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The first total synthesis of rebaudioside R
被引:6
|作者:
Wen, Guo-En
[1
]
Qiao, Zhi
[1
]
Liu, Hui
[1
]
Zeng, Zhiyong
[1
]
Tu, Yuan-Hong
[1
]
Xia, Jian-Hui
[1
]
Zhang, Qing-Ju
[1
]
Sun, Jian-Song
[1
]
机构:
[1] Jiangxi Normal Univ, Natl Res Ctr Carbohydrate Synth, 99 Ziyang Ave, Nanchang 330022, Jiangxi, Peoples R China
基金:
中国国家自然科学基金;
关键词:
STEVIA-REBAUDIANA BERTONI;
DITERPENE GLYCOSIDES;
GLYCOSYLATION;
STEVIOSIDE;
OLIGOSACCHARIDES;
ALKYNYLBENZOATES;
D O I:
10.1039/c9ob02422k
中图分类号:
O62 [有机化学];
学科分类号:
070303 ;
081704 ;
摘要:
With easily available monosaccharides and steviol as starting materials, the first total synthesis of rebaudioside R with a xylosyl core in the C13-OH linked sugar chain was accomplished via two distinct approaches. The first approach features the stepwise installation of branch-sugar residues via an order of C2-OH first and then C3-OH of the xylosyl core, laying a firm foundation for the synthesis of analogues with different branch sugars, while the second route features the introduction of the C13 trisaccharide sugar chain via a convergent strategy, securing the overall synthetic efficiency. Through the synthetic study, the effect of protecting groups (PGs) at the vicinal hydroxy group on the reactivity of OH acceptors was illustrated.
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页码:108 / 126
页数:19
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