ISOPROPYL-12-AROYL-2-HYDROXY-1,6-DIOXO-4-(3-PYRIDINYL)-7-PHENYL-1,3,6,7-TETRAHYDRO-2,5alpha-METHANO[1,4]DIAZEPINO[1,7alpha]-QUINOXALINE-5-CARBOXYLATES AND METHOD FOR THEIR PREPARING

FIELD: organic chemistry. ^ SUBSTANCE: invention relates to novel individual compounds of series 2,5a-methano[1,4]diazepino[1,7-a]-quinoxaline-5-carboxylates, namely, to isopropyl-12-aroyl-2-hydroxy-1,6-dioxo-4-(3-pyridinyl)-7-phenyl-1,3,6,7-tetrahydro-2,5a-methano[1,4]diazepino[1,7-a]-quinoxaline-5-carboxylates of the formula (1) wherein Ar means phenyl or p-methoxyphenyl, and to a method for their synthesis. Method for synthesis of compound of the formula (1) involves interaction of 3-aroyl-5-phenylpyrrolo[1,2-a]-quinoxaline-1,2,4(5H)-triones with isopropyl-3-amino-3-(3-pyridinyl)-2-propenoate in an inert aprotonic solvent medium and the following isolation of end substances. The proposed method provides synthesis of novel compounds of the formula (1) possessing antibacterial effect with high yield and selectivity. ^ EFFECT: improved method of synthesis. ^ 4 cl, 1 tbl, 3 ex