Write the IUPAC names of the compound:
`CH_2 = CH - CH -= C - CH_3`

Explanation

To determine the IUPAC name of the compound `CH2 = CH - CH ≡ C - CH3`, we will follow a systematic approach based on the rules of nomenclature.

### Step-by-Step Solution:

1. **Identify the Structure**:
The compound can be represented as:
```
CH2 = CH - CH ≡ C - CH3
...