ALEXANDRIA, Va., June 2 -- United States Patent no. 12,643,901, issued on June 2, was assigned to The Provost, Fellows, Foundation Scholars, and the other members of Board, of the College of the Holy and Undivided Trinity of Queen Elizabeth, near Dublin (Dublin).

"Compounds" was invented by Stephen Connon (Dublin), Ursula Fearon (Dublin), Vincent Kelly (Dublin) and John Southern (Dublin).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention provides a compound of formula (I), or pharmaceutically acceptable salt or solvate thereof, wherein: Y is selected from C or N; X is O; bond a is a single or double bond; x is 1 when a is a single bond and x is 0 when a is a double bond; R1 is selected from ...