Abstract:
PROBLEM TO BE SOLVED: To provide a new quinolin-4-yl derivative. SOLUTION: A compound of formula (I) [R1 is H, a lower alkyl, a lower alkoxy, hydroxy, amino, nitro or the like; R2 is phenyl (if necessary, substituted by a lower alkyl, a lower alkoxy, a halogen, trifluoromethyl, amino, a lower alkyl-amino or a di-lower alkyl-amino), 2, 3-dihydro-benzofuran-5-yl, chroman-6- yl, naphthalen-2-yl, indan-5-yl or the like; R3 and R4 are each mutually independently H or a lower alkyl; R5 is H, a lower alkyl, CH2OH or the like; X is NR8 or O; or X and R5 together form >N-(CH2)2; X and R3 together form >N(CH2)3; R8 is H or a lower alkyl].
Abstract:
PROBLEM TO BE SOLVED: To use a specific compound for producing a medicine useful for treating and preventing diseases caused by excessive activation of MMDA receptor subtype. SOLUTION: A compound of formula I [Ar1 and Ar2 are each a (substituted) phenyl, naphthyl or tetrahydronaphthyl; X is C, CH or C(OH)N; Y is CH2, CH or O; Z is CH2, CH(CH3) or the like; R1 is H, a lower alkyl or acetyl; A is C=O, (CHR2)n (R2 is H, a lower alkyl or the like; (n) is 0-4); B is (CH2)n, O, CH(CH) or the like] or its pharmaceutically acceptable acid addition salt, preferably trans-4-[4-(3-phenyl-propylamino)cyclohexyl]-phenol, etc., is used. The compound is obtained by heating a compound of formula II and a compound of formula III in a solvent such as toluene, etc., by a Dean and Stark apparatus.
Abstract:
PROBLEM TO BE SOLVED: To obtain a new N-methyl-D-aspartic acid (NMDA) receptor subtype specific blocker. SOLUTION: This compound is represented by the formula (I) [wherein R1 is hydrogen, a lower alkyl, a lower alkoxy, hydroxyl, amino, nitro, cyano, a lower alkylamino, a di-lower alkylamino or a halogen; R2 is hydrogen, a lower alkyl, amino, pyrrolidin-3-ol, pyrrolidin-2-ylmethanol or NHCH2CHROH; R3 is hydrogen or a halogen; R is hydrogen, a lower alkyl or CH2OH; and n is 1 or 2] and its pharmaceutically acceptable acid addition salt.
Abstract:
PROBLEM TO BE SOLVED: To obtain a new compound useful for treatment of acute neurodegeneration caused by cerebral stroke or the like, chronic neurodegeneration such as Alzheimer's disease, Parkinson's disease and Huntington's disease, schizophrenia, anxiety, depression or the like. SOLUTION: This new compound is the one of formula I or II [R1 and R2 are each H, a lower alkoxy or the like; R3 and R4 are each H, benzyloxy or the like; R5 is H or a lower alkyl; X and Y are each CH(OH) or (CH2)m; (m), (n) and (p) are each 1 or 2], e.g. 4-[(RS)-hydroxy-[(2SR,5RS)-5-phenethyl- pyrrolidin-2-yl]-methyl]-phenol. The compound of formula II is obtained by cyclizing a compound of formula III by the reaction with a compound for providing an oxazole ring.
Abstract:
PROBLEM TO BE SOLVED: To obtain a novel compound useful for treating diseases caused by excessive activation of N-methyl-D-aspartate acceptor subtype, including neurodegeneration of acute morphology caused by cerebral hemorrhage, or the like, and other diseases, e.g. schizophrenia. SOLUTION: This compound is represented by formula I R1 to R4 are each H, CF3, a lower alkyl, a halogen, phenyl, or the like, wherein R2 and R3 may be combined with each other to form (CH2)3, or the like; X is N, CH, or the like; Y is N, or the like, wherein at least one of X and Y contains N; and R5 is represented by formula II [R6 and R7 are each H, a lower alkyl, or the like, wherein R6 and R7 may be combined with N to form (CH2)2-O-(CH2)2, or the like], e.g. 3-[5-(4-difluoromethoxy-phenyl)-1H-[1,2,4]triazol-3- yl]benzyl}dimethylamine(mixture of tautomers). The compound represented by formula I may be produced by, e.g. reacting a compound represented by formula III with a compound represented by formula IV to form a compound represented by formula V.
