US Patent Issued to NANCHANG DOUBLE ANGEL BIOTECHNOLOGY DEVELOPMENT on Dec. 30 for "Preparation and application of deuterated 4-phenyl-4-piperidinols" (Chinese Inventors)

ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,509,421, issued on Dec. 30, was assigned to NANCHANG DOUBLE ANGEL BIOTECHNOLOGY DEVELOPMENT Co. LTD. (Nanchang, China).

"Preparation and application of deuterated 4-phenyl-4-piperidinols" was invented by Zhenghong Cao (Nanchang, China), Meimei Fan (Nanchang, China) and Jiumei Wu (Nanchang, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to the preparation and application of deuterated 4-phenyl-4-piperidinols, the general structural formula of which is represented by formula (I) or formula (II). The present invention also discloses the preparation and application of these compounds, and pharmaceutically acceptable salts and pha...