Used primarily as an intermediate in the synthesis of proton pump inhibitors, this compound plays a key role in the development of anti-ulcer medications. It contributes to the creation of more stable and effective derivatives of omeprazole, enhancing gastric acid suppression in treatments for gastroesophageal reflux disease (GERD), peptic ulcers, and related conditions. Due to its modified methoxy structure, it allows fine-tuning of the drug's activation and binding properties in the acidic environment of the stomach, improving therapeutic precision and metabolic stability.