You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Generate a molecule based on this description: The molecule is a gpr40 agonist.
user
C=C(C)c1nc(COc2cccc(C(CC(=O)OCC)C3CC3)c2)cnc1-c1cc(C)ccc1F
assistant