Which opioid is a piperidine class?

Which opioid is a piperidine class?

• A. Meperidine
• B. Fentanyl
• C. Methadone
• D. Oxycodone

Answer: (A)

Opioids are grouped by their core chemical scaffolds, and the piperidine class is defined by having a piperidine ring (a six-member ring with one nitrogen) as the central structure. Meperidine is a classic member of this group because its core features that piperidine ring with the characteristic substituents attached. Fentanyl, while it also contains a piperidine ring, is usually described as a phenylpiperidine, a more specific subclass within piperidines. Methadone has a different backbone altogether, known as a diphenylheptane, not a piperidine ring. Oxycodone is built on a morphinan/phenanthrene framework, not a piperidine core. So the one that fits the broad piperidine classification is meperidine, reflecting its piperidine-based core structure.

Opioids are grouped by their core chemical scaffolds, and the piperidine class is defined by having a piperidine ring (a six-member ring with one nitrogen) as the central structure. Meperidine is a classic member of this group because its core features that piperidine ring with the characteristic substituents attached.

Fentanyl, while it also contains a piperidine ring, is usually described as a phenylpiperidine, a more specific subclass within piperidines. Methadone has a different backbone altogether, known as a diphenylheptane, not a piperidine ring. Oxycodone is built on a morphinan/phenanthrene framework, not a piperidine core.

So the one that fits the broad piperidine classification is meperidine, reflecting its piperidine-based core structure.