Patent ID: 8124636

Claim:
A compound according to formula (I): wherein: R 1 is hydroxy-adamantyl, methoxycarbonyl-adamantyl, carboxy-adamantyl, aminocarbonyl-adamantyl, aminocarbonyl-bicyclo[2.2.2]octanyl, cholro-benzyl, benzyl, chlorophenylethyl, phenylethyl, difluorobenzyl, dichlorophenyl, trifluoromethylphenyl or difluorophenylethyl; R 2 and R 3 together with the nitrogen atom N* and the carbon atom C* to which they are attached form R 4 is hydrogen, alkyl, cycloalkyl, cycloalkylalkyl, alkoxyalkyl, arylalkyl, arylalkoxy, arylalkoxyalkyl, hydroxyalkyl, aryl, heteroarylalkyl, heteroaryloxyalkyl, substituted aryl, substituted heteroarylalkyl or substituted heteroaryloxyalkyl, wherein substituted aryl, substituted heteroarylalkyl and substituted heteroaryloxyalkyl are substituted with one to three substituents independently selected from alkyl, cycloalkyl, cyano, halogen, haloalkyl, hydroxy or alkoxy; R 5 is hydrogen; R 6 is hydrogen; and A is CR 5 R 6 ; or a pharmaceutically acceptable salt thereof.