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- Title
A New Sesquiterpene from Dendranthema grandiflora Flowers.
- Authors
Ragasa, Consolacion Y.; Si, Madeleine; Tan, Maria Carmen S.; Pelobello, Deanne Hazel; Don, Ming-Jaw; Shen, Chien-Chang
- Abstract
Chemical investigation of the dichloromethane extracts of the flowers of Dendranthema grandiflora cv. Yoko Ono afforded a new sesquiterpene lactone, grandiflorolide (1), 1,2-dilinoleoyl-3-linolenoylglycerol (2), a mixture of pseudotaraxasterol (3a), taraxasterol (3b), β-amyrin (3c), α-amyrin (3d), and lupeol (3e) in about 2:1:1:0.5:0.5 ratio, and another mixture of β-sitosterol (4a) and stigmasterol (4b) in about 2:1 ratio. The structure of 1 was elucidated by extensive 1D and 2D NMR spectroscopy, while those of 2–4b were identified by comparison of their NMR data with literature data.
- Subjects
ONO, Yoko, 1933-; CHRYSANTHEMUMS; NUCLEAR magnetic resonance spectroscopy; FLOWERS; SAUSSUREA; PHYTOSTEROLS
- Publication
Chemistry of Natural Compounds, 2020, Vol 56, Issue 3, p436
- ISSN
0009-3130
- Publication type
Article
- DOI
10.1007/s10600-020-03057-4