Synthesis 2022; 54(09): 2298-2308
DOI: 10.1055/a-1730-7983
paper

Convenient and General Synthesis of C-3-Substituted Het(aryl)indole C-Nucleoside Analogues from Sugar Alkynes

Xiang Zhou
a   Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou, Henan 450052, P. R. of China
,
Zhaoxin Cao
a   Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou, Henan 450052, P. R. of China
,
Qianxia Chen
a   Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou, Henan 450052, P. R. of China
,
Fuyi Zhang
a   Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou, Henan 450052, P. R. of China
,
Yufen Zhao
a   Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou, Henan 450052, P. R. of China
b   Institute of Drug Discovery Technology, Ningbo University, Ningbo, 315211, P. R. of China
› Institutsangaben

We gratefully acknowledge the National Natural Science Foundation of China (No. 21772180, 21272219) for financial support.


Abstract

The synthesis of C-3-substituted het(aryl)indole C-nucleoside analogues bearing structurally diverse sugar moieties has been achieved by Sonogashira coupling of terminal sugar alkynes with het(aryl) iodides followed by heteroannulation of the corresponding sugar/het(aryl) alkynes with substituted 2-iodoanilines. This method is simple and general and is suitable for structurally diverse sugars and various het(aryl) iodides. The terminal sugar alkynes include furanosides, pyranosides, and acyclic sugars with sensitive groups and bulky substituents. The het(aryl) iodides involve iodobenzene, iodothiophene, iodobenzothiophene, and iodobenzofuran. Thirty-one examples are presented and the corresponding 2-het(aryl)indole C-nucleoside analogues are obtained in moderate to excellent yields.

Supporting Information



Publikationsverlauf

Eingereicht: 30. November 2021

Angenommen nach Revision: 04. Januar 2022

Accepted Manuscript online:
04. Januar 2022

Artikel online veröffentlicht:
21. Februar 2022

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