US Patent Issued to Sumitomo Pharma on Aug. 26 for "Nitrogen-containing saturated heterocyclyl derivative" (Japanese Inventors)

ALEXANDRIA, Va., Aug. 26 -- United States Patent no. 12,398,125, issued on Aug. 26, was assigned to Sumitomo Pharma Co. Ltd. (Osaka, Japan).

"Nitrogen-containing saturated heterocyclyl derivative" was invented by Hitoshi Watanabe (Osaka, Japan), Shuya Yamada (Osaka, Japan), Katsushi Kitahara (Osaka, Japan) and Mariko Kobayashi (Osaka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a medicament for treating or preventing central nervous system disease whose cause is related to abnormal aggregation of proteins in the brain, which comprises as an active ingredient a compound of formula (1) or a pharmaceutically acceptable salt thereof, wherein R1 and R2 are hydrogen, etc.,...