Abstract:
The present invention is concerned with 3-aryl-isoxazole-4-carbonyl-benzofuran derivatives of formula (I) wherein R1 is hydrogen or halogen; R2 is hydrogen, halogen, hydroxy, lower alkoxy, OCF3, -OCH2-R, R3 is hydrogen or lower alkoxy; or R2 and R3 form together with the carbon atom to which they are attached a ring with -CH=CH-CH=-CH-; R is aryl or heteroaryl, optionally substituted by halogen or lower alkyl, or is C(O)NH-lower alkyl, or is -C(O)-heteroaryl, wherein the heteroaryl group is optionally substituted by lower alkyl or phenyl, and with their pharmaceutically acceptable acid addition salts. It has been found that this class of compounds show high affinity and selectivity for GABA A cc5 receptor binding sites and might be useful as cognitive enhancer or for the treatment of cognitive disorders like Alzheimer's disease.
Abstract:
The present invention is concerned with aryl-isoxazol-4-yl-imidazole derivatives of formula (I), wherein R 1 to R 3 are each independently hydrogen or halogen; R 4 is hydrogen, lower alkyl, cycloalkyl, -(CH 2 ) n -O-lower alkyl or lower alkyl substituted by hydroxy; R 5 is -(CH 2 ) m -aryl or -(CH 2 ) m -heteroaryl which are optionally substituted by one or more substituents selected from the group consisting of halogen, cyano, nitro, lower alkyl, lower alkoxy, lower alkylsulfanyl, lower alkyl substituted by halogen, -C(O)-lower alkyl, -C(O)-O-lower alkyl, -NH-C(O)-O-lower alkyl or -C(O)-NH-R', wherein R' is lower alkynyl or lower alkyl substituted by halogen, or is -(CH 2 ) n -cycloalkyl, -(CH 2 ) n -heterocyclyl, -(CH 2 ) n -heteroaryl or -(CH 2 ) n -aryl, optionally substituted by halogen; R 6 is hydrogen, -C(O)H, -(CH 2 ) n -O-lower alkyl, -C(O)O-lower alkyl, lower alkyl substituted by hydroxy or halogen, or is cycloalkyl, aryl, or is -(CH 2 ) n -O-CH 2 -aryl, optionally substituted by halogen or lower alkyl, or is -(CH 2 ) n -O-CH 2 -heteroaryl, optionally substituted by halogen, lower alkyl or lower alkyl substituted by halogen, or is -(CH 2 ) n -NH-(CH 2 ) o -heterocyclyl; n is 0, 1, 2 or 3 m is 0 or 1; o is 1, 2 or 3; as well as with pharmaceutically acceptable acid addition salts thereof. It has been found that this class of compounds show high affinity and selectivity for GABA A a5 receptor binding sites and might be useful as cognitive enhancer or for the treatment of cognitive disorders like Alzheimer's disease.
Abstract:
The invention relates to compounds of formula (I). Hetaryl I is a five or six membered heteroaryl group, containing 1 to 3 heteroatoms, selected from O, S or N; hetaryl II is a five or six membered heteroaryl group, containing 1 to 3 heteroatoms, selected from O, S or N, or is a two membered ring system containing 1 to 4 heteroatoms selected from S, O or N, wherein at least one ring is aromatic in nature; R1 is lower alkyl, lower alkoxy, lower alkyl substituted by halogen, or halogen; R2 is halogen, lower alkyl, lower alkoxy, hydroxy, lower alkyl substituted by halogen, lower alkyl substituted by hydroxy or benzo[1,3]dioxolyl, or is -(CHR)p-phenyl, optionally substituted by halogen, lower alkyl, lower alkoxy, S(O)2-lower alkyl, cyano, nitro, lower alkoxy substituted by halogen, dimethylamino, -(CH2)P-NHC(O)O-Iower alkyl, or lower alkyl substituted by halogen, and R is hydrogen, halogen, hydroxy or lower alkoxy, or is cycloalkenyl or cycloalkyl, optionally substituted by hydroxy or lower alkyl substituted by halogen, or is a five or six membered heteroaryl group, containing 1 to 3 heteroatoms, selected from O, S or N, which is optionally substituted by halogen, lower alkyl, lower alkoxy or dimethylamino, or is O-phenyl, optionally substituted by halogen, or is heterocycloalkyl, optionally substituted by halogen, hydroxy, lower alkyl substituted by halogen or C(O)O-lower alkyl; R3 is hydrogen, lower alkyl, cyano or phenyl; R4 is lower alkoxy, lower alkyl or halogen; p is 0 or 1; n is 0, 1 or 2; if n is 2 then R4 may be the same or different; m is 0, 1 or 2; if m is 2 then R1 may be the same or different; o is 0, 1, 2 or 3, if o is 2 or 3 then R2 may be the same or different; or to pharmaceutically active acid addition salts thereof. The compounds of formula (I) are modulators for amyloid beta and thus, they may be useful for the treatment or prevention of a disease associated with the deposition of ß-amyloid in the brain, in particular Alzheimer's disease, and other diseases such as cerebral amyloid angiopathy, hereditary cerebral hemorrhage with amyloidosis, Dutch-type (HCHWA-D), multi-infarct dementia, dementia pugilistica and Down syndrome.
Abstract:
Abstract The present invention relates to a process for the preparation of a compound of formula (I) R2 0 0 i ¨) /. N OH N Ri (I) which is useful as an intermediate in the preparation of active pharmaceutical compounds. Date Recue/Date Received 2020-06-18
Abstract:
La invención proporciona compuestos novedosos que tienen la fórmula general (I) en donde R1, R2, R3, R4, R5, R6, X, Y y Z es tal como se describe en el presente documento, composiciones que incluye los compuestos y métodos de uso de los compuestos.The invention provides novel compounds having the general formula (I) wherein R1, R2, R3, R4, R5, R6, X, Y and Z are as described herein, compositions including the compounds and methods of using the compounds.
Abstract:
La invención proporciona compuestos novedosos que tienen la fórmula general (I), en donde R1, R2, R3, R4, R5, R6, X, Y y Z es tal como se describe en el presente documento, composiciones que incluye los compuestos y métodos de uso de los compuestos.
Abstract:
THE PRESENT INVENTION RELATES TO A PROCESS FOR THE PREPARATION OF A COMPOUND OF FORMULA (I) WHEREIN R1 AND R2 ARE AS DEFINED HEREIN, WHICH IS USEFUL AS AN INTERMEDIATE IN THE PREPARATION OF ACTIVE PHARMACEUTICAL COMPOUNDS. (NO SUITABLE