Carboxymethylproline synