You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
I need a molecule that meets the following conditions: It belongs to the nmda receptor modulator class of molecules. Please represent the molecule in SMILES.
user
N#Cc1c(-c2ccc(C3(C(F)(F)F)CC3)cc2)nc2n(c1=O)CCCS2
assistant