摘要:
The present invention relates to the use in the treatment of cognitive disorders associated with the aging processes of the brain and perinatal brain disorders of compounds which act as inhibitors of the enzyme kynurenine aminotransferase (KAT). The present invention also provides, as novel compounds, a selected class of KAT inhibitors which are the compounds of formula (IA) ##STR1## wherein R is halogen, C.sub.1 -C.sub.6 alkyl, C.sub.5 -C.sub.7 cycloalkyl, phenyl-C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.6 alkoxy, C.sub.6 -C.sub.10 aryloxy, phenyl-C.sub.1 -C.sub.4 alkoxy or trifluoromethyl, and R.sub.1 is hydroxy, C.sub.1 -C.sub.6 alkoxy, amino, mono-C.sub.1 -C.sub.6 alkylamino, di-C.sub.1 -C.sub.6 alkylamino, hydroxylamino, C.sub.1 -C.sub.4 alkoxyamino or benzyloxyamino, with the provisos that: (i) when R.sub.1 is hydroxy and, at the same time, R is halogen, then this halogen is not fluorine; and (ii) when R.sub.1 is hydroxy and, at the same time, R is C.sub.1 -C.sub.6 alkyl, then this C.sub.1 -C.sub.6 alkyl is not methyl, either as a single isomer or as a mixture of isomers, and the pharmaceutically acceptable salts thereof.
摘要:
A fluoro-substituted benzoylpropionic acid compound of formula (I) either as a single optical isomer or as a mixture of optical isomers ##STR1## wherein R is hydroxy, amino, hydroxylamine, --OR', --NHR', N(R').sub.2 or --NHOR' in which R' is C.sub.1 -C.sub.6 alkyl or benzyl;or a pharmaceutically acceptable salt thereof.
摘要:
The present invention relates to amino-benzothiazole compounds of formula (I) wherein X, Y, Z and R1 are as defined in the specification, their pharmaceutically acceptable salts, processes for their preparation, pharmaceutical composition comprising such compounds and their use as neuroprotective agents.
摘要:
4-phenyl-4-oxo-butanoic acid derivatives for use in the treatment of the human or animal body by therepy; particularly as kynurenine-3-hydroxylase inhibitors, in the prevention and/or treatment of a neurodegenerative disease wherein the inhibition of such an enyzme is needed. The present invention further comprises a selected class of the above mentioned 4-phenyl-4-oxo-butanoic acid derivatives, their pharmaceutically acceptable salts, a process for their preparation and pharmaceutical compositions containing them.
摘要:
5-(3-phenyl-3-oxo-propyl)-1H-tetrazole derivatives of formula (I) wherein each of R and R.sub.1, being the same or different, is hydrogen, halogen, hydroxy, trifluoromethyl, cyano, nitro, phenyl, benzyl, C.sub.1 -C.sub.6 alkyl, C.sub.1 -C.sub.6 alkoxy, C.sub.1 -C.sub.6 alkylthio, SOR.sub.4 or SO.sub.2 R.sub.4 wherein R.sub.4 is C.sub.1 -C.sub.6 alkyl, --N(R.sub.5 R.sub.6) in which each of R.sub.5 and R.sub.6 is, independently, hydrogen, C.sub.1 -C.sub.6 alkyl, formyl or C.sub.2 -C.sub.6 acyl; R.sub.2 is hydrogen, C.sub.1 -C.sub.6 alkyl, C.sub.1 -C.sub.6 alkoxy, benzyl, phenyl; R.sub.3 is hydrogen, hydroxy, C.sub.1 -C.sub.6 alkyl, C.sub.1 -C.sub.6 alkoxy, benzyl, phenyl or a group --N(R.sub.7 R.sub.8) in which each of R.sub.7 and R.sub.8 is, independently, hydrogen, C.sub.1 -C.sub.4 alkyl, benzyl, phenyl, or one of R.sub.7 and R.sub.8 is hydrogen and the other is COR.sub.9 wherein R.sub.9 is hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, phenyl or a group --N(R.sub.10 R.sub.11) in which R.sub.10 and R.sub.11 are, each independently, hydrogen or C.sub.1 -C.sub.4 alkyl or, taken together, R.sub.2 and R.sub.3 form a carbocyclic C.sub.3 -C.sub.6 ring; and pharmaceutically acceptable salts thereof have kynurenine-3-hydroxylase enzyme inhibitory activity. ##STR1##
摘要:
4-Phenyl-4-oxo-butenoic acid derivatives for use in the treatment of the human or animal body by therapy; particularly as kynurenine-3-hydroxylase inhibitors, in the prevention and/or treatment of a neurodegenerative disease wherein the inhibition of such an enzyme is needed. The present invention further comprises a selected class of the above mentioned 4-phenyl-4-oxo-butenoic acid derivatives, their pharmaceutically acceptable salts, a process for their preparation and pharmaceutical compositions containing them.
摘要:
Disclosed are isolated DNAs encoding a kynurenine aminotransferase selected from the group consisting of: (a) an isolated DNA sequence which encodes rat KAT; (b) an isolated DNA sequence which hybridizes to the isolated DNA sequence of (a) above and which encodes a KAT enzyme; and (c) an isolated DNA sequence differing from the isolated DNA sequences of (a) and (b) above in codon sequence due to the degeneracy of the genetic code, and which encodes a KAT enzyme. Also disclosed are vectors and host cells containing the same; oligonucleotide probes for identifying kynurenine aminotransferase; and isolated and purified kynurenine aminotransferase.
摘要:
Disclosed are isolated DNAs encoding a kynurenine aminotransferase selected from the group consisting of:(a) isolated DNA sequences which encode rat KAT;(b) an isolated DNA sequence which hybridizes to isolated DNA sequences of (a) above and which encodes a mammalian KAT enzyme; and(c) an isolated DNA sequence differing from the isolated DNA sequences of (a) and (b) above in codon sequence due to the degeneracy of the genetic code, and which encodes a KAT enzyme.Vectors and host cells containing the same, oligonucleotide probes for identifying kynurenine aminotransferase, and isolated and purified kynurenine aminotransferase are also disclosed.
摘要:
The present invention provides an isolated polynucleotide encoding for the kynurenine-3-hydrolase (Kyn-3-OHase) and methods of transiently expressing thereof.