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I looked at the drug you wanted to convert and it seems it's schedule 1 everywhere but the UK making it unpractical for most but I'll assume you're a bong. It's a morpholine ethyl-ether which means any standard demethylation method which works for codeine to morphine conversion should work far better for this case, I'd look at the L-selectride process for literature. However, it seems it's only available in doses from 5mg making it very hard to get in quantity, if you live in bongistan (I feel awful for you) but you also have access to Dihydrocodeine in 8mg doses over the counter in pill form. Why wouldn't you use that as the starting material? It's far cheaper mg for mg and easier to make into a first pass opiate.
For example, there's an old patent the krauts have to make hydrocodone where they hydrogenate codeine to make dihydrocodeine (already done for you) and conduct an oppenauer oxidation with benzophenone to produce the hydrocodone.
I have a translated process here:
"Firstly, 5mmols of potassium tert-butoxide is dissolved in 20ml of benzene in the reaction flask and to it is added a mixture of 1.66mmols (500mg) of dihydrocodeine, 16.5mmols (3g) of benzophenone in 15ml of dry benzene in one shot. This is then refluxed for 2.5h in an inert atmosphere and will form an off white precipitate. After the reaction the flask is placed in an ice bath and 15ml of 3M HCl is added followed by separation via Liquid liquid extraction (2x15ml HCl), the acid is then brought to PH12 with 20% NaOH and extracted with ethyl acetate (3x100ml) This is evaporated to yield pure Hydrocodone base. [although you can probably salt out with HCl gas or tartaric acid]"
(Legal disclaimer: This is super illegal to actually do without a license, although the information is public and widely available. Hence why I'm willing to discuss it. Don't actually do this.)
