| 摘要 |
Compounds selected from the group consisting of (i) products of formula (I), wherein R is a hydrogen atom, an OH group, an OCH3 group or a CH2OH group, *C, when R is not a hydrogen atom, is an asymmetrical carbon atom having configuration (R,S), (R) or (S), and **C is an asymmetrical carbon atom having configuration (R,S) or (R); and (ii) addition salts thereof, are disclosed. A method for preparing said compounds, the use thereof in therapy and in the field of analysis, as well as intermediate products, are also disclosed.
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