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US 4,058,642 AGranted
2-Amino-3-(3'-hydroxy-phenyl)-propanols and salts thereof
AssigneeBoehringer Ingelheim GmbH
InventorsErnst-Otto Renth, Anton Mentrup, Kurt Schromm, Alexander Walland
Life of this patent
Estimating the term…
Abstract
Compounds of the formula ##STR1## wherein R.sub.1 is hydrogen, chlorine, hydroxyl, trifluoromethyl, methyl or methoxy, and R.sub.2 is hydrogen, alkyl of 1 to 2 carbon atoms or benzyl; And non-toxic, pharmacologically acceptable acid addition salts thereof; the compounds as well as the salts are useful as hypertensives.
Claims8
A racemic mixture or optically active antipode of a compound of the formula ##STR16## wherein R.sub.1 is hydrogen, chlorine, methyl, methoxy or 5-hydroxyl, and
- R.sub.2 is hydrogen, methyl or ethyl,
- or a non-toxic, pharmacologically acceptable acid addition salt thereof.
Dependencies are inferred from the claim text.