. "13147-09-6"@en . . . "experimental"@en . . . "illicit"@en . "desmethylprodine"@en . "Desmethylprodine, a derivative of meperidine, is an opioid analgesic with the potency of morphine. It has been listed as a Schedule I controlled drug in the United States, and thus is not used clinically. It is known to be a designer drug, synthesized in 1977, for the purpose of recreational use. Illicit manufacturing has occurred. "@en . "MPPP"@en . . . . . . . . . . . . . . . . . . "PPMP"@en . "3-Demethylprodine"@en . . . . . "1-Methyl-4-phenyl-4-propionoxypiperidine"@en . . . "1. Schmidt, N., and B. Ferger. \"Neurochemical findings in the MPTP model of Parkinson's disease.\" Journal of neural transmission 108.11 (2001): 1263-1282."@en . . . . "A toxic impurity which may be encountered in desmethylprodine synthesis, MPTP, is implicated in the destruction of brain tissue in the substantia nigra, and has lead to permanent Parkinsonian symptoms. [1]"@en . "1-Methyl-4-phenyl-4-piperidinol propionate"@en . . .