You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Can you create a molecule that matches the given characteristics? It belongs to the anti tussive class of molecules.
user
CC(=O)Oc1cccc(C23CCN(C)CC2CCC(N(CC(C)C)C(=O)c2ccc4ccccc4c2)C3)c1
assistant