| 摘要 |
The invention relates to indolyl piperidinyl derivatives of formula (I) wherein: A<1 >represents an alkylene, alkyleneoxy, alkylenethio, alkanoylene or hydroxyalkylene group; A<2 >represents an alkylene, alkyleneoxy, alkylenethio, alkanoylene or an alkyleneoxyalkylene group; W<1 >represents a phenylene, furanylene or pyridinylene group which is unsubstituted or substituted by one or more halogen atoms, alkoxy groups and/or alkyl groups; W<2 >represents a 3-10 membered monocyclic or bicyclic group containing from 1 to 3 heteroatoms said group being unsubstituted or substituted by one or more halogen atoms, alkyl groups, alkoxy groups and/or oxo groups; R<1 >represents a hydrogen or halogen atom or an alkyl, alkoxy or methylamino group; and R<2 >represents a carboxyl group; and pharmaceutically acceptable salts thereof; to processes for their preparation; to pharmaceutical compositions containing them; and to their medical use as antihistaminic and antiallergic agents.
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