New iridoids from Asperula maximowiczii.
Three new dimeric iridoid glucosides, named asperuloides A (1), B (2), and C (3), were isolated from Asperula maximowiczii, along with the known compound picconioside II. The structures of the new compounds were determined by spectroscopic and chemical methods and by the single-crystal X-ray diffraction analysis of 1.
D002851:Chromatography, High Pressure Liquid; D018360:Crystallography, X-Ray; D039823:Iridoids / Q000737:chemistry / Q000302:isolation & purification*; D007723:Korea; D008968:Molecular Conformation; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D010936:Plant Extracts / Q000737:chemistry*; D019666:Rubiaceae / Q000737:chemistry*; D017550:Spectroscopy, Fourier Transform Infrared
D039823:Iridoids; D010936:Plant Extracts; C470525:asperuloide A; C470527:asperuloide B; C470526:asperuloide C