In the sentence extracted from biomedical literature, identify all the chemical entities. The required answer format is the same sentence with HTML <span> tags to mark up specific entities. 
### Entity Markup Guides:
Use <span class="chemical"> to denote a chemical.

### Input Text: Five hours after exposure , he developed disulfiram - like syndrome with flushing , tachycardia , and arterial hypotension after consuming three glasses of wine .
### Output Text:
Five hours after exposure , he developed <span class="chemical">disulfiram</span> - like syndrome with flushing , tachycardia , and arterial hypotension after consuming three glasses of wine . 