Structure elucidation and NMR assignment of two new eudesmane derivatives from Merremia yunnanensis. (30th May 2019)

• Record Type: Journal Article
• Authors: Li, Qian; Yuan, Mingrui; Li, Jinyu; Wei, Di; Mei, Shuangxi; Cui, Tao; Wang, Jingkun; Zhu, Zhaoyun; Dong, Xun; Wan, Jinfu
• Is Part Of: Magnetic resonance in chemistry. Volume 57:Number 11(2019)
• Page Start: 934
• Page End: 938
• Publication Date: 2019-05-30
• Subjects: eudesmane sesquiterpene -- Merremia family -- Merremia yunnanensis; Nuclear magnetic resonance spectroscopy -- Periodicals; Chemistry, Organic -- Periodicals; Magnetic resonance -- Periodicals; 538.36
• DOI: 10.1002/mrc.4884
• Languages: English
• ISSNs: 0749-1581

Abstract

Abstract: 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 . Abstract : 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 structure was elucidated by analysis of its spectroscopic data including HR‐EI‐MS, 1D, and 2D NMR.