Automated Solution-Phase Synthesis of β-1,4-Mannuronate and β-1,4-Mannan.

Automated Solution-Phase Synthesis of β-1,4-Mannuronate and β-1,4-Mannan.
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DOI:
10.1021/acs.orglett.5b01013
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发表时间:
2015-06-05
期刊:
影响因子:
5.2
通讯作者:
Pohl, Nicola L. B.
Pohl, Nicola L. B.
中科院分区:
化学1区
文献类型:
--
作者:
Tang, Shu-Lun;Pohl, Nicola L. B.

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The first automated solution-phase synthesis of β-1,4-mannuronate and β-1,4-mannan oligomers has been accomplished by using a β-directing C-5 carboxylate strategy. By utilizing fluorous-tag assisting purification after repeated reaction cycles, β-1,4-mannuronate was synthesized up to a hexasaccharide with limited loading of a glycosyl donor (up to 3.5 equiv) for each glycosylation cycle due to the homogeneous solution-phase reaction condition. After a global reduction of the uronates, the β-1,4-mannan hexasaccharide was obtained, thereby demonstrating a new approach to β-mannan synthesis.
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