- Synthesis and SAR of potent inhibitors of the Hepatitis C virus NS3/4A protease: Exploration of P2 quinazoline substituents
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Novel NS3/4A protease inhibitors comprising quinazoline derivatives as P2 substituent were synthesized. High potency inhibitors displaying advantageous PK properties have been obtained through the optimization of quinazoline P2 substituents in three series exhibiting macrocyclic P2 cyclopentane dicarboxylic acid and P2 proline urea motifs. For the quinazoline moiety it was found that 8-methyl substitution in the P2 cyclopentane dicarboxylic acid series improved on the metabolic stability in human liver microsomes. By comparison, the proline urea series displayed advantageous Caco-2 permeability over the cyclopentane series. Pharmacokinetic properties in vivo were assessed in rat on selected compounds, where excellent exposure and liver-to-plasma ratios were demonstrated for a member of the 14-membered quinazoline substituted P2 proline urea series.
- Nilsson, Magnus,Belfrage, Anna Karin,Lindstroem, Stefan,Waehling, Horst,Lindquist, Charlotta,Ayesa, Susana,Kahnberg, Pia,Pelcman, Mikael,Benkestock, Kurt,Agback, Tatiana,Vrang, Lotta,Terelius, Ylva,Wikstroem, Kristina,Hamelink, Elizabeth,Rydergard, Christina,Edlund, Michael,Eneroth, Anders,Raboisson, Pierre,Lin, Tse-I,de Kock, Herman,Wigerinck, Piet,Simmen, Kenneth,Samuelsson, Bertil,Rosenquist, Asa
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scheme or table
p. 4004 - 4011
(2010/08/06)
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- Macrocylic Inhibitors of Hepatitis C Virus
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Compounds of the formula I: and N-oxides, salts, and stereoisomers thereof wherein A is OR1, NHS(═O)pR2; wherein; R1 is hydrogen, C1-C6alkyl, C0-C3alkylenecarbocyclyl, C0-C3alkylene-heterocyclyl;R2 is C1-C6alkyl, C0-C3alkylenecarbocyclyl, C0-C3alkyleneheterocyclyl;p is independently 1 or 2;n is 3, 4, 5 or 6; — denotes an optional double bond;L is N or CRz; Rz is H or forms a double bond with the asterisked carbon;Rq is H or when L is CRz, Rq can also be C1-C6alkyl;Rr is quinazolinyl, optionally substituted with one two or three substituents each independently selected from C1-C6 alkyl, C1-C6alkoxy, hydroxyl, halo, haloC1-C6alkyl, amino, mono- or dialkylamino, mono- or dialkylaminocarbonyl, C1-C6alkyl-carbonylamino, C0-C3alkylenecarbocyclyl and C0-C3 alkyleneheterocyclyl;R5 is hydrogen, C1-C6alkyl, C1-C6alkoxyC1-C6alkyl or C3-C7cycloalkyl;R6 is hydrogen, C1-C6alkyl, C1-C6alkoxy, C0-C3alkylenecarbocyclyl, C0-C3alkylene-heterocyclyl, hydroxy, bromo, chloro or fluoro have utility in the treatment or prophylaxis of flaviviral infections such as HCV
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- Macrocyclic Inhibitors of Hepatitis C Virus
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Compounds of the formula (I): and N-oxides, salts and stereoisomers thereof wherein A is OR1, NHS(═O)pR2, NHR3, NRaRb, C(═O)NHR3 or C(═O)NRaRb wherein; R1 is hydrogen, C1-C6alkyl, C0-C3alkylenecarbocyclyl, C0-C3alkyleneheterocyclyl; R2 is C1-C6alkyl, C0-C3alkylenecarbocyclyl, C0-C3alkyleneheterocyclyl or NRaRb; R3 is C1-C6alkyl, C0-C3alkylenecarbocyclyl, C0-C3alkyleneheterocyclyl, —OC1-C6alkyl, —OC0-C3alkylenecarbocyclyl, —OC0-C3alkyleneheterocyclyl; wherein any alkyl, carbocyclyl or heterocycylyl in R1, R2 or R3 are optionally substituted p is independently 1 or 2; n is 3, 4, 5 or 6; denotes an optional double bond; Rq is H or when L is CRz, Rq can also be C1-C6alkyl; Ry and Ry′ are independently C1-C6alkyl; L is N or CRz; Rz is H or forms a double bond with the asterisked carbon; W is —CH2—, —O—, —OC(═O)NH—, —OC(═O)—, —S—, —NH—, —NRa, —NHS(═O)2—, —NHC(=0)NH— or —NHC(═O)—, —NHC(═S)NH— or a bond; R8 is an optionally substituted ring system containing 1 or 2 saturated, partially saturated or unsaturated carbo or heterocyclic rings have utility in the inhibition of NS-3 serine proteases, such as flavivirus infections.
