How is 2-(4-{3-[2-(Trifluoromethyl)-10H-phenothiazin-10-yl]propyl}-1-piperazinyl)ethyl decanoate (CAS: 5002-47-1) typically synthesized?

2-(4-{3-[2-(Trifluoromethyl)-10H-phenothiazin-10-yl]propyl}-1-piperazinyl)ethyl decanoate can be synthesized through a multi-step process involving coupling reactions, esterification, and coupling of the phenothiazine derivative with the piperazine-containing compound. The synthesis typically uses catalytic amounts of sulfuric acid as a coupling agent and proceeds with good selectivity and yield. The exact conditions and reagents can vary based on the specific starting materials.