You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Generate a molecule based on this description: The molecule is c5a receptor modulator.
user
CCCCn1c(-c2ccccc2)nc(-c2ccccc2)c1CN(Cc1ccc(OC)cc1)Cc1cccc(OC)c1
assistant