Draw a structure from the following name: N-cyclopentyl-N-propylvaleramide.

• A.
• B.
• C.
• D.

Answer: (B)

Verified step by step guidance

1. Identify the core structure: The name 'valeramide' indicates the presence of a valeric acid derivative, specifically an amide. Valeric acid has a five-carbon chain, so the core structure is a five-carbon chain with an amide group (C=O) attached to the nitrogen (N).
2. Determine the substituents on the nitrogen: The name 'N-cyclopentyl-N-propyl' indicates that there are two substituents attached to the nitrogen atom of the amide group. One is a cyclopentyl group (a five-membered carbon ring) and the other is a propyl group (a three-carbon chain).
3. Draw the amide linkage: Start by drawing the amide group, which consists of a carbonyl group (C=O) bonded to a nitrogen atom (N).
4. Attach the substituents to the nitrogen: Connect the cyclopentyl group and the propyl group to the nitrogen atom of the amide linkage.
5. Complete the structure: Ensure that the valeric acid chain is correctly attached to the carbonyl carbon of the amide group, completing the structure of N-cyclopentyl-N-propylvaleramide.