This invention is directed to compounds of formula (I):
wherein R
1
, R
2
, X, and n are as defined herein, including all crystalline forms and pharmaceutically acceptable salts thereof, with the provisos that when X is CH
2
, n is 1, and R
1
is —COOH, then R
2
cannot be
wherein A is CH
3
—, CH
3
CH
2
— or a haloalkyl of 1 to 2 carbon atoms, and B is a halogen; and
when X is CH
2
, n is 2, and R
1
is —COOH, then R
2
cannot be
The invention is also directed to compositions containing compounds of the invention and methods of using the compounds to treat or prevent hepatitis C virus infections.
本发明涉及式(I)的化合物:其中R1、R2、X和n如本文所定义,包括所有晶体形式和其药学上可接受的盐,但有以下限制:当X为
CH2,n为1,且R1为—COOH时,则R2不能为其中A为
CH3—, —或1至2个碳原子的卤代烷基,B为卤素;当X为 ,n为2,且R1为—COOH时,则R2不能为本发明还涉及含有该化合物的组合物以及使用该化合物治疗或预防丙型肝炎病毒感染的方法。