1. Three New Sesquiterpene Pyridine Alkaloids from Euonymus fortunei
- Author
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Mao Chuan Liao, Guangzhong Yang, Zhi Nan Mei, and Ying Da Yang
- Subjects
biology ,Stereochemistry ,Organic Chemistry ,DEPT ,biology.organism_classification ,Sesquiterpene ,Biochemistry ,Euonymus fortunei ,Catalysis ,Inorganic Chemistry ,chemistry.chemical_compound ,chemistry ,Drug Discovery ,Pyridine ,Organic chemistry ,Physical and Theoretical Chemistry - 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, 1H- and 13C-NMR, DEPT, 1H,1H-COSY, HSQC, HMBC, and ROESY. This is the first isolation of the above sesquiterpene pyridine alkaloids from this plant, except for compound 6.
- Published
- 2011