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Questions and Answers
Which alkaloid is naturally occurring and is a substitution of a methyl group for a hydroxyl group on carbon 3 of the morphine molecule?
Which alkaloid is naturally occurring and is a substitution of a methyl group for a hydroxyl group on carbon 3 of the morphine molecule?
- Codeine (correct)
- Heroin
- Morphine
- Hydromorphone
What is the chemical modification in heroin compared to morphine?
What is the chemical modification in heroin compared to morphine?
- Substitution of a methyl group for a hydroxyl group on carbon 3
- Carbonyl group instead of hydroxyl at carbon 6 and lacks double bond between 7 and 8
- Substitution of an acetyl group on carbon 3 and 6 (correct)
- Contains phenantrene nucleus of morphine but is manufactured by synthesis
Which class of opioids is widely used to supplement general anesthesia or as a primary anesthetic in very high doses?
Which class of opioids is widely used to supplement general anesthesia or as a primary anesthetic in very high doses?
- Semisynthetic opioids
- Synthetic opioids (correct)
- Morphine derivatives
- Opium alkaloids
What is the unique characteristic of opioids in producing analgesia?
What is the unique characteristic of opioids in producing analgesia?
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What is the composition of the three rings of phenanthrene in opium alkaloids?
What is the composition of the three rings of phenanthrene in opium alkaloids?
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