Quinuclidine derivatives and medicinal compositions containing the same

摘要

A compound of formula (I) is provided, wherein B, A, R1, R2, R3, R4, R5 and R6 are as defined herein and X− represents a pharmaceutically acceptable anion of a mono or polyvalent acid. Processes for the preparation of such compounds and pharmaceutical compositions containing them are also provided. group or a —CH2OH group; and X− represents a pharmaceutically acceptable anion of a mono or polyvalent acid.