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Three New Sesquiterpene Pyridine Alkaloids from Euonymus fortunei
Author(s) -
Da Yang Ying,
Yang Guang Zhong,
Liao Mao Chuan,
Mei Zhi Nan
Publication year - 2011
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.201000411
Subject(s) - chemistry , sesquiterpene , euonymus , pyridine , dept , stereochemistry , heteronuclear single quantum coherence spectroscopy , two dimensional nuclear magnetic resonance spectroscopy , organic chemistry , botany , biology
Abstract Three new macrocyclic β ‐dihydroagarofuran‐type sesquiterpene pyridine alkaloids, fortuneines A ( 1 ), B ( 2 ), and C ( 3 ), together with the four known alkaloids wilfornine E ( 4 ), aquifoliunine E‐I ( 5 ), euoverrine B ( 6 ), and euojaponine I ( 7 ), were isolated from the aerial parts of Euonymus fortunei. Their structures were elucidated by spectroscopic methods, including HR‐ESI‐MS, 1 H‐ and 13 C‐NMR, DEPT, 1 H, 1 H‐COSY, HSQC, HMBC, and ROESY. This is the first isolation of the above sesquiterpene pyridine alkaloids from this plant, except for compound 6 .