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;
R
1
is selected from:
an optionally substituted acyclic C
1-8
hydrocarbon group wherein one carbon atom of the acyclic C
1-8
hydrocarbon group may optionally be replaced by O, S, NR
c
, S(O) or SO
2
, or two adjacent carbon atoms of the acyclic C
1-8
hydrocarbon group may optionally be replaced by CONR
c
, NR
c
CO, NR
c
SO
2
or SO
2
NR
c
provided that in each case at least one carbon atom of the acyclic C
1-8
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;
R
2
is hydrogen or X—R
8
;
X is a C
1-8
alkanediyl group wherein one carbon atom of the C
1-8
alkanediyl group may optionally be bonded to a —CH
2
—CH
2
— moiety to form a cyclopropane-1,1-diyl group or two adjacent carbon atoms of the C
1-8
alkanediyl group may optionally be bonded to a —(CH
2
)
n
moiety, where n is 1 to 5, to form a C
3-7
-cycloalkane-1,2-diyl group;
R
3
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;
R
4
is hydrogen or R
4a
wherein R
4a
is halogen; cyano; C
1-4
alkyl; fluoro-
1-4
alkyl; C
1-4
alkoxy; fluoro-C
1-4
alkoxy; hydroxy-C
1-4
alkyl; or C
1-2
alkoxy-C
1-4
alkyl;
R
5
is hydrogen or R
5a
wherein R
5a
is selected from C
1-2
alkyl optionally substituted with fluorine; C
1-3
alkoxy optionally substituted with fluorine; halogen; cyclopropyl; and cyano;
R
8
is hydroxy or C(═O)NR
10
R
11
; provided that when R
8
is hydroxy, there are at least two carbon atoms in line between the hydroxy group and the nitrogen atom to which X is attached;
R
10
is hydrogen or C
1-4
alkyl; and
R
11
is hydrogen; amino-C
2-4
alkyl or hydroxy-C
2-4
alkyl;
but excluding the compounds 1-(3-benzoylphenyl)-ethylamine and 1-(3-furan-2-oylcarbonylphenyl)-ethylamine.
该发明提供了一些化合物,可用于治疗丙型肝炎病毒(HCV)感染。这些化合物的
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:可选取取代的非环C1-8
碳氢化合物基团,其中非环C1-8
碳氢化合物基团中的一个
碳原子可选地被O、S、NRc、S(O)或SO2替换,或者非环C1-8
碳氢化合物基团中的两个相邻
碳原子可选地被CONRc、NRcCO、NRcSO2或SO2NRc替换,但在每种情况下至少有一个非环C1-8
碳氢化合物基团中的
碳原子保留;以及可选取取代的3-7个环成员的单环
碳环或杂环基团,其中0、1、2、3或4个是选自O、N和S的杂环成员;R2为
氢或X-R8;X为C1-8烷二基基团,其中C1-8烷二基基团中的一个
碳原子可选地与-
CH2- -基团连接以形成
环丙烷-1,1-二基基团,或者C1-8烷二基基团中的两个相邻
碳原子可选地与-( )n基团连接,其中n为1至5,以形成C3-7
环烷-1,2-二基基团;R3为可选取取代的3-10个成员的单环或双环
碳环或杂环环,其中包含0-3个选自N,O和S的杂环成员;R4为
氢或R4a,其中R4a为卤素;
氰基;C1-4烷基;
氟代-1-4烷基;C1-4烷
氧基;
氟代-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为选自C1-2烷基(可选取
氟);C1-3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,在羟基团和X连接的
氮原子之间至少有两个
碳原子连线;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。