Patent ID: 8604046

Claim:
A method of modulating H3 receptor activity, comprising administering to a patient in need thereof a therapeutically effective amount of a compound of formula (I): wherein m is 1 or 2; n is 1 or 2; p is 1 or 2; R 1 is hydrogen, (C 1 -C 4 )alkyl, CF 3 , or (C 1 -C 4 )alkoxy-(C 1 -C 4 )alkyl; R 2 is hydrogen, halogen, (C 1 -C 4 )alkyl or CF 3 ; and R 3 is hydrogen, methoxyethylcarbonyl, tert-butyloxycarbonyl, cyclopropylmethyl, cyclopentylmethyl, cyclohexylmethyl, tetrahydropyranyl, benzyl, furanylmethyl, cyclopentane-carbonyl, cyclohexanecarbonyl, trifluoromethoxybenzoyl, fluorobenzoyl, benzyl-carbonyl, naphthylcarbonyl, benzenesulfonyl, fluorobenzene sulfonyl, methoxybenzenesulfonyl, isopropyl, tetrahydropyranylmethyl, tetrahydropyran carbonyl, benzoyl, pyridine carbonyl or furan carbonyl; or a salt, enantiomer or diastereomer thereof.