You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Based on the given information, generate a molecule that meets the desired specifications: The molecule is a nmda antagonist.
user
O=C(Nc1ccc2c(c1)C13CCCCC1(CC2)OC(=NS(=O)(=O)Cl)C3)c1ccccc1
assistant