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 immunomodulator and belongs to the s1p1 agonist class of molecules, with the characteristic of being autoimmune treatment. Please represent the molecule in SMILES.
user
O=C(O)CC1CCCN(CC(O)c2ccc(-c3noc(-c4cnn(-c5ccc(F)cc5)c4C(F)(F)F)n3)cc2)C1
assistant