申请人:——
公开号:US20020198171A1
公开(公告)日:2002-12-26
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.
本发明揭示了一类2'-氟核苷类化合物,其可用于治疗乙型肝炎感染、丙型肝炎感染、艾滋病毒和异常细胞增殖,包括肿瘤和癌症。该化合物具有以下通式:
其中,基团表示嘌呤或嘧啶碱基;R1为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,基团表示嘌呤或嘧啶碱基;R2为H、磷酸酯(包括一磷酸盐、二磷酸盐、三磷酸盐或稳定的磷酸酯前药)、酰基或其他在体内可提供R2为H或磷酸酯的药学上可接受的离去基团;磺酸酯包括烷基或芳基烷基磺酰基,包括甲烷磺酰基、苄基,其中苯基基团可选择地被一个或多个如上所述的取代基所取代,脂质、氨基酸、肽或胆固醇;以及R3为酰基、烷基、磷酸酯或其他在体内可裂解为母体化合物的药学上可接受的离去基团,或其药学上可接受的盐。