Synthesis of dihydro-1,3-thiazine derivatives. III

2-Carbamoylimino- and 2-thiocarbamoylimino-4-oxo-3,4-dihydro-2H-benzo[e]-1,3-thiazine derivatives were obtained by condensation of thiosalicylic acid with 3-alkyl(aryl)-substituted cyanoureas and cyanothioureas. 2-Hydroxy-3-mercaptoquinoline-4-carboxylic acid reacts similarly.See [1] for communication II.Deceased.Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 5, pp. 644–646, May, 1973.