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 histamine receptor antagonist. Please write the SMILES representation of it.
user
CC1CCCN1CCCN1CCN(CCCN2CCCC2CO)C1=C(C#N)C#N
assistant