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Two New C 21 Steroidal Glycosides from the Stems of Marsdenia tenacissima
Author(s) -
Zhang Hua,
Tan AiMin,
Feng Feng,
Yang ShiBao,
Zhang AnYuan,
Huang Xin
Publication year - 2008
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.200890161
Subject(s) - chemistry , pregnane , glycoside , stereochemistry , mass spectrometry , chromatography
Two new pregnane glycosides, (3 β ,5 α ,12 β ,14 β ,17 α )‐3‐( β ‐cymaropyranosyloxy)‐8,14,17,20‐tetrahydroxypregnan‐12‐yl benzoate ( 1 ) and (3 β ,5 α ,12 β ,14 β ,17 α )‐3‐( β ‐cymaropyranosyloxy)‐8,14,17,20‐tetrahydroxypregnan‐12‐yl cinnamate ( 2 ) were isolated from the stems of Marsdenia tenacissima. The structures and relative configurations of the new compounds were elucidated by spectroscopic methods, including mass spectrometry and NMR spectroscopy.