A new diarylheptanoid, (5S)-1,7-bis-(3,4-dihydroxyphenyl)-5-hydroxyheptan-3-one-5-O-β-D-6-Oacetylglucoside (1), together with two known diarylheptanoids, (5S)-1,7-bis-(3,4-dihydroxyphenyl)-5-hydroxyheptan-3-one-5-O-β-D-glucopyranoside (2) and hirsutanonol (3), were isolated from Saxifraga tangutica. The structures of 1–3 were elucidated using 1D and 2D NMR spectral data, including high-resolution mass spectra (HR-ESI-MS). It was found that the new compound was acetyl-substituted (5S)-1,7-bis-(3,4-dihydroxyphenyl)-5-hydroxyheptan-3-one-5-O-β-D-glucopyranoside.
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Acknowledgment
This work was supported by the Key Projects in the National Science & Technology Pillar Program in the Twelfth Five-Year Plan (2012BAI29B08), the Significant Science & Technological Project of Qinghai Province (2014-GX-A3A), and the West Light Foundation of the Chinese Academy of Sciences for Doctors (2014).
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Published in Khimiya Prirodnykh Soedinenii, No. 1, January–February, 2017, pp. 42–43.
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Dang, J., Zhao, JQ., Tao, YD. et al. A New Diarylheptanoid from Saxifraga tangutica . Chem Nat Compd 53, 48–50 (2017). https://doi.org/10.1007/s10600-017-1908-4
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DOI: https://doi.org/10.1007/s10600-017-1908-4