A comprehensive approach to the photochemical synthesis of bioactive compounds by the reaction of oxazolidine, thiazolidine and pyrazolidine derivatives with indol-2,3-diones

The reactions of indol-2,3-dione derivatives with 3-phenyl-5-isoxazolone, 2-thiazoline-2-thiol, 1-phenyl-3-methyl-5-pyrazolone under photochemical conditions have been described. The UV light-induced irradiation mainly produced benzazepine and quinoline carboxylic acid derivatives. The products have been characterized on the basis of spectral data and elemental analyses.