Used primarily in pharmaceutical research as an intermediate in the synthesis of serotonin-norepinephrine reuptake inhibitors (SNRIs). This benzothiazepine derivative plays a key role in the development of compounds targeting central nervous system disorders, particularly depression and anxiety. Its structure allows for selective modulation of neurotransmitter activity, making it valuable in optimizing drug efficacy and pharmacokinetic properties, including blood-brain barrier penetration, during preclinical development.