Quinazolinone and quinazolinedione derivatives are of considerable interest due to their wide array of pharmacological properties. In this paper we report the synthesis of ten quinazolinediones. The previous isolation of two of these compounds, namely 1-methyl-3-(2'-phenylethyl)-1H,3H-quinazoline-2,4-dione and 1-methyl-3-[2'-(4'- methoxyphenyl)ethyl]-lH,3H-quinazoline-2,4-dione, from the seed h...

In this study, new compounds of Schiff bases were prepared (1-6), from the reaction sulfamethoxazole with benzaldehyde derivatives. (1-6) converted to 1,3-Oxazepine-4,7-dione and 1,3-Benzooxazepine-4,7-dione derivatives (7-18) through maleic anhydride as well phthalic using crushing, grinding microwave irradiation method. The structures all have been identified by (I.R) technique, also some (1H...