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US 12,759,983 B2Granted
Hydrogenated quinoxalines
AssigneeOtsuka Pharmaceutical Co., Ltd.
InventorsTomoichi Shinohara, Tsuyoshi Nishiyama
Life of this patent
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Abstract
Provided is a therapeutic agent for ADHD having an efficacy comparable to that of central nervous system stimulants and the same low risk of drug dependence and abuse as existing non-central nervous system stimulants, more particularly a compound represented by formula [I]: wherein each symbol is as defined in the description, or a salt thereof.
Claims35
A compound represented by formula [I]:
- wherein
- R11, R12 and R13 are the same or different and each independently represents hydrogen or C1-6 alkyl, or R11 and R12 together with the adjacent carbon atom form a 3- to 8-membered cycloalkane;
- R22, R23, R25 and R26 are the same or different and each independently represents hydrogen, halogen, C1-6 alkyl or C1-6 alkoxy, or R22 and R23 form a 9- to 10-membered bicyclic ring system containing oxygen atom as ring-constituting atom together with a benzene ring adjacent to them;
- R31 and R32 are the same or different and each independently represents hydrogen or halogen, or a salt thereof.
1 more element
Dependencies are inferred from the claim text.