Couple it with diethylamine using a catalyst like (2-(Thiophen-2-ylmethyl)phenyl)boronic acid in this example DOI: 10.1021/acs.joc.5b00378
You will fail to isolate sufficient quantities and give up quickly. Or you'll fail to acquire diethylamine.
Why bother with it anyway if there's the primary amide that can be isolated from plants? Better yet why bother with so called psychedelics. Only spiritfaggots take them and convince themselves the effects are good.