Résumé
Novel arylpyrrolo- and pyrazolopyrrolizinones with potential biological interest were prepared in an efficient manner from aminoarylpyrrole and pyrazole carboxylates.
Novel arylpyrrolo- and pyrazolopyrrolizinones were prepared in three or four steps starting from aminoarylpyrrole and pyrazole carboxylates through the cyclisation of a Vilsmeier–Haack intermediate. This synthesis was enhanced by diverse
N-protections of the aza-heterocycle and furnish new series with potential biological interest.