Abstract: The present invention concerns compounds of formula. In a preferable embodiment, X represents O; R1 represents C1-6alkyl; cycloC3-12alkyl or (cycloC3-12alkyl)C1-6alkyl, wherein one or more hydrogen atoms in a C1-6alkyl-moiety or in a cycloC3-12alkyl-moiety optionally may be replaced by C1-6alkyloxy, aryl, halo or thienyl; R2 represents hydrogen; halo; C1-6alkyl or amino; R3 and R4 each independently represent hydrogen or C1-6alkyl; or R2 and R3 may be taken together to form —R2-R3-, which represents a bivalent radical of formula -Z4-CH2-CH2-CH2- or -Z4-CH2-CH2- with Z4 being O or NR11 wherein R11 is C1-6alkyl; and wherein each bivalent radical is optionally substituted with C1-6alkyl; or R3 and R4 may be taken together to form a bivalent radical of formula —CH2-CH2-CH2-CH2-; R5 represents hydrogen; Y represents O; and aryl represents phenyl optionally substituted with halo.

Abstract: The present invention is concerned with compounds of formula 1

Abstract: The present invention is concerned with compounds of formula the N-oxides, the pharmaceutically acceptable addition salts and the stereochemically isomeric forms thereof, wherein R1 is hydrogen, hydroxy, C1-6alkyl or aryl; R2 is hydrogen; optionally substituted C1-12alkyl; C3-7cycloalkyl; C2-8alkenyl, optionally substituted pyrrolidinyl or aryl; R3 is hydrogen, optionally substituted C1-6alkyl or aryl; Het is an optionally substituted unsaturated heterocycle selected from imidazolyl, triazolyl, tetrazolyl and pyridinyl; is an optionally substituted unsaturated mono- or bicyclic heterocycle; and aryl is optionally substituted phenyl. The present invention also relates to processes for their preparation and compositions comprising said new compounds, as well as their use as a medicine.

Abstract: The present invention is concerned with compounds of formula ##STR1## the N-oxides, the pharmaceutically acceptable addition salts and the stereochemically isomeric forms thereof, wherein R.sup.1 is hydrogen, hydroxy, C.sub.1-6 alkyl or aryl; R.sup.2 is hydrogen; optionally substituted C.sub.1-12 alkyl; C.sub.3-7 cycloalkyl; C.sub.2-8 alkenyl, optionally substituted pyrrolidinyl or aryl; R.sup.3 is hydrogen, optionally substituted C.sub.1-6 alkyl or aryl; Het is an optionally substituted unsaturated heterocycle selected from imidazolyl, triazolyl, tetrazolyl and pyridinyl; ##STR2## is an optionally substituted unsaturated mono- or bicyclic heterocycle; and aryl is optionally substituted phenyl. The present invention also relates to processes for their preparation and compositions comprising said new compounds, as well as their use as a medicine.

Abstract: This invention is concerned with the compounds of formula ##STR1## the pharmaceutically acceptable acid addition salts and the stereochemically isomeric forms thereof,wherein: R.sup.1 is hydrogen, amino or C.sub.1-4 alkyl; R.sup.2 is hydrogen, halo or C.sub.1-4 alkyl; R.sup.3 is hydrogen, halo or C.sub.1-4 alkyl; Y is 0 or S, and --X.sup.1 .dbd.X.sup.2 --is a bivalent radical having the formula --N.dbd.CH--(a-1) or --CH.dbd.N--(a-2);compositions containing the same, and processes of preparing these compounds. It further relates to their use as a medicine, in particular their use as a medicine to treat keratinization disorders.