US Patent Issued to Rigel Pharmaceuticals on Sept. 29 for "Method of preparing Pralsetinib" (Dutch, American Inventors)

ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,747,226, issued on Sept. 29, was assigned to Rigel Pharmaceuticals Inc. (South San Francisco, Calif.).

"Method of preparing Pralsetinib" was invented by Joshua Waetzig (Cambridge, Mass.), Gordon D. Wilkie (Cambridge, Mass.), Vincent Poral (Groningen, Netherlands) and Albert Cornelis Dros (Groningen, Netherlands).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided herein, in part, are compounds and compositions useful for preparing pralsetinib. Also provided herein are processes for preparing pralsetinib."

The patent was filed on Dec. 3, 2021, under Application No. 18/255,402.

*For further information, including images, charts and tables, please vi...