US Patent Issued to Eisai R&D Management on Dec. 30 for "Quinoline derivative-containing pharmaceutical composition" (Japanese Inventor)

ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,508,313, issued on Dec. 30, was assigned to Eisai R&D Management Co. Ltd. (Tokyo).

"Quinoline derivative-containing pharmaceutical composition" was invented by Masashi Bando (Kakamigahara, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A pharmaceutical composition comprising a compound represented by the formula (I) or pharmaceutically acceptable salt thereof or solvate thereof; and a basic substance is excellent in dissolution, is stable even after a long term storage, and is useful as a preventive or therapeutic agent against a tumor:wherein, R1 is a hydrogen atom, a C1-6 alkyl group or a C3-8 cycloalkyl group; and R2 is a hydrogen atom or a met...