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 that fulfills the requirement: The molecule is a tachykinin receptor antagonist and belongs to the histamine receptor antagonist class of molecules.
user
CCCOCCn1c(NC2CCN(CCC(CN(CC)C(=O)c3cc(OC)c(OC)c(OC)c3)c3ccc(OC)cc3)CC2)nc2ccccc21
assistant