Abstract: The present invention relates to 5H-pyrazolo[1,5-c][1,3]benzoxazin-5-yl)phenyl methanone derivatives as inhibitors of the viral replication of the HIV virus, processes for their preparation as well as pharmaceutical compositions, their use as medicines, and diagnostic kits comprising them. The present invention also concerns combinations of the present HIV inhibitors with other anti-retroviral agents. It further relates to their use in assays as reference compounds or as reagents. The compounds of the present invention are useful for preventing or treating infection by HIV and for treating AIDS.

Abstract: 1-heterocyclyl-1,5-dihydro-pyrido[3,2-b]indol-2-ones of formula (I): the N-oxides, salts, stereoisomeric forms, racemic mixtures, prodrugs, esters and metabolites thereof, wherein n is 1, 2 or 3; R1 is hydrogen, cyano, halo, substituted carbonyl, methanimidamidyl, N-hydroxy-methanimidamidyl, mono- or di(C1-4alkyl)methanimidamidyl, Het1 or Het2; X is NR2, O, S, SO, SO2; R2 is hydrogen, C1-10alkyl, C2-10alkenyl, C3-7cycloalkyl, which are optionally substituted; R2 is aryl substituted with —COOR4; or R2 is: —CpH2p—CH(OR14)—CqH2q—R15 (b-3); —CH2—CH2—(O—CH2—CH2)m—OR14 (b-4); —CH2—CH2—(O—CH2—CH2)m—NR5aR5b (b-5); -a1=a2-a3=a4- is —CH?CH—CH?CH—; —N?CH—CH?CH—; —CH?N—CH?CH—; —CH?CH—N?CH—; —CH?CH—CH?N—; wherein hydrogen atoms in (c-1)-(c-5) may be replaced by certain radicals; R3 is a monocyclic or bicyclic aromatic heterocyclic ring system that can be substituted.

Abstract: Compounds of formula (I) the N-oxides, salts, stereoisomeric forms, prodrugs, esters and metabolites thereof, wherein X is NR2, O, S, SO, SO2; R1 is hydrogen, cyano, halo, a carbonyl derivative, methanimidamidyl, N-hydroxy-methanimidamidyl, mono- or di(C1-4alkyl)-methanimidamidyl, Het1 or Het2; n is 1, 2 or 3; R2 is (i) aryl substituted with a radical —COOR4; (ii) C1-10alkyl, C2-10alkenyl, C3-7cycloalkyl, substituted with aryl which is substituted with a radical —COOR4; (iii) C1-10alkyl, C2-10alkenyl, C3-7cycloalkyl, substituted with —NR5a—C(?NR5b)—NR5cR5d, —O—NR5a—C(?NR5b)—NR5cR5d, -sulfonyl-R6, —NR7R8, —NR9R10, a radical (a-1), (a-2), (a-3), (a-4), (a-5); or (iv) a radical of formula: (a-6), (b-2), —CpH2p—CH(OR14)—CqH2q—R15; —CH2—CH2—(O—CH2—CH2)m—OR14; —CH2—CH2—(O—CH2—CH2)m—NR17aR17b; R3 is nitro, cyano, amino, halo, hydroxy, C1-4alkyloxy, a carbonyl derivative, methanimidamidyl, mono- or di(C1-4alkyl)methanimidamidyl, N-hydroxy-methanimidamidyl or Het1.

Abstract: 4-substituted 1,5-dihydro-pyrido[3,2-b]indol-2-ones of formula (I): the N-oxides, salts, stereoisomeric forms, racemic mixtures, prodrugs, esters and metabolites thereof, wherein n is 1, 2 or 3; R1 is hydrogen, cyano, halo, substituted carbonyl, methanimidamidyl, N-hydroxy-methanimidamidyl, mono- or di(C1-4alkyl)methanimidamidyl, Het1 or Het2; X is NR2, O, S, SO, SO2; R2 is hydrogen, C1-10alkyl, C2-10alkenyl, C3-7cycloalkyl, which are optionally substituted; R2 is aryl substituted with —COOR4; or R2 is: —CpH2p—CH(OR14)—CqH2q—R15 (b-3); —CH2—CH2—(O—CH2—CH2)m—OR14 (b-4); —CH2—CH2—(O—CH2—CH2)m—NR5aR5b (b-5); -a1=a2-a3=a4- is —CH?CH—CH?CH—; —N?CH—CH?CH—; —CH?N—CH?CH—; —CH?CH—N?CH—; —CH?CH—CH?N—; wherein hydrogen atoms in (c-1)-(c-5) may be replaced by certain radicals; R3 is optionally substituted phenyl or a monocyclic or bicyclic aromatic heterocyclic ring system that can be substituted; R21 is halo, hydroxy, amino, carboxyl, C1-6alkyl, C3-7cycloalkyl, arylC1-6alkyl, formyl, C1-6alkylcarbonyl, C

Abstract: The present invention concerns the compounds having the formula N-oxides, salts, stereoisomeric forms, racemic mixtures, prodrugs, esters and metabolites thereof, wherein R1 and R8 each are H, optionally substituted C1-6alkyl, C2-6alkenyl, C3-7cycloalkyl, aryl, Het1, Het2; R1 may also be a radical of formula (R11aR11b)NC(R10aR10b)CR9—; t is 0, 1 or 2; R2 is H or C1-6alkyl; L is —C(?O)—, —O—C(?O)—, —NR8—C(?O)—, —O—C1-6alkanediyl-C(?O)—, —NR8—C1-6alkanediyl-C(?O)—, —S(?O)2—, —O—S(?O)2—, —NR8—S(?O)2; R3 is C1-6alkyl, aryl, C3-7cycloalkyl, C3-7cycloalkylC1-4alkyl, or arylC1-4alkyl; R4 is H, C1-4alkylOC(?O), carboxyl, aminoC(?O), mono- or di(C1-4alkyl)aminoC(?O), C3-7cycloalkyl, C2-6alkenyl, C2-6alkynyl or optionally substituted C1-6alkyl; R5a and R5b is C2-6alkenyl, C2-6alkynyl, C3-7cycloalkyl or C1-6alkyl, optionally substituted on one or more atoms; R5a and R5b may also be hydrogen, aryl, Het1, Het2; R6 is hydrogen or C1-6alkyl optionally substituted on one ore more carbon atoms.

Abstract: The present invention relates to the use of 2-amino-benzothiazoles, having the formula wherein R1 is hexahydrofuro[2,3-b]furanyl, tetrahydrofuranyl, oxazolyl, thiazolyl, pyridinyl, or phenyl optionally substituted with one or more substituents independently selected from C1-6alkyl, hydroxy, amino, halogen, aminoC1-4alkyl and mono- or di(C1-4alkyl)amino; R2 is hydrogen or C1-6alkyl; L is a direct bond, —O—, C1-6alkanediyl-O— or —O—C1-6alkanediyl; R3 is phenylC1-4alkyl; R4 is C1-6alkyl; R5 is hydrogen or C1-6alkyl; R6 is hydrogen or C1-6alkyl; in the manufacture of a medicament useful for inhibiting mutant HIV protease in a mammal infected with said mutant HIV protease. It also relates to novel compounds of formula (I).

Abstract: The present invention relates to methods for determining the influence of human plasma or serum protein binding on antiretroviral activity at physiologically achieved conditions, by using specific virus strains in a cell-based antiviral assay.

Abstract: The present invention concerns compounds of formula (I) a stereochemically isomeric form thereof, an N-oxide form thereof or a pharmaceutically acceptable acid addition salt thereof, wherein -Z1-Z2- is a bivalent radical; R1, R2 and R3 are each independently selected from hydrogen, C1-6alkyl, hydroxy, halo and the like; or when R1 and R2 are on adjacent carbon atoms, R1 and R2 taken together may form a bivalent radical of formula; Alk is optionally substituted C1-6alkanediyl; the bivalent radical is a substituted piperidinyl, an optionally substituted pyrrolidinyl, homopiperidinyl, piperazinyl or tropyl; R5 is a radical of formula wherein n is 1 or 2; p1 is 0, and p2 is 1 or 2; or p1 is 1 or 2, and p2 is 0; X is oxygen, sulfur or ?NR9; Y is oxygen or sulfur; R7 is hydrogen, C1-6alkyl, C3-6cycloalkyl, phenyl or phenylmethyl; R8 is C1-6alkyl, C3-6cycloalkyl phenyl or phenylmethyl; R9 is cyano, C1-6alkyl, C3-6cyclo-alkyl, C1-6alkyloxycarbonyl or aminocarbonyl; R10 is hydrogen or C1-6alkyl; and Q is