Acyl compounds
AssigneeNovartis AG
InventorsPeter Buhlmayer, Franz Ostermayer, Tibur Schmidlin
Life of this patent
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Abstract
Compounds of the formula ##STR1## and their salts, in which R.sub.1, is a C.sub.1 -C.sub.7 aliphatic hydrocarbon radical; X.sub.1 is --CO; X.sub.2 is a divalent aliphatic hydrocarbon radical which comprises an ethyl group and an alkylene of 2 to 6 carbon atoms; R.sub.2 is hydroxy, carboxy or alkoxycarbonyl in which alkoxy is from 1 to 7 carbon atoms; X.sub.3 is a divalent aliphatic hydrocarbon; R.sub.3 is carboxyl or 5-tetrazolyl; and the rings A and B independently of one another are otherwise unsubstituted; can be prepared in a known manner and may be used as active ingredients for medicaments.
Claims6
A compound of the formula:
- ##STR11## in which R1 is alkyl of 1 to 7 carbon atoms;
- R2 is hydroxy, carboxy, or alkoxycarbonyl in which alkoxy having from 1 to 7 carbon atoms;
- R3 is carboxy or 1H-tetrazol-5-yl;
- and
- X.sub.4 and X.sub.5 taken together are alkylene of 2 to 6 carbon atoms, or a pharmaceutically acceptable salt thereof.
Dependencies are inferred from the claim text.