Abstract:
PROBLEM TO BE SOLVED: To obtain a 4-hydroxypiperidine derivative useful as a specific blocker of N-methyl-D-aspartic acid(NMDA) receptor sub-type and effective for an acute nerval degeneration induced by cerebral hemorrhage or cerebral trauma, etc., or a chronic nerval degeneration such as Alzheimer's disease. SOLUTION: This 4-hydroxypiperidine derivative is a compound of formula I X is O, NH, CH2 , etc.; R to R are each independently H, hydroxy, a lower alkyl-sulfonylamino, etc.; R to R are each independently H, hydroxy, a lower alkyl, etc.; (a) and (b) are each independently double bond or signal bond and when (a) is double bond, (b) is not double bond; (n) is an integer of 0 to 2; (m) is an integer of 1 to 3; (p) is 0 or 1} or its pharamaceutically permissible addition salt, e.g. (RS)-1-(5-hydroxy-2,3-dihydro-benzofuran-2-ylmethyl)-4-(4- methylbenzyl)piperidin-4-ol is exemplified. The compound of the formula I is obtained by, e.g. reacting a compound of formula II (L is OH, a halogen, etc.) with a compound of formula III.
Abstract:
The invention relates to a compound of the formulaits R,R-, S,S-enantiomers and racemic mixtures thereof and to their pharmaceutically acceptable acid addition salts.The compound of formula I and its R,R- and S,S-enantiomers may be used as medicaments for the treatment of diseases, wherein the therapeutic indications include acute forms of neurodegeneration caused by stroke or brain trauma; chronic forms of neurodegeneration such as Alzheimer's disease, Parkinson's disease, Huntington's disease or ALS (amyotrophic lateral sclerosis); neurodegeneration associated with bacterial or viral infections, and, diseases such as schizophrenia, anxiety, depression and chronic/acute pain.
Abstract:
The present invention relates to compounds of the general formula (I); wherein R l is halogen; R 2 is -C(O)NH 2 ,-C(NH 2 )=N-OH, -C(O)CH 2 Br, -C(O)N(CH 3 )OCH 3 or-C(O)-lower alkyl, or is a 5-membered heteroaryl group, containing 2 or 3 heteroatoms, selected from the group consisting of N, O or S, optionally substituted by R 3 , wherein R 3 is lower alkyl, -NR'R" or -C(O)R; R is NR'R", lower alkyl, or lower alkoxy; R'/R" are independently hydrogen or lower alkyl; as well as their pharmaceutically acceptable salts for the treatment of diseases, which are mediated by monoamine oxidase B inhibitors, for example Alzheimer's disease and senile dementia.
Abstract:
The invention relates to a compound of formula (I), its R,R- and S,S-enantiomeres and to their pharmaceutically acceptable acid addition salts. The compound of formula (I) and its R,R- and S,S-enantiomeres may be used as medicaments for the treatment of diseases, wherein the therapeutic indications include acute forms of neurodegeneration caused by stroke or brain trauma; chronic forms of neurodegeneration such as Alzheimer's disease, Parkinson's disease, Huntington's disease or ALS (amyotrophic lateral sclerosis); neurodegeneration associated with bacterial or viral infections, and diseases such as schizophrenia, anxiety, depression and chronic/acute pain.
Abstract:
The invention is concerned with novel piperazine amide derivatives of formula (I) wherein R1 to R11, W, X and Y are as defined in the description and in the claims, as well as physiologically acceptable salts thereof. These compounds bind to LXR alpha and LXR beta and can be used as medicaments.