Triterpenoids, Steroids, and Other Constituents of the Roots of Codonopsis pilosula.

The combined extract was concentrated under reduced pressure to afford a residue (4.9 kg), which was suspended in water and partitioned successively with ethyl acetate and I n i -butanol three times to obtain the ethyl acetate extract (298 g) and the I n i -butanol extract (201 g). HR-ESI-MS I m/z i 123.0442 [M + H] SP + sp (calcd for C SB 7 sb H SB 7 sb O SB 2 sb , 123.0441). HR-ESI-MS I m/z i 273.1122 [M + H] SP + sp (calcd for C SB 16 sb H SB 17 sb O SB 4 sb , 273.1121). In our phytochemical investigation, SP 1 sp H, SP 13 sp C NMR, and HR-ESI-MS spectra were used to identify all of the compounds. [Extracted from the article]

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