If you go with the massive legitimate chemical uber-supplier that produces this totally legal compound, you'll see they cite a paper on drug design based on structures related to modafinil.
If you hydrolyze the thionyl-acetamide off, you get what is basically fluorenol, which they speculate is the active metabolite (which would get oxidized pretty fast to fluorenone). Hard to know for sure without reading the thing (paywall).
That fluorenol base is found in so many psychoactives (just constrain the diphenyl groups in everything from Benadryl to Prozac), it's hard to think it wouldn't be too; but maybe, without the ether/ester/thionyl the specificity is lost, and you just get a low-potency CNS depressant. Or toxin. It is harmful to fish.
And yes, if you visit the website that is impossible to find, it invokes the serotonin #6 receptor, which when antagonized may help with appetite suppression and memory. But where the fluorenol connection comes from . . . I'm guessing cause Alzheimer's makes good ad copy for alleged nootropics and who checks anyway?