The European Commission's new Delegated Regulation (EU) 2022/1518 adds two drug precursors to the list of scheduled substances. The regulation entered into force on 3 October 2022.
www.famhp.be
Now controlled in the EU.
But the precursors to the benzofuran homologues of MD(x)A don't seem to be controlled. As I mentioned, I looked at the GC-MS/NMR data on MANY samples of that class and nobody has found a way to avoid positional isomers cropping up which is why they had to swap from the hydrochloride salt to the succinate salt - the former wouldn't crystalize.
But their are other scaffolds that are known and indeed patented in which the 3,4-MD derivatives are VERY similar to MDMA.