Anticholinergics, processes for preparing them, and pharmaceutical compositions containing them

摘要

A compound of formula 1wherein:A is a group selected fromX<-> is an anion with a single negative charge;R<1 >and R<2 >are each independently a C1-C4-alkyl optionally substituted with hydroxy or halogen; andR<3>, R<4>, R<5>, R<6>, R<7>, and R<8 >are each independently hydrogen, C1-C4-alkyl, C1-C4-alkyloxy, hydroxy, CF3, CN, NO2, or halogen,with the proviso that at least one of the groups R<3>, R<4>, R<5>, R<6>, R<7>, and R<8 >is not hydrogen, processes for preparing these compounds, pharmaceutical compositions containing these compounds, and their use as pharmaceutical compositions.