I know there's a bad tone to putting in gpt responses but I think it's fair here. Very basic checking on one of them from me (who doesn't really understand this area) this looks OK.
Yes, there are non-peptide molecules that interact with the oxytocin receptor. These small molecule agonists and antagonists have been synthesized and studied for their potential therapeutic applications. Some of these small molecules include:
WAY-267464: A synthetic small molecule agonist that has been shown to have potential antidepressant and anxiolytic effects in animal models.
L-368,899: A selective oxytocin receptor antagonist that has been used in research to help elucidate the physiological roles of oxytocin.
SSR-126768A: Another selective oxytocin receptor antagonist studied for its potential therapeutic applications.
These non-peptide molecules typically have a much lower molecular weight compared to peptide-based molecules and are less likely to have a strong smell. However, the smell of a molecule is influenced by various factors such as its chemical structure, volatility, and interactions with olfactory receptors. Therefore, it is challenging to determine the smell of these small molecules without conducting specific experiments.