929891-56-5Relevant articles and documents
BIPHENYL DERIVATIVES AND THEIR USE IN TREATING HEPATITIS C
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Page/Page column 142, (2008/06/13)
A compound which is a biphenyl derivative of formula (I), or a pharmaceutically acceptable salt thereof wherein: R1 is a C1-C6 alkyl group or a moiety -A1, -L1-A1, -A1-A1′, -L1-A1-A1′, -A1-L1-A1′, -A1-Y1-A1′, -A1-Het1-A1′, -L1-A1-Y1-A1′, -L1-A1-Het1-A1′, -L1-Het1-A1, -L1-Y1-A1, -L1-Y1-Het1-A1, -L1-Het1-Y1-A1, -L1-Y1-Het1-L1′, -A1-Y1-Het1-A1′, -A1-Het1-Y1-A1′, -A1-Het1-L1-A1′, -A1-L1-Het1-A1′ or -L1-Het1-L1′; - A and B are the same or different and each represent a direct bond or a -CO- NR′-, -NR′-CO-, -NR′-CO2-, -CO-, -NR′-CO-NR′′-, -NR′-S(O)2-, -S(O)2-NR′-, -SO2-, -NR′-, -NR′-CO-CO-, -CO-O-, -O-CO-, -(C1-C2 alkylene)-NR′- or -(C1-C2 hydroxyalkylene)-NR′ - moiety, wherein R′ and R′′ are the same or different and each represent hydrogen or C1-C4 alkyl; - R2 and R3 are the same or different and each represent C1-C4 alkyl, C1-C4 alkoxy, C1-C4 haloalkyl, C1-C4 haloalkoxy or halogen; n and m are the same or different and each represent 0 or 1 ; R4 is a C1-C6 alkyl group or a moiety -A4, -L4-A4, -A4-A4′, -L4-A4-A4′ , -A4-L4-A4′, -A4-Y4-A4′, -A4-Het4-A4′, -L4-A4-Y4-A4′, -L4-A4-Het4-A4′, -L4-Het4-A4, -L4-Y4-A4, -L4-Y4-Het4-A4, -L4-Het4-Y4-A4, -L4-Y4-Het4-L4′, -A4-Y4-Het4-A4′, -A4-Het4-Y4-A4′, -A4-Het4-L4-A4′, -A4-L4-Het4-A4′ or -L4-Het4-L4′, each A1, A4, A1′ and A4′ are the same or different and represent a phenyl, 5- to 10- membered heteroaryl, 5- to 10- membered heterocyclyl or C3-C8 carbocyclyl moiety; each L1 and L4 is the same or different and represents a C1-C4 alkylene or a C1-C4 hydroxyalkylene group; each Y1 and Y4 is the same or different and represents -CO-, -SO- or -S(O)2-; each L1′ and L4′ is the same or different and represents hydrogen or a C1-C4 alkyl group; and each Het1 and Het4 is the same or different and represents -O-, -S- or -NR′-, wherein R′ is hydrogen or a C1-C4 alkyl group, the phenyl, heteroaryl, heterocyclyl and carbocyclyl moieties in R1 and R4 being optionally fused to a phenyl, 5- to 10- membered heteroaryl or 5- to 10- membered heterocyclyl ring; and the phenyl, heteroaryl, heterocyclyl and carbocyclyl moieties in R1 and R4 being unsubstituted or substituted by (a) a single unsubstituted substituent selected from -(C1-C4 alkyl)-X1, -CO2R′, -SO2NR′R′′, -S(O)2-R′, -CONR′R′′, -NR′-CO-R′′′, -NR′-S(O)2-R′′′, -CO-NR′-(C1-C4 alkyl)-NR′R′′ and -CO-O-(C1-C4 alkyl)-NR′R′′ and/or (b) 1, 2 or 3 unsubstituted substituents selected from -(C1-C4 alkyl)-X2, halogen, C1-C4 alkyl, C1-C4 alkoxy, C1-C4 haloalkyl, C1-C4 haloalkoxy, C1-C4 hydroxyalkyl, hydroxy, cyano, nitro and -NR′R′′, wherein X1 is -CO2R′, -SO2-R′, -NR′-CO2-R′′, -NR′-S(O)2-R′′′, -CONR′R′′ or -SO2-NR′R′′, each X2 is the same or different and is cyano, nitro or -NR′R′′, each R′ and R′′ is the same or different and represents hydrogen or C1-C4 alkyl and each R′′′ is the same or different and represents C1-C4 alkyl.
