You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Suppose there is a molecule that meets the following description: The molecule is a muscarinic antagonist. Please write the SMILES representation of it.
user
NC(Cc1cccnc1)C(=O)N1CCC(N2CCC(n3c(=O)[nH]c4ccccc43)CC2)CC1
assistant