PSMA Imaging Agents
US-2020377549-A1 · Dec 3, 2020 · US
US12552779B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12552779-B2 |
| Application number | US-202118004952-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 9, 2021 |
| Priority date | Jul 10, 2020 |
| Publication date | Feb 17, 2026 |
| Grant date | Feb 17, 2026 |
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The present invention relates to 1-alkyl-5-arylidene-2-selenoxoimidazolidine-4-ons and derivatives thereof, a method for producing the same, and a composition for prevention, improvement or treatment of neurodegenerative disease containing the same. Specifically, 1-alkyl-5-arylidene-2-selenoxoimidazolidine-4-ons and derivatives thereof, which are novel compounds of the present invention, can be used as an excellent composition for prevention, improvement or treatment of neurodegenerative disease.
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The invention claimed is: 1 . A compound represented by the following Chemical Formula 1 or a pharmaceutically acceptable salt of the compound: where, R 1 and R 1 ′ are each independently selected from the group consisting of hydrogen, alkyl, cycloalkyl, heterocycloalkyl, an aryl group, heteroaryl, benzyl, and a phenethyl group, or R 1 and R 1 ′ may bond to each other to form a single ring; R 2 and R 3 are each independently hydrogen, halo, cyano, alkyl, alkoxy, alkenyl, alkynyl, cycloalkyl, heterocycloalkyl, heterocycloalkyl-alkyl, aryl, aryl-alkyl, or heteroaryl; and the alkyl, alkoxy, alkenyl, alkynyl, cycloalkyl, heterocycloalkyl, heterocycloalkyl-alkyl, aryl, aryl-alkyl, or heteroaryl may not be substituted or may be substituted with one or more groups selected from the group consisting of hydroxy; halogen; alkyl; -alkyl-hydroxy; -heterocycloalkyl-alkyl-hydroxy; —NH alkyl-O-alkyl-hydroxy; —NH alkyl-O-alkyl-halogen; —NH alkyl-heterocycloalkyl; alkoxy; amino; dialkylamino; nitro; cyano; carbonyl; cycloalkyl; heterocycloalkyl unsubstituted or substituted with alkyl; aryl; and heteroaryl. 2 . The compound represented by Chemical Formula 1 or a pharmaceutically acceptable salt of the compound according to claim 1 , wherein R 1 and R 1 ′ are each independently selected from the group consisting of hydrogen, C 1 -C 6 alkyl, C 3 -C 8 cycloalkyl, C 3 -C 8 heterocycloalkyl, C 6 -C 10 aryl, C 5 -C 10 heteroaryl, benzyl and a phenethyl group, or R 1 and R 1 ′ may bond to each other to form a single ring. 3 . The compound represented by Chemical Formula 1 or a pharmaceutically acceptable salt of the compound according to claim 1 , wherein 4 . The compound represented by Chemical Formula 1 or a pharmaceutically acceptable salt of the compound according to claim 1 , wherein R 2 is hydrogen; C 1 -C 12 alkyl unsubstituted or substituted with halogen; C 3 -C 10 cycloalkyl; —C 1 -C 6 alkyl-C 3 -C 10 heterocycloalkyl containing one or more heteroatoms selected from the group consisting of N, S and O; —C 6 -C 10 aryl unsubstituted or substituted with halogen or C 1 -C 12 alkyl; or —C 1 -C 6 alkyl-C 6 -C 10 aryl. 5 . The compound represented by Chemical Formula 1 or a pharmaceutically acceptable salt of the compound according to claim 1 , wherein R 2 is hydrogen; C 1 -C 12 alkyl; C 1 -C 6 alkyl substituted with halogen; C 3 -C 8 cycloalkyl; —C 1 -C 6 alkyl-C 3 -C 10 heterocycloalkyl containing heteroatoms N and O; —C 6 -C 10 aryl unsubstituted or substituted with halogen or C 1 -C 6 alkyl; or —C 1 -C 6 alkyl-C 6 -C 10 aryl. 6 . The compound represented by Chemical Formula 1 or a pharmaceutically acceptable salt of the compound according to claim 1 , wherein R 2 is hydrogen; C 1 -C 12 alkyl; C 1 -C 6 alkyl substituted with halogen; C 3 -C 8 cycloalkyl; —C 1 -C 6 alkyl-morpholine; phenyl unsubstituted or substituted with halogen or C 1 -C 6 alkyl; or —C 1 -C 6 alkyl-phenyl. 