Lofentanyl
Lofentanyl is the carboxamide resulting from the formal condensation of the aryl amino group of methyl 4-anilino-3-methyl-1-(2-phenylethyl)piperidine-4-carboxylate with propanoic acid. It has a role as a mu-opioid receptor agonist and an opioid analgesic. It is a member of piperidines, a methyl ester, a tertiary amino compound and a tertiary carboxamide.