| abstract |
(57) [Summary] Formula (I) Wherein, A is a hydrogen atom or a hydroxyl group, B is a hydrogen atom or a C 1-8 alkyl, C 1-8 alkenyl, C 1-8 fluoroalkyl or C 1-8 perfluoroalkyl group, R 1 , R 2 and R 5 are the same or different and are each a hydrogen atom, a halogen such as chlorine, bromine or fluorine, C 1-8 alkyl, C 1-8 alkenyl, C 3-8 cycloalkyl, C 3- 8 cycloalkenyl, C 6 , C 10 or C 14 aryl, C 1-6 alkoxycarbonyl, C 1-6 hydroxyalkyl, C 1-6 alkoxyalkyl, C 1-6 alkoxy, C 1-8 fluoroalkyl or C 1 -8 perfluoroalkyl group, or R 1 and R 2 together form a C 3-8 cycloalkyl, C 3-8 cycloalkenyl or C 6 , C 10 or C 14 aryl ring, with the proviso that R 1 and R 2 are the same R 3 and R 4 are the same or different and are each a hydrogen atom or C 1-8 alkyl, C 1-8 alkenyl, C 3-8 cycloalkyl or C 3- An 8- cycloalkenyl group, or R 3 and R 4 together form a C 2-6 cycloalkyl or C 3-6 cycloalkenyl ring such as piperidyl, azetidinyl or pyrrolidyl]. Disclosed are compounds in the form of their mixtures, including stereoisomers or racemic mixtures, as well as pharmaceutically acceptable acid addition salts thereof. The compounds may be used in therapy. |