Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the development of vasopressin receptor antagonists. It plays an important role in creating compounds that treat conditions like hyponatremia and heart failure due to its ability to modulate water reabsorption in the kidneys. Its structure allows for selective binding and improved metabolic stability in drug candidates. Also employed in research settings for designing novel bioactive molecules and optimizing drug potency and pharmacokinetics.