| abstract |
Novel N-heterocyclyl-4-piperidinamines of the formulan wherein L contains an optionally substituted five- or six-membered ring containing at least one nitrogen atom. and which is condensed with an optionally substituted five- or six-membered ring; the pharmaceutically acceptable acid addition salts and possible stereochemically isomeric forms thereof, which compounds are anti-allergic agents; pharmaceutical compositions containing such compounds as an active ingredient and methods of preparing said compounds and pharmaceutical compositions. |