A diversity‐oriented approach comprising an Ugi 4‐component reaction and a copper‐catalyzed tandem azide–alkyne cycloaddition/Ullmann C–N coupling is elaborated. The methodology is compatible with various functional groups and allows the construction of triazolo[1,5‐a][1,4]benzodiazepinones in good yields.
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Vachhani et al. (2013) studied this question.
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