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Page/Page column 58
(2009/02/11)
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- PYRIMIDINE SUBSTITUTED MACROCYCLIC HCV INHIBITORS
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Compounds of the Formula (I) including a stereoisomer thereof, or an N-oxide, a pharmaceutically acceptable addition salt, or a pharmaceutically acceptable addition solvate thereof; useful as HCV inhibitors; processes for preparing these compounds as well as pharmaceutical compositions comprising these compounds as active ingredient.
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- Discovery of novel potent and selective dipeptide hepatitis C virus NS3/4A serine protease inhibitors
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Starting from the previously reported HCV NS3/4A protease inhibitor BILN 2061 (1), we have used a fast-follower approach to identify a novel series of HCV NS3/4A protease inhibitors in which (i) the P3 amino moiety and its capping group have been truncated, (ii) a sulfonamide is introduced in the P1 cyclopropyl amino acid, (iii) the position 8 of the quinoline is substituted with a methyl or halo group, and (iv) the ring size of the macrocycle has been reduced to 14 atoms. SAR analysis performed with a limited set of compounds led to the identification of N-{17-[8-chloro-2-(4-isopropylthiazol-2-yl)-7-methoxyquinolin-4-yloxy]-2,14-dioxo-3,15-diazatricyclo [13.3.0.0 [Bartenschlager, R.; Lohmann, V. J. Gen. Virol. 2000, 81, 1631; Vincent Soriano, Antonio Madejon, Eugenia Vispo, Pablo Labarga, Javier Garcia-Samaniego, Luz Martin-Carbonero, Julie Sheldon, Marcelle Bottecchia, Paula Tuma, Pablo Barreiro Expert Opin. Emerg. Drugs, 2008, 13, 1-19]]octadec-7-ene-4-carbonyl}(1-methylcyclopropyl)(1-methylcyclopropyl)sulfonamide 19l an extremely potent (Ki = 0.20 nM, EC50 = 3.7 nM), selective, and orally bioavailable dipeptide NS3/4A protease inhibitor, which has features attractive for further preclinical development.
- Raboisson, Pierre,Lin, Tse-I,Kock, Herman de,Vendeville, Sandrine,Vreken, Wim Van de,McGowan, David,Tahri, Abdellah,Hu, Lili,Lenz, Oliver,Delouvroy, Frederic,Surleraux, Dominique,Wigerinck, Piet,Nilsson, Magnus,Rosenquist, Asa,Samuelsson, Bertil,Simmen, Kenneth
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scheme or table
p. 5095 - 5100
(2009/06/18)
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- MACROCYCLIC INHIBITORS OF HEPATITIS C VIRUS
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Inhibitors of HCV replication of formula (I) and the N-oxides, salts, and stereoisomers, wherein each dashed line represents an optional double bond; X is N, CH and where X bears a double bond it is C; R1 is -OR7, -NH-SO2R8; R2 is hydrogen, and where X is C or CH, R2 may also be C1-6alkyl; R3 is hydrogen, C1-6alkyl, C1-6alkoxyC1-6alkyl, C3-7cycloalkyl; R4 is aryl or Het; n is 3, 4, 5, or 6; R5 is halo, C1-6alkyl, hydroxy, C1-6alkoxy, phenyl, or Het; R6 is C1-6alkoxy, or dimethylamino; R7 is hydrogen; aryl; Het; C3-7cycloalkyl optionally substituted with C1-6alkyl; or C1-6alkyl optionally substituted with C3-7cycloalkyl, aryl or with Het; R8 is aryl; Het; C3-7cycloalkyl optionally substituted with C1-6alkyl; or C1-6alkyl optionally substituted with C3-7cycloalkyl, aryl or with Het; aryl is phenyl optionally substituted with one, two or three substituents; Het is a 5 or 6 membered saturated, partially unsaturated or completely unsaturated heterocyclic ring containing 1 to 4 heteroatoms selected from nitrogen, oxygen and sulfur, and being optionally substituted with one, two or three substituents ; pharmaceutical compositions containing compounds (I) and processes for preparing compounds (I). Bioavailable combinations of the inhibitors of HCV of formula (I) with ritonavir are also provided.
