US Patent Issued to PrimeGene (Beijing) on July 21 for "Process for the preparation of 2-{3-[3-amino-4-(7H-pyrrolo[2,3-dpyrimidin-4-yl)-1H-pyrazol-1-yl-1-(isopropylsulfonyl)azetidin-3-yl}acetonitrile" (Chinese Inventors)

ALEXANDRIA, Va., July 21 -- United States Patent no. 12,686,681, issued on July 21, was assigned to PrimeGene (Beijing) Co. Ltd. (Beijing).

"Process for the preparation of 2-{3-[3-amino-4-(7H-pyrrolo[2,3-dpyrimidin-4-yl)-1H-pyrazol-1-yl-1-(isopropylsulfonyl)azetidin-3-yl}acetonitrile" was invented by Sufeng Ma (Beijing), Junru Han (Beijing), Jin Wang (Beijing), Wei Hu (Beijing) and Li Zhu (Beijing).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present application relates to a preparation method for a pyrrolopyrimidine compound, comprising: obtaining a compound 3 from a compound 2, obtaining a compound 4P2 from the compound 3, and obtaining a pyrrolopyrimidine compound of formula I by removing a protectin...