Iridoid and flavone glycosides from Asystasia gangetica subsp. micrantha and Asystasia salicifolia and their antioxidant activities

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► Four iridoid glycosides are new for the first time from the family Acanthaceae.
► The occurrence of iridoid and flavone glycosides was related to previous studies.
► The presence of rhamnopyranosyl-catapol may be useful for chemotaxonomic studies.