ZWITTERIONIC BICYCLIC COMPOUNDS AND THEIR SALTS,SOLVATES,HYDRATES AND ESTERS

摘要

Esters, acetal ethers, thioethers and nitrogen substituted derivatives of certain bicyclic compounds are disclosed which are useful as anti-allergic, anti-inflammatory and/or cytoprotective agents and in treatment of hyperproliferative skin disease. Pharmaceutical compositions and methods of treatment employing such compounds are also disclosed.