20040254141A1
公开(公告)日:2004-12-16
A class of 2′-fluoro-nucleoside compounds are disclosed which are useful in the treatment of hepatitis B infection, hepatitis C infection, HIV and abnormal cellular proliferation, including tumors and cancer. The compounds have the general formulae:
1
wherein
Base is a purine or pyrimidine base;
R
1
is OH, H, OR
3
, N
3
, CN, halogen, including F, or CF
3
, lower alkyl, amino, loweralkylamino, di(lower)alkylamino, or alkoxy, and base refers to a purine or pyrimidine base;
R
2
is H, phosphate, including monophosphate, diphosphate, triphosphate, or a stabilized phosphate prodrug; acyl, or other pharmaceutically acceptable leaving group which when administered in vivo, is capable of providing a compound wherein R
2
is H or phosphate; sulfonate ester including alkyl or arylalkyl sulfonyl including methanesulfonyl, benzyl, wherein the phenyl group is optionally substituted with one or more substituents as described in the definition of aryl given above, a lipid, an amino acid, peptide, or cholesterol; and
R
3
is acyl, alkyl, phosphate, or other pharmaceutically acceptable leaving group which when administered in vivo, is capable of being cleaved to the parent compound, or a pharmaceutically acceptable salt thereof.
本发明涉及一类2'-氟核苷化合物,其在治疗乙型肝炎感染、丙型肝炎感染、HIV和异常细胞增殖,包括肿瘤和癌症方面有用。该化合物具有以下通用式:1其中Base是嘌呤或嘧啶碱基;R1是OH、H、OR3、N3、CN、卤素,包括F或CF3、低烷基、氨基、低烷基氨基、二(低)烷基氨基或烷氧基,且base是指嘌呤或嘧啶碱基;R2是H、磷酸,包括一磷酸盐、二磷酸盐、三磷酸盐或稳定的磷酸盐前药;酰基或其他在体内可以提供R2为H或磷酸的药学上可接受的离去基;磺酸酯,包括烷基或芳基烷基磺酰,包括甲烷磺酰、苯甲基,其中苯基可以选择性地用上述芳基定义中描述的一个或多个取代基置换;脂质、氨基酸、肽或胆固醇;以及R3是酰基、烷基、磷酸盐或其他在体内可以裂解为母化合物的药学上可接受的离去基,或其药学上可接受的盐。