ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,747,254, issued on Sept. 29, was assigned to Hoffmann-La Roche Inc. (Branchburg, N.J.).

"Process for preparing heterocyclic pharmaceutical compounds" was invented by Jean-Michel Adam (Rosenau, France), Christophe Pfleger (Mulhouse, France) and Georg Wuitschik (Magden, Switzerland).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a process for the preparation of 7-(4.7-diazaspiro[2.5]octan-7-yl)-2-(2.8-dimethylimidazo[1.2-b]pyridazin-6-yl)pyrido[1.2-a]pyrimidin-4-one derivatives useful as pharmaceutically active compounds."

The patent was filed on Sept. 15, 2023, under Application No. 18/369,140.

*For further information,...