| abstract |
The invention relates to novel optically active 3,4-methylenedioxyphenylbutane derivatives of the general formula I <IMAGE> in which Z represents CH2-CH2 or CH = CH, and X represents amino, hydroxyl or esterified hydroxyl, the acyl radical of the ester group being R-CO or R-SO2, and where R denotes an optionally substituted alkyl or aryl radical, a plurality of processes for their preparation and their use as intermediates for the preparation of optically active pharmaceutical active compounds. |