Abstract: The present invention relates to tricyclic inhibitors of beta-secretase having the structure shown in Formula (I) and (II) and the tautomers and the stereoisomeric forms thereof, wherein the radicals are as defined in the specification. The invention is also directed to pharmaceutical compositions comprising such compounds, to processes for preparing such compounds and compositions, and to the use of such compounds and compositions for the prevention and treatment of disorders in which beta-secretase is involved, such as Alzheimer's disease (AD), mild cognitive impairment, senility, dementia, dementia with Lewy bodies, Down's syndrome, dementia associated with stroke, dementia associated with Parkinson's disease, dementia associated with beta-amyloid, age-related macular degeneration, type 2 diabetes and other metabolic disorders.

Abstract: The present invention concerns the compounds of formula the N-oxide forms, the pharmaceutically acceptable addition salts and the stereochemically isomeric forms thereof, wherein Alk is C1-6alkanediyl; n is 1 or 2; X1 is —O—, —S—, —S(═O)— or —S(═O)2—; each R1 is independently hydrogen, halogen, C1-6alkyl, nitro, hydroxy or C1-4alkyloxy; D is an optionally substituted mono, bi- or tricyclic nitrogen containing heterocycle, a 2H-benzopyranone, a benzamide, a benzophenone or a phenoxyphenyl having central &agr;2-adrenoceptor antagonist activity. It further relates to their preparation, pharmaceutical use and compositions.

Abstract: The present invention concerns novel (2-morpholinylmethyl)benzamide derivatives having the formula ##STR1## the N-oxide forms, the pharmaceutically acceptable addition salts and the stereochemically isomeric forms thereof, wherein R.sup.1 is C.sub.1-6 alkyl, C.sub.2-6 alkenyl or C.sub.2-6 alkynyl; R.sup.2 is hydrogen, halo or C.sub.1-6 alkylsulfonylamino; R.sup.3 is hydrogen or C.sub.1-6 alkyl; L is a radical of formula R.sup.4 --C(.dbd.O)--Alk-- (a); R.sup.5 --C(.dbd.O)--N(R.sup.6)--Alk-- (b); or R.sup.7 --C(.dbd.O)--O--Alk-- (c); wherein each Alk is independently C.sub.1-12 alkanediyl; R.sup.4 is hydrogen, hydroxy, C.sub.1-6 alkyl, C.sub.1-6 alkyloxy, amino, mono- or di(C.sub.1-6 alkyl)amino or an optionally substituted heterocyclic ring; R.sup.5 and R.sup.7 each independently are hydrogen, C.sub.1-6 alkyl, C.sub.1-6 alkyloxy, amino, mono- or di(C.sub.1-6 alkyl)amino or an optionally substituted heterocyclic ring; R.sup.6 is hydrogen or C.sub.