Research in 7-aminoindazole series: Synthesis of new halo-7H-4-methylpyrazolo[1,5,4-ef][1,5]benzodiazepin-6-ones and 5H-9-halo-6-methylpyrazolo[1,5,4-ef][1,5]benzodiazepin-4-ones
A new class of 7-aminohaloindazoles has been synthesized. Reactivity of the amino groups of these bicyclic systems has been investigated. The halogenated pyrazolo-1,5-benzodiazepinones have been synthesized by the condensation of 7-aminoindazoles with ethyl acetoacetate.