7 . The compound represented by Chemical Formula 1 or a pharmaceutically acceptable salt of the compound according to claim 1 , wherein R 3 is C 6 -C 10 heterocycloalkyl, C 6 -C 10 aryl or C 6 -C 10 heteroaryl, and the heterocycloalkyl, aryl or heteroaryl is not substituted or is substituted with one or more groups selected from the group consisting of hydroxy; halogen; C 1 -C 6 alkyl; —C 1 -C 6 alkyl-hydroxy; —C 3 -C 8 heterocycloalkyl-C 1 -C 6 alkyl-hydroxy; —NHC 1 -C 6 alkyl-O—C 1 -C 6 alkyl-hydroxy; —NHC 1 -C 6 alkyl-O—C 1 -C 6 alkyl-halogen; —NHC 1 -C 6 alkyl-C 3 -C 8 heterocycloalkyl; C 1 -C 6 alkoxy; amino; di-C 1 -C 6 alkylamino; and C 3 -C 8 heterocycloalkyl unsubstituted or substituted with C 1 -C 6 alkyl. 8 . The compound represented by Chemical Formula 1 or a pharmaceutically acceptable salt of the compound according to claim 1 , wherein R 3 is C 6 -C 10 heterocycloalkyl having a heteroatom N, C 6 -C 10 aryl or C 6 -C 10 heteroaryl having a heteroatom N, and the heterocycloalkyl, aryl or heteroaryl is not substituted or is substituted with one or more groups selected from the group consisting of hydroxy; halogen; C 1 -C 6 alkyl; —C 1 -C 6 alkyl-hydroxy; —C 3 -C 8 heterocycloalkyl-C 1 -C 6 alkyl-hydroxy; —NHC 1 -C 6 alkyl-O—C 1 -C 6 alkyl-hydroxy; —NHC 1 -C 6 alkyl-O—C 1 -C 6 alkyl-halogen; —NHC 1 -C 6 alkyl-C 3 -C 8 heterocycloalkyl; C 1 -C 6 alkoxy; amino; di-C 1 -C 6 alkylamino; and C 3 -C 8 heterocycloalkyl unsubstituted or substituted with C 1 -C 6 alkyl. 9 . The compound represented by Chemical Formula 1 or a pharmaceutically acceptable salt of the compound according to claim 1 , wherein R 3 is phenyl, naphthyl, pyridine, piperazine, or imidazole, and the phenyl, naphthyl, pyridine, piperazine, or imidazole is not substituted or is substituted with one or more groups selected from the group consisting of hydroxy; halogen; C 1 -C 6 alkyl; —C 1 -C 6 alkyl-hydroxy; -piperazine-C 1 -C 6 alkyl-hydroxy; —NHC 1 -C 6 alkyl-O—C 1 -C 6 alkyl-hydroxy; —NHC 1 -C 6 alkyl-O—C 1 -C 6 alkyl-halogen; —NHC 1 -C 6 alkyl-morpholine; C 1 -C 6 alkoxy; amino; di-C 1 -C 6 alkylamino; pyrrolidine; piperidine; piperazine unsubstituted or substituted with C 1 -C 6 alkyl; and morpholine. 10 . The compound represented by Chemical Formula 1 or a pharmaceutically acceptable salt of the compound according to claim 1 , which is selected from the group consisting of the following compounds: Compound Structural formula 1 2 3 4 5 6
linked by a carbon chain containing only aliphatic carbon atoms · CPC title
having three double bonds between ring members or between ring members and non-ring members · CPC title
for treating neurodegenerative disorders of the central nervous system, e.g. nootropic agents, cognition enhancers, drugs for treating Alzheimer's disease or other forms of dementia · CPC title
not condensed and containing further heterocyclic rings, e.g. timolol · CPC title
Non-condensed piperazines containing further heterocyclic rings, e.g. rifampin, thiothixene or sparfloxacin · CPC title
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