You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
I need a molecule that meets the following conditions: The molecule is a pain treatment and belongs to the serotonin agonist class of molecules. Please represent the molecule in SMILES.
user
CCCCCCN(CCCCCC)[Al](N(CCCCCC)CCCCCC)N(CCCCCC)CCCCCC.[Li]
assistant