The invention provides compounds that are useful in the treatment of hepatitis C virus (HCV) infections. The compounds have the formula (1):
or a salt, N-oxide, tautomer or stereoisomer thereof, wherein A is CH or N; E is CH or N;
R1 is selected from:
an optionally substituted acyclic C1-8 hydrocarbon group wherein one carbon atom of the acyclic C1-8 hydrocarbon group may optionally be replaced by O, S, NRc, S(O) or SO2, or two adjacent carbon atoms of the acyclic C1-8 hydrocarbon group may optionally be replaced by CONRc, NRcCO, NRcSO2 or SO2NRc provided that in each case at least one carbon atom of the acyclic C1-8 hydrocarbon group remains; and
an optionally substituted monocyclic carbocyclic or heterocyclic group of 3 to 7 ring members, of which 0, 1, 2, 3 or 4 are heteroatom ring members selected from O, N and S;
R2 is hydrogen or X—R8;
X is a C1-8 alkanediyl group wherein one carbon atom of the C1-8 alkanediyl group may optionally be bonded to a —CH2—CH2— moiety to form a cyclopropane-1,1-diyl group or two adjacent carbon atoms of the C1-8 alkanediyl group may optionally be bonded to a —(CH2)n moiety, where n is 1 to 5, to form a C3-7-cycloalkane-1,2-diyl group;
R3 is an optionally substituted 3- to 10-membered monocyclic or bicyclic carbocyclic or heterocyclic ring containing 0-3 heteroatom ring members selected from N, O and S;
R4 is hydrogen or R4a wherein R4a is halogen; cyano; C1-4 alkyl; fluoro-1-4 alkyl; C1-4 alkoxy; fluoro-C1-4 alkoxy; hydroxy-C1-4 alkyl; or C1-2 alkoxy-C1-4 alkyl;
R5 is hydrogen or R5a wherein R5a is selected from C1-2 alkyl optionally substituted with fluorine; C1-3 alkoxy optionally substituted with fluorine; halogen; cyclopropyl; and cyano;
R8 is hydroxy or C(═O)NR10R11; provided that when R8 is hydroxy, there are at least two carbon atoms in line between the hydroxy group and the nitrogen atom to which X is attached;
R10 is hydrogen or C1-4 alkyl; and
R11 is hydrogen; amino-C2-4 alkyl or hydroxy-C2-4 alkyl;
but excluding the compounds 1-(3-benzoylphenyl)-ethylamine and 1-(3-furan-2-oylcarbonylphenyl)-ethylamine.
本发明提供了一些化合物,可用于治疗丙型肝炎病毒(HCV)感染。该化合物的
化学式为(1):或其盐,N-
氧化物,互变异构体或立体异构体,其中A为CH或N;E为CH或N;R1选自:一个可选取取代的链状C1-8烃基,其中链状C1-8烃基的一个
碳原子可选取O、S、NRc、S(O)或SO2替换,或链状C1-8烃基的两个相邻
碳原子可选取CONRc、NRcCO、NRcSO2或SO2NRc替换,但是在每种情况下至少有一个
碳原子保留在链状C1-8烃基中;和一个可选取取代的3至7个环成员的单
环烃环或杂
环烃环,其中0、1、2、3或4个是O、N和S选择的杂环成员;R2为
氢或X-R8;X为C1-8
脂肪二基基,其中C1-8
脂肪二基基的一个
碳原子可选择与-
CH2- -基团结合形成
环丙烷-1,1-二基基,或C1-8
脂肪二基基的两个相邻
碳原子可选择与-( )n基团结合,其中n为1至5,形成C3-7
环烷-1,2-二基基;R3为可选取取代的3-至10个成员的单环或双
环烃环或杂
环烃环,其中包含0-3个N、O和S选择的杂环成员;R4为
氢或R4a,其中R4a为卤素;
氰基;C1-4烷基;
氟-1-4烷基;C1-4烷
氧基;
氟-C1-4烷
氧基;羟基-C1-4烷基;或C1-2烷
氧基-C1-4烷基;R5为
氢或R5a,其中R5a选自可选取取代的C1-2烷基,该烷基可选取
氟;可选取取代的C1-3烷
氧基,该烷
氧基可选取
氟;卤素;环丙基;和
氰基;R8为羟基或C(=O)NR10R11;但是当R8为羟基时,羟基团与X所连接的
氮原子之间至少有两个
碳原子在一条直线上;R10为
氢或C1-4烷基;R11为
氢;
氨基-C2-4烷基或羟基-C2-4烷基;但不包括化合物1-(3-
苯甲酰基
苯基)-
乙胺和1-(3-
呋喃-2-酰基
苯基)-
乙胺。