| abstract |
PROBLEM TO BE SOLVED: To provide a compound, a form thereof, and a pharmaceutical composition for treating or ameliorating Huntington's disease, and a method for using the compound, the form thereof, or the pharmaceutical composition. SOLUTION: Provided are a substituted monocyclic heteroaryl compound of formula (I), a form thereof, and a pharmaceutical composition for treating or ameliorating Huntington's disease, and a method of using the compound, the form, or the composition. (I) [Selection diagram] None |