You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Come up with a molecule based on the description: The molecule is a histamine h3 receptor modulator.
user
O=C(CN1CCn2c(cc3nc(N4CCOCC4)ncc32)C1)N1CCN(C2CCC2)CC1
assistant