(Solved): ii) Salmeterol (structure shown below) is a \( \beta_{2} \)-adrenergio receptor agonist. Describe h ...

ii) Salmeterol (structure shown below) is a \( \beta_{2} \)-adrenergio receptor agonist. Describe how the structure of salmeterol is designed to give \( \beta_{2} \)-adrenergic receptor agonist activity. [6 Marks] For the synthetic route to salmeterol shown below, suggest a reaction mechanism for the first step and a reagent for the second step.