2(1H)-Quinazolinone and quinazolinethione derivatives having excellent pharmacological activities are produced in high yield with high purity by heating the corresponding 3,4-dihydro-2(1H)-quinazolinone or quinazolinethione derivatives together with sulfur in an inert solvent.
通过在惰性溶剂中加热相应的3,4-二氢-2(1H)-
喹唑啉酮或
喹唑啉硫醚衍
生物与
硫一起,可以高产高纯度地生产具有优异药理活性的2(1H)-
喹唑啉酮和
喹唑啉硫醚衍
生物。