The present disclosure relates to compounds of Formula (I’): , and to their prodrugs, pharmaceutically acceptable salts, pharmaceutical compositions, methods of use, and methods for their preparation. The compounds disclosed herein are useful for modulating orexin-2
receptor activity and may be used in the treatment of disorders in which orexin-2
receptor activity is implicated, such as
narcolepsy, a hypersomnia disorder, a neurodegenerative disorder, a symptom of a rare
genetic disorder, a
mental health disorder, a
metabolic syndrome,
osteoporosis, cardiac failure,
coma, or facilitating emergence from anaesthesia.