Compounds of the formula ##STR1## wherein R and R.sup.o are lower alkyl, R' is optionally substituted phenyl or 2-thienyl and n is 0 to 2, and their salt forms, are prepared by reacting a compound of the formula: ##STR2## with an aromatic nitrile and strong base, and quenching with water when the free base form is desired, said first mentioned compounds being intermediates for quinazolinones.
式为##STR1##的化合物,其中R和R.sup.o为较低的烷基,R'为可选取代的苯基或2-
噻吩基,n为0至2,以及它们的盐形式,可通过将式为##STR2##的化合物与芳香族腈和强碱反应,并在需要自由碱形式时用
水淬灭来制备,所述第一提到的化合物是
喹唑啉酮的中间体。