Mirabegron dehydroxy(Stage-III)

Mirabegron dehydroxy(Stage-III) is a structurally modified degradation product of Mirabegron, characterized by the oxidation of a hydroxyl group to a ketone within the benzimidazole core. This compound retains the piperazine side chain but exhibits altered electronic properties due to the dehydroxylation event, which introduces a carbonyl functionality adjacent to the imidazole ring. The transformation results in a rigid, planar scaffold with reduced hydrogen-bonding capacity compared to the parent drug. It serves as a critical HPLC reference standard for monitoring oxidative degradation pathways in Mirabegron formulations.