Abstract
Two new neolignan glycosides, named verticillatosides A and B were isolated from an ethanolic extract of whole plants of Pedicularis verticillata, along with the 11 known compounds, verbascoside, cistanosides C and D, 7-deoxy-8- epi-loganic acid, 8- epi-loganic acid, plantarenaloside, geniposidic acid, euphroside, aucubin, boschnaloside and caryoptoside. On the basis of spectral and chemical evidence, verticillatosides A and B were determined to be rel- (7 S,8 S)-Δ 7′-9,9′-dihydroxy-3,5′-dimethoxy-7- O-3′,8- O-4′-neolignan-4- O-β- d- glycoside and rel-(7 R,8 S)-Δ 7′-9,9′-dihydroxy-3,5′-dimethoxy-7- O-3′,8- O-4′-neolignan- 4- O-β- d-glycoside, respectively. 1997 © Elsevier Science Ltd. All rights reserved
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