The derivatives of the barbituric acid have been widely used as a sedative, hypnotic, anesthetic, anticonvulsant, antiosteoporosis, as well as an antitumor agent.1 View all references Arylidene (2??thio)barbituric acids are useful intermediates in synthesis of benzylbarbituric derivatives,[2]3. Frangin , Y. , Guimbal , C. , Wissocq , F. and Zamarlik , H. 1986. Synthesis of substituted barbituric acid via organozinc reagents. Synthesis, : 1046–1050.