Piperazinophenyl- and piperazinophenyloxy-carboxylic acid derivatives as well as processes and intermediates for their preparation and medicaments containing these compounds
摘要
<p>Piperazinophenyl derivatives of formula (I) and their salts, are new. Z = O or CH2; B = phenyl or pyridyl; and R1 = H or biolabile ester forming group.</p>
