How is Homosibutramine (CAS: 935888-80-5) typically synthesized?

Homosibutramine (CAS 935888-80-5) is typically synthesized via a multi-step process involving aromatic substitution and alkylation reactions. Commonly, a benzene ring is first substituted with an appropriate functional group, followed by alkylation with a butyl derivative to introduce the butyl chain. The process requires the use of specific catalysts and solvents to achieve the desired selectivity and yield.