Bioactive Dimeric Carbazole Alkaloids from <i>Murraya koenigii</i>

Phytochemical studies on the CHCl₃ extract of the fruit pulp of <i>Murraya koenigii</i> afforded three new dimeric carbazole alkaloids, bisgerayafolines A–C (<b>1</b>–<b>3</b>). Bisgerayafolines A–C (<b>1</b>–<b>3</b>) are structurally unique dimeric carbazole alkaloids comprising geranyl moieties incorporated in their structures. Compounds <b>1</b>–<b>3</b> exhibited various levels of antioxidant, anti-α-glucosidase, DNA binding, and cytotoxic activities and protein interactions