ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,747,239, issued on Sept. 29, was assigned to CHUGAI SEIYAKU K.K. (Tokyo).

"Nitrogen-containing heterocyclic compound having MYT1 inhibitory activity" was invented by Toshihiro Aoki (Tokyo), Takashi Chiba (Yokohama City, Japan), Masami Kochi (Yokohama City, Japan), Masaki Tomizawa (Yokohama City, Japan), Yoshihisa Murata (Yokohama City, Japan) and Eigo Suyama (Yokohama City, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a compound having new MYT1 inhibitory activity or a salt thereof, or a solvate thereof.A compound represented by the formula (1): wherein R4 is selected from the group consisting of optionally substituted C6-C10 aryl (...