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Page/Page column 123
(2008/06/13)
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- MACROCYCLIC INHIBITORS OF HEPATITIS C VIRUS
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Inhibitors of HCV replication of formula (I) and the N-oxides, salts, and stereoisomers thereof, wherein X is N, CH and where X bears a double bond it is C; R1 is -OR5, -NH-SO2R6; R2 is hydrogen, and where X is C or CH, R2 may also be C1-6alkyl; R3 is hydrogen, C1-6alkyl, C1-6alkoxyC1-6alkyl, or C3-7cycloalkyl; R4 is isoquinolinyl optionally substituted with one, two or three substituents each independently selected from C1-6alkyl, C1-6alkoxy, hydroxy, halo, polyhalo- C1-6alkyl, polyhaloC1-6alkoxy, amino, mono- or diC1-6alkylamino, mono- or DiC1-6alkylaminocarbonyl, C1-6alkylcarbonyl-amino, aryl, and Het; n is 3, 4, 5, or 6; each dashed line (represented by ) represents an optional double bond; R5 is hydrogen; aryl; Het; C3-7cycloalkyl optionally substituted with C1-6alkyl; or C1-6alkyl optionally substituted with C3-7cycloalkyl, aryl or with Het; R6 is aryl; Het; C3-7cycloalkyl optionally substituted with C1-6alkyl; or C1-6alkyl optionally substituted with C3-7cycloalkyl, aryl or with Het; each aryl is phenyl optionally substituted with one, two or three substituents; and each Het is a 5 or 6 membered saturated, partially unsaturated or completely unsaturated heterocyclic ring containing 1 to 4 heteroatoms each independently selected from nitrogen, oxygen and sulfur, and being optionally substituted with one, two or three substituents; pharmaceutical compositions containing compounds (I) and processes for preparing compounds (I). Bioavailable combinations of the inhibitors of HCV of formula (I) with ritonavir are also provided.
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Page/Page column 100
(2008/06/13)
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- MACROCYLIC INHIBITORS OF HEPATITIS C VIRUS
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Inhibitors of HCV of formula (I), and the N-oxides, salts, and stereochemically isomeric forms thereof, wherein R1 is aryl or a saturated, a partially unsaturated or completely unsaturated 5 or 6 membered monocyclic or 8 to 12 membered bicyclic heterocyclic ring system containing one nitrogen, and optionally one to three oxygen, sulfur or nitrogen, wherein said ring system may be optionally substituted; L is a direct bond, -O-. -O-C1-4alkanediyl-, -O-CO-, -O-C(=O)-NR5a- or -O-C(=O)-NR5a-C1-4alkanediyl-; R2 is hydrogen, -OR6, -C(O)OR6, -C(=O)R7, -C(=O)NR5aR5b, -C(=O)NHR5c, -NR5aR5b, -NHR5c, -NHSOpNR5aR5b, -NR5aSOpR8, or -B(OR6)2; R3 and R4 are hydrogen or C1-6alkyl; or R3 and R4 taken together may form a C3-7cycloalkyl ring; n is 3, 4, 5, or 6; p is 1 or 2; aryl is phenyl, naphthyl, indanyl, or 1,2,3,4-tetrahydronaphthyl, each of which may be optionally substituted Het is a 5 or 6 membered saturated, partially unsaturated or completely unsaturated heterocyclic ring containing 1 to 4 heteroatoms each independently selected from nitrogen, oxygen and sulfur, being optionally condensed with a benzene ring, and wherein the group Het as a whole may be optionally substituted ; pharmaceutical compositions containing compounds (I) and processes for preparing compounds (I). Bioavailable combinations of the inhibitors of HCV of formula (I) with ritonavir are also provided.
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Page/Page column 74-75
(2010/11/25)
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