You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
It belongs to the paf antagonist class of molecules. Use the above information to create a molecule.
user
CCCCCCCCCCCCCCCCCCNC(=O)OCC1(COC(=O)CCCCC[n+]2ccsc2)CSC1.[Br-]
assistant