You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
I give you a description of a molecule, and you need to return one molecule in SMILES that meets the description. The description: The molecule is anti convulsant.
user
O=P(O)(O)CCc1c(Cl)ccc2ncc(P(=O)(O)O)n12
assistant