Novel antihistaminic piperidine derivatives and intermediates for the preparation thereof
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Abstract
This invention relates to novel piperidine derivatives of formula (I) and a process for the preparation thereof.
wherein
R1 is H or C1-C6alkyl wherein the C1-C6alkyl moiety is straight or branched;
R2 is —COOH or —COOalkyl wherein the alkyl moiety has from 1 to 6 carbon atoms and is straight or branched; or stereoisomers or pharmaceutically acceptable acid addition salt thereof.
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Citations
18 Claims
- 1. A compound of the formula
- 11. A process for preparing a compound of the formula
Specification