How is Ropinirole (CAS: 91374-21-9) typically synthesized?

Ropinirole is synthesized via a multi-step process that includes reduction of a ketone, cyclization, and final ring-opening. Common starting materials include 4-(2-(4-(4-(2-(2-aminopropanoyl)phenyl)phenyl)phenoxy)ethoxy)benzaldehyde. The synthesis involves the use of catalysts like palladium and ligands, ensuring high selectivity and good yield. Detailed synthesis protocols can be found in the literature and patents.