Synthesis of Enantiomerically Pure Ring-Substituted l-Pyridylalanines by Biocatalytic Hydroamination.
Synthesis of Enantiomerically Pure Ring-Substituted l-Pyridylalanines by Biocatalytic Hydroamination.
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通过生物催化加氢胺化合成对映体纯环取代的 l-吡啶丙氨酸。
DOI:
10.1021/acs.orglett.6b02559
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发表时间:
2016
期刊:
影响因子:
5.2
通讯作者:
Ahmed ST
中科院分区:
文献类型:
--
作者:
Ahmed ST
Current routes to nitrogen-containing heteroarylalanines involve complex multistep synthesis and are often reliant on protection/deprotection steps and wasteful chromatographic purifications. In order to complement existing methodologies, a convenient telescopic strategy was developed for the synthesis ofl-pyridylalanine analogues (12 examples) and otherl-heteroarylalanines (5 examples) starting from the corresponding aldehydes. A phenylalanine ammonia lyase (PAL) fromAnabaena variabiliswas used as the biocatalyst to give conversions ranging between 88 and 95%, isolated yields of 32–60%, and perfect enantiopurity (>99% ee) by employing an additional deracemization cascade where necessary.
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期刊:
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DOI:
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发表时间:
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期刊:
影响因子:
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