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 anti tussive. Please represent the molecule in SMILES.
user
COc1cccc(C23CCN(CC4CC4)CC2C(OC)CC(N(C)C(=O)c2ccccc2)C3)c1
assistant