Two alkaloids, belonging to benzylisoquinoline alkaloids, were isolated from Annona squamosa. One of these alka‑ loids, 6, 7-dimethoxy-1-(α-hydroxy-4-methoxybenzyl)-2-methyl-1, 2, 3, 4-tetrahydroisoquinoline, was isolated for the first time from natural sources, while, the alkaloid, Coclaurine was known in Annona squamosa L. | Anti cancer activity of new benzyl isoquinoline alkaloid from Saudi plant Annona squamosa