Compounds having beta2 adrenergic receptor agonist and muscarinic receptor antagonist activity

摘要

The invention is directed to compounds of formula I: wherein R¹, R², R³, R⁴, R⁵, R⁶, R^7a, R^7b, W, G¹, G², a, b, c, d and m are as defined in the specification, or a pharmaceutically acceptable salt or solvate or stereoisomer thereof. The invention is also directed to pharmaceutical compositions comprising such compounds; methods of using such compounds; and process and intermediates for preparing such compounds.