Patent ID: 8486947

Claim:
A method for treating excessive daytime sleepiness comprising administering to a patient in need thereof a compound of formula (IIa): wherein: R 1 and R 2 form together with the nitrogen atom to which they are attached a saturated nitrogen-containing ring with m ranging from 2 to 8, or R a-b being independently a hydrogen atom or a linear or branched alkyl group containing 1 to 6 carbon atoms, and the chain A II selected from an unbranched alkyl group —(CH 2 ) nII — where n II is 3 ; the group X″ is —O—; the chain B II is an unbranched alkyl comprising 3 carbon atoms; and the group Y II represents a phenyl group, unsubstituted or mono- or polysubstituted with one or more identical or different substituents selected from halogen atoms, OCF 3 , CHO, CF 3 , SO 2 N(alkyl) 2 , NO 2 , S(aryl), SCH 2 (phenyl), an unbranched or branched alkene, an unbranched or branched alkyne optionally substituted with a trialkylsilyl radical, —O (alkyl), —O(aryl), —CH 2 CN, a ketone, an aldehyde, a sulphone, an acetal, an alcohol, a linear or branched alkyl group containing 1 to 6 carbon atoms, —CH═CH—CHO, —C(alkyl)=N—OH, —C(alkyl)=N—O(alkyl), —CH═NOH, —CH═NO(alkyl), —C(alkyl)=NH—NH—CONH 2 , an O-phenyl or —OCH 2 (phenyl) group, —C(cycloalkyl)=NOH, —C(cycloalkyl)=N—O(alkyl); or its pharmaceutically acceptable salts, hydrates, or hydrated salts, or the polymorphic crystalline structures of these compounds or their optical isomers, racemates, diastereoisomers or enantiomers, wherein said patient is suffering from Parkinson's disease, narcolepsy, or sleep apnea.