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学科主题: 生命有机化学
题名: Total synthesis of periploside A, a unique pregnane hexasaccharide with potent immunosuppressive effects
其他题名: 具有免疫抑制活性的杠柳孕甾苷Periploside A的全合成
作者: Zhang XH(张夏衡)1; ZHOU YU1; Zuo JP(左建平)1; Yu B(俞飚)1
通讯作者: 俞飚
刊名: Nat. Commun.
发表日期: 2015
DOI: 10.1038/ncomms6879
卷: 6, 页:5879
收录类别: SCI
文章类型: 论文
英文摘要: Periploside A is a pregnane hexasaccharide identified from the Chinese medicinal plant Periploca sepium, which features a unique seven-membered formyl acetal bridged orthoester (FABO) motif and potent immunosuppressive activities. Here, we show the synthesis of this molecule in a total of 76 steps with the longest linear sequence of 29 steps and 9.2% overall yield. The FABO motif is constructed via a combination of Sinay's and Crich's protocol for the formation of orthoester and acetal glycosides, respectively. The 2-deoxy-beta-glycosidic linkages are assembled stereoselectively with judicious choice of the glycosylation methods. The epimer at the spiro-quaternary carbon in the FABO motif has also been elaborated in a stereo-controlled manner. This epimer, as well as the synthetic analogues bearing the FABO motif, retain largely the inhibitory activities of periploside A against the proliferation of T-lymphocyte, indicating the importance of the chemical connection of the FABO motif to their immunosuppressive activity.
语种: 英语
相关网址: 查看原文
WOS记录号: WOS:000348702400003
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内容类型: 期刊论文
URI标识: http://ir.sioc.ac.cn/handle/331003/39481
Appears in Collections:生命有机化学国家重点实验室_期刊论文

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作者单位: 1.中科院上海有机化学研究所, 生命有机化学国家重点实验室
2.中科院上海药物研究所

Recommended Citation:
Zhang XH,ZHOU YU,Zuo JP,et al. Total synthesis of periploside A, a unique pregnane hexasaccharide with potent immunosuppressive effects[J]. Nat. Commun.,2015,6:5879.
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