Phytochemical and Bioactivity Evaluation of Scrophularia amplexicaulis Benth.

Scrophularia amplexicaulis Benth. is an Iranian endemic species of the genus Scrophularia, which comprises ca. 200 medicinally important herbaceous flowering plants . Phytochemical investigation of the methanol extract of the aerial parts of this species afforded two iridoid glycosides, scropolioside D (1) and scrophuloside B 4 (2), and two phenylalkanoid glycosides, salidroside (3) and verbascoside (4). S tructures of these compounds were determined by comprehensive spectroscopic analyses. Free-radical-scavenging activity, potential antimalarial property, and contact toxicity as well as general toxicity of the extract and fractions were assessed