[Chemical constituents from the twigs and leaves of Melodinus suaveolens].
Zhong yao cai = Zhongyaocai = Journal of Chinese medicinal materials(2013)
摘要
OBJECTIVE:To investigate the chemical constituents from the twigs and leaves of Melodinus suaveolens.
METHODS:The chemical consituents were separated and purified by column chromatographies with silica gel, Sephadex LH-20, ODS and RP-HPLC. Their structures were identified on the basis of physicochemical properties and spectral analysis.
RESULTS:Ten compounds were isolated and identified as ursolic acid (1), 22alpha-hydroxyursolic acid (2), betulinic acid (3), betulinic alcohol (4), 2,3-dihydroxy-1-(4-hydroxy-3-methoxyphenyl) -propan-1-one (5), (+)-isolariciresinol (6), (+/-)-liquiritigenin (7), salicylic acid (8), beta-sitosterol (9) and daucosterol (10), respectively.
CONCLUSION:NMR spectra of compound 2 are reported for the first time, and compounds 1 - 10 are firstly isolated from this plant.
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关键词
chemical constituent,melodinus suaveolens champ.ex benth.,triterpenoid
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