Abstract: This invention relates to pyrimidine derivatives, processes for their preparation, pharmaceutical compositions, and their use in treating viral infections such as HCV or HBV.

Abstract: The present invention is directed to novel 2-amino-3,4-dihydro-quinazoline derivatives, pharmaceutical compositions containing them and their use in the treatment of Alzheimer's disease (AD) and related disorders. The compounds of the invention are inhibitors of ?-secretase, also known as ?-site cleaving enzyme and BACE.

Abstract: The present invention is directed to novel 2-amino-3,4-dihydro-quinazoline derivatives, pharmaceutical compositions containing them and their use in the treatment of Alzheimer's disease (AD) and related disorders. The compounds of the invention are inhibitors of ?-secretase, also known as ?-site cleaving enzyme and BACE.

Abstract: The present invention is related to novel compounds of formula (I) having equilibrative nucleoside transporter ENT1 inhibiting properties, pharmaceutical compositions comprising these compounds, chemical processes for preparing these compounds and their use in the treatment of diseases linked to the inhibition of ENT1 receptors in animals, in particular humans.

Abstract: The present invention is concerned with novel substituted triazole and imidazole derivatives of Formula (I) wherein R1, R2, A1, A2, A3, A4, X, and Het1 have the meaning defined in the claims. The compounds according to the present invention are useful as gamma secretase modulators. The invention further relates to processes for preparing such novel compounds, pharmaceutical compositions comprising said compounds as an active ingredient as well as the use of said compounds as a medicament.

Abstract: The present invention is concerned with novel substituted indazole and aza-indazole derivatives of Formula (I) wherein R1, R2, R3, R4, Y, A1, A2, A3, A4, X1, X2, X3 and Het1 have the meaning defined in the claims. The compounds according to the present invention are useful as gamma secretase modulators. The invention further relates to processes for preparing such novel compounds, pharmaceutical compositions comprising said compounds as an active ingredient as well as the use of said compounds as a medicament.

Abstract: The present invention is concerned with substituted bicyclic heterocyclic compounds of Formula (I) wherein Het1, Het2, A1, A2, A3 and A4 have the meaning defined in the claims. The compounds according to the present invention are useful as gamma secretase modulators. The invention further relates to processes for preparing such novel compounds, pharmaceutical compositions comprising said compounds as an active ingredient as well as the use of said compounds as a medicament.

Abstract: The present invention is related to novel compounds of formula (I) having equilibrative nucleoside transporter ENT1 inhibiting properties, pharmaceutical compositions comprising these compounds, chemical processes for preparing these compounds and their use in the treatment of diseases linked to the inhibition of ENT1 receptors in animals, in particular humans.

Abstract: The present invention concerns the compounds of formula the N-oxides, the pharmaceutically acceptable addition salts and the stereochemically isomeric forms thereof, wherein each R1 is independently hydrogen, halogen, C1-6alkyl, nitro, hydroxy or C1-4alkyloxy; Alk is C1-6alkanediyl; n is 1 or 2; p is 0, 1 or 2; D is an optionally substituted mono-, bi- or tricyclic nitrogen containing heterocycle having central &agr;2-adrenoceptor antagonist activity. It further relates to their preparation, compositions comprising them and their use as a medicine.

Abstract: The present invention concerns compounds of formula (I) the N-oxide forms, the pharmaceutically acceptable addition salts and the stereochemically isomeric forms thereof, wherein Alk is C5-12alkanediyl; n is 1 or 2; p is 1 and q is 2; or p is 2 and q is 1; X is —O—, —S—, —S(═O)—, —S(═O)2— or NR2; each R1 is independently hydrogen, halogen, C1-6alkyl, nitro, hydroxy or C1-4alkyloxy; R2 is hydrogen, C1-6alkyl, aryl or C1-6alkyl substituted with aryl; aryl is phenyl or phenyl substituted with a halogen or C1-6alkyl; D is an optionally substituted benzophenone or 3-benzisoxazolyl; having central &agr;2-adrenoceptor antagonist activity. It further relates to their preparation, pharmaceutical use and compositions.

Abstract: The present invention concerns the compounds of formula 1

Abstract: The present invention concerns the compounds of formula the N-oxides, the pharmaceutically acceptable addition salts and the stereochemically isomeric forms thereof, wherein each R1 is independently hydrogen, halogen, C1-6alkyl, nitro, hydroxy or C1-4alkyloxy; Alk is C1-6alkanediyl; n is 1 or 2; p is 0, 1 or 2; D is an optionally substituted mono-, bi- or tricyclic nitrogen containing heterocycle having central &agr;2-adrenoceptor antagonist activity. It further relates to their preparation, compositions comprising them and their use as a medicine.

Abstract: The present invention concerns the compounds of formula the N-oxide forms, the pharmaceutically acceptable acid addition salts and stereochemically isomeric forms thereof, wherein X is O or S; n is 2, 3, 4 or 5; R1 is hydrogen, C1-6alkyl, C1-6alkyloxy or halo; R2 is hydrogen, C1-6alkyl, phenyl, phenylC1-6alkyl or phenylcarbonyl; R3 and R4 each independently are selected from hydrogen, halo, nitro, C1-6alkyl, C1-6alkyloxy, haloC1-6alkyl, aminosulfonyl, mono- or di(C1-4alkyl)aminosulfonyl; or R3 and R4 may also be taken together to form a bivalent radical of formula —CH═CH—CH═CH—; it further relates to processes for their preparation, compositions comprising them as well as their use as a medicine; compounds of formula (I) containing a radioactive isotope; a process of marking dopamine D4 receptor sites; and a process for imaging an organ are disclosed.

Abstract: The present invention concerns the compounds of formula ##STR1## the N-oxide forms, the pharmaceutically acceptable acid addition salts and stereochemically isomeric forms thereof, wherein X is O or S; n is 2, 3, 4 or 5; R.sup.1 is hydrogen, C.sub.1-6 alkyl, C.sub.1-6 alkyloxy or halo; R.sup.2 is hydrogen, C.sub.1-6 alkyl, phenyl, phenylC.sub.1-6 alkyl or phenylcarbonyl; R.sup.3 and R.sup.4 each independently are selected from hydrogen, halo, nitro, C.sub.1-6 alkyl, C.sub.1-6 alkyloxy, haloC.sub.1-6 alkyl, aminosulfonyl, mono- or di(C.sub.1-4 alkyl)aminosulfonyl; or R.sup.3 and R.sup.4 may also be taken together to form a bivalent radical of formula --CH.dbd.CH--CH.dbd.CH--; it further relates to processes for their preparation, compositions comprising them as well as their use as a medicine; compounds of formula (I) containing a radioactive isotope; a process of marking dopamine D.sub.4 receptor sites; and a process for imaging an organ are disclosed.