| 摘要 |
<p>The invention concerns methods for preparing enantiopure compounds of formula (I) wherein X represents a halogen atom, its additive salts with mineral or organic acids, or its salts with optically active organic acids. The invention also concerns intermediate compounds of formulae (II), (IV), (V), (VI), (VII), (XIII), (XIV), (XIX) and (XX). The invention further concerns enantiomerically pure compounds of formula (I), in the form of optically active salt with optically active organic acids.</p> |
