Anyone know anything about 4-MTA?

[mp_]

4-MTA, also known as 4-methylthioamphetamine, is an amphetamine (obviously) -- the methylthio derivative of amphetamine.
All I know is that it can be made from 4-methylthiophenylacetone and the Leuckart reaction:

Which raises two questions for me:
1. How is the leuckart reaction carried out here? Could ammonium formate be used?
2. How would one prepare the precursor? Can you just do something like:

• methyl(phenyl)sulfane (benzyl methyl sulfane) is reacted with chloroacetone

or is this not feasable whatsoever/a different method

 

[Osmosis Vanderwaal]

A Brief Review: Advancement in the Synthesis of Amine through the Leuckart ... https://www.mdpi.com/2624-781X/4/1/7
Has the reaction you are looking for,
Methlformamide
Methoxypheylacetone
Forming acid
Scheme 7