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学科主题: 生命有机化学
题名: An enzymatic [4+2] cyclization cascade creates the pentacyclic core of pyrroindomycins
其他题名: 酶催化[4+2]环加成串联反应创建吡咯吲哚酸的五环核心
作者: Tian ZH(田振华)1; Sun P(孙鹏)1; Yan Y(闫岩)1; Wu ZH(吴竹华)1; Zheng QF(郑庆飞)1; Zhou SX(周帅祥)1; Zhang H(张华)1; Yu FT(于福涛)1; Jia XY(贾新颖)1; Chen DD(陈单丹)1; MANDI ATTILA1; KURTAN TIBOR1; Liu W(刘文)1
通讯作者: 刘文
刊名: Nat. Chem. Biol.
发表日期: 2015
DOI: 10.1038/NCHEMBIO.1769
卷: 11, 期:4, 页:259-265
收录类别: SCI
文章类型: 论文
英文摘要: The [4+2] cycloaddition remains one of the most intriguing transformations in synthetic and natural products chemistry. In nature, however, there are remarkably few enzymes known to have this activity. We herein report an unprecedented enzymatic [4+2] cyclization cascade that has a central role in the biosynthesis of pyrroindomycins, which are pentacyclic spirotetramate natural products. Beginning with a linear intermediate that contains two pairs of 1,3-diene and alkene groups, the dedicated cyclases PyrE3 and PyrI4 act in tandem to catalyze the formation of two cyclohexene rings in the dialkyldecalin system and the tetramate spiro-conjugate of the molecules. The two cyclizations are completely enzyme dependent and proceed in a regio- and stereoselective manner to establish the enantiomerically pure pentacyclic core. Analysis of a related spirotetronate pathway confirms that homologs are functionally exchangeable, establishing the generality of these findings and explaining how nature creates diverse active molecules with similar rigid scaffolds.
语种: 英语
相关网址: 查看原文
WOS记录号: WOS:000351666500007
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.sioc.ac.cn/handle/331003/39494
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.中国人民解放军第二军医大学
3.湖州生物制造创新中心
4.匈牙利德布勒森大学

Recommended Citation:
Tian ZH,Sun P,Yan Y,et al. An enzymatic [4+2] cyclization cascade creates the pentacyclic core of pyrroindomycins[J]. Nat. Chem. Biol.,2015,11(4):259-265.
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