Write down structure of the following compounds:
3-bromo-N-ethylbutanamide

Explanation

To write down the structure of 3-bromo-N-ethylbutanamide, we will follow these steps:

### Step 1: Identify the components of the compound
- The compound name is **3-bromo-N-ethylbutanamide**.
- The term **butanamide** indicates that the main chain consists of 4 carbon atoms (butane) and contains an amide functional group (C(=O)NH2).
- The **N-ethyl** indicates that there is an ethyl group (C2H5) attached to the nitrogen of the amide.
- The **3-bromo** indicates that a bromine atom (Br) is attached to the third carbon of the butane chain.

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