Chemical in last step of CUMYL-3TMS-PRINACA?

[Zenside]

So I want to make a 3TMS analogue with 3,1-NaphthoylIndole. What would be the chemical I would use to attach a trimethylsilylbutyl chain to the main precursor, like how 1-bromopentane is used in the preparation of JWH-018?

 

[Zenside]

The finished theoretical cannabinoid would be named 1-(trimethylsilylbutyl)-3-(1-napthoyl)indole