You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Based on the given information, generate a molecule that meets the desired specifications: The molecule is a anti tussive.
user
C=CCN1CCC23c4c5c(O)cc(OC)c4OC2C(N(CC(C)C)C(=O)C=Cc2cc(Br)cs2)CCC3C1C5
assistant