| 摘要 |
<p>Compounds of formula (I), wherein R is a -CO-CH2-PO3H2, -CO-NH-tetrazole-5-yl, -CO-NHOH, -CO-NH-NH2, -alk-COOH, -alk-COOalk', -CH2-PO3H2, -CO-NH-SO2-R1 or -CH=CH-COOH radical, or a phenyl radical substituted by a carboxy radical, alk and alk' are an alkyl radical and R1 is an alkyl, trifluoromethyl or phenyl radical optionally substituted by a carboxy or alkoxycarbonyl radical, racemic mixtures, isomers, enantiomers and diastereoisomers thereof, salts thereof, the preparation thereof and drugs containing said compounds, are disclosed.</p> |
