Example of iridoid glycosides Genistifolioside (from Linaria genistifolia L.) HO O O CH OH 2 HO OH 4 6 HO 5 H 7 3 8 9 2 O 1 O H O H C 3 O OH CH OH 2 HO OH 1-epi-5-O-alozilantirinoside