The invention relates to a
hydrochloride of 4-[(5-chloropyridine-2-yl) methoxy]-1-[3-(propan-2-yl)-1H, 2H, 3H, 4H, 5H-[1, 4] diazacyclohepta [1, 7-a] indol-9-yl]-1, 2-
dihydropyridine-2-one (compound 1), a preparation method of the
hydrochloride, and a preparation method of the
hydrochloride. The pharmaceutical composition can be used for treating and / or preventing
obesity, co-diseases and complications related to
obesity, diabetes, metabolic disorders, coronary
artery diseases, cerebrovascular diseases,
peripheral artery diseases, hypertension, endocrine
dyscrasia, mental disorders, personality disorders,
eating disorders, sleep-awakening cycle disorders,
substance abuse and
addiction disorders, chronic
liver and kidney diseases, and the like. Potent oral active selective
melanin aggregation
hormone receptor 1 (MCHR1) antagonists for treating diseases of the
gastrointestinal tract, chronic diseases of the musculoskeletal
system,
osteoporosis,
cancer, and one or more symptoms of Prallard-Wili Syndrome (PWS) or PWS. The present invention also relates to crystalline forms of 4-[(5-chloropyridin-2-yl) methoxy]-1-[3-(propan-2-yl)-1H, 2H, 3H, 4H, 5H-[1, 4] diazepane [1, 7-a] indol-9-yl]-1, 2-dihydropyridin-2-one in the form of a
free base, different crystalline forms of the hydrochloride thereof, processes for their preparation, pharmaceutical compositions thereof and therapeutic uses thereof.