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Chemical structures of constituents from the whole plant of Bacopa monniera

Abstract

Two new dammarane-type triterpene oligoglycosides, bacomosaponins A and B, and three new phenylethanoid glycosides, bacomosides A, B1, and B2, were isolated from the whole plant of Bacopa monniera Wettst. The chemical structures of the new constituents were characterized on the basis of chemical and physicochemical evidence. In the present study, bacomosaponins A and B with acyl groups were obtained from the whole plant of B. monniera. This is the first report of acylated dammarane-type triterpene oligoglycosides isolated from B. monniera. In addition, dammarane-type triterpene saponins significantly inhibited the aggregation of 42-mer amyloid β-protein.

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Correspondence to Hisashi Matsuda.

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Ohta, T., Nakamura, S., Nakashima, S. et al. Chemical structures of constituents from the whole plant of Bacopa monniera . J Nat Med 70, 404–411 (2016). https://doi.org/10.1007/s11418-016-0986-0

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Keywords

  • Bacopa monniera
  • Bacomosaponin
  • Bacomoside
  • 42 aggregation
  • Ayurvedic traditional medicine