Abstract
A microwave-assisted DABCO-promoted strategy for the regioselective synthesis of pyrrolo[3,4-b]pyridine-4-one derivatives has been developed from the [3 + 3] annulation of α-aminomaleimide with substituted ethyl 2-butynoate. The characteristic features of this methodology include operational simplicity, high regioselectivity, metal-free reaction conditions, and short reaction times. The potential utility of these methods in biological chemistry and medicinal science applications is highlighted.
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