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Structure elucidation and NMR assignment of two new eudesmane derivatives from Merremia yunnanensis
Author(s) -
Li Qian,
Yuan Mingrui,
Li Jinyu,
Wei Di,
Mei Shuangxi,
Cui Tao,
Wang Jingkun,
Zhu Zhaoyun,
Dong Xun,
Wan Jinfu
Publication year - 2019
Publication title -
magnetic resonance in chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.483
H-Index - 72
eISSN - 1097-458X
pISSN - 0749-1581
DOI - 10.1002/mrc.4884
Subject(s) - chemistry , two dimensional nuclear magnetic resonance spectroscopy , stereochemistry
Two new eudesmane derivatives, 1 α ,6 β ,9 β ‐trihydroxy‐eudesm‐3‐ene‐1‐ O ‐ β ‐ d ‐glucopyranoside ( 1 ) and 1 α ,6 β ,9 β ‐trihydroxy‐eudesm‐3‐ene‐1‐(6‐cinnamoyl)‐ O ‐ β ‐ d ‐glucopyranoside ( 2 ) were discovered from Merremia yunnanensis . The structures were elucidated by analysis of their spectroscopic data including HR‐ESI‐MS, 1D, and 2D NMR. It should be noted that this is the first report about structure elucidation and NMR assignment of compounds from M . yunnanensis .