https://en.wikipedia.org/wiki/MDMAT Wow ! I can't believe there's an even stronger analogue. The substance is called M.D.M.A.T. click on the link and check it out.
I don't think the constrained serotonin releasers (MDAI, MDAT, etc.) follow the same SAR as their parent phenethylamines. They lack dopamine and norepinephrine release, and when combined with a traditional stimulant to feel more like a roll, they become neurotoxic again.