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 both a pd1/pdl1 inhibitor and a immunomodulator. Please represent the molecule in SMILES.
user
COc1cccc(-c2cccc3c2CCC3Oc2cc(OCc3cncc(C#N)c3)c(CNC(CO)C(=O)O)cc2Cl)c1F
assistant