Oxidation in Carbon-Nitrogen Systems

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Questions and Answers

What is the main reason for the importance of metabolizing nitrogen functionalities like amines and amides?

  • To produce energy for the body
  • To aid in DNA replication
  • To regulate blood sugar levels
  • To facilitate the synthesis of natural products and drugs (correct)

Which class do aromatic and heterocyclic nitrogen compounds belong to?

  • Alicyclic
  • Amides
  • Heterocyclic (correct)
  • Aliphatic

What is the key role of hepatic CYP mixed-function oxidase enzymes in the oxidation process involving tertiary aliphatic and alicyclic amines?

  • Preventing any chemical reactions in the liver
  • Converting amines into ketones directly
  • Facilitating the removal of alkyl groups from amines (correct)
  • Inducing inflammation in the liver

What is the primary product formed during oxidative N-dealkylation of tertiary amines?

<p>Carbinolamine intermediate (D)</p> Signup and view all the answers

Why is N-dealkylation of the t-butyl group not possible by the carbinolamine pathway?

<p>Because α-carbon hydroxylation cannot occur on t-butyl (D)</p> Signup and view all the answers

'Secondary amines' belong to which class of nitrogen-containing compounds?

<p>Aliphatic amines (D)</p> Signup and view all the answers

Where does enzymatic introduction of a hydroxyl group into a monosubstituted cyclohexane ring generally occur?

<p>C-4 (C)</p> Signup and view all the answers

Which type of biotransformation process involves hydroxylation of the -carbon atom attached directly to the heteroatom (N, O, S)?

<p>Oxidative N-dealkylation (B)</p> Signup and view all the answers

What is a common functionality found in most drugs and foreign compounds?

<p>Sulfur (A)</p> Signup and view all the answers

Which group is susceptible to mixed-function oxidation (alicyclic hydroxylation)?

<p>Cyclohexyl group (B)</p> Signup and view all the answers

Which type of process involves oxidative N-, O-, and S-dealkylation reactions?

<p>Oxidative N-dealkylation (C)</p> Signup and view all the answers

Which type of functional groups are involved in metabolic oxidation processes?

<p>Nitrogen and oxygen functionalities (B)</p> Signup and view all the answers

What type of metabolites are formed in the hydroxylation of cyclic amides to the nitrogen atom?

<p>Carbinolamides (B)</p> Signup and view all the answers

Which process involves the conversion of carbon-sulfur double bonds to carbon-oxygen double bonds?

<p>Desulfuration (B)</p> Signup and view all the answers

What is the result of S-oxidation?

<p>Sulfoxide derivatives (A)</p> Signup and view all the answers

Which group is susceptible to N-oxidation involving oxidative bond cleavage?

<p>Secondary amines (A)</p> Signup and view all the answers

What are the intermediate products in oxidative processes like benzylic, allylic, or aliphatic hydroxylation?

<p>Carbinol metabolites (C)</p> Signup and view all the answers

What undergoes spontaneous carbon-oxygen bond cleavage in the biotransformation of ethers?

<p>Hemiacetal or hemiketal (D)</p> Signup and view all the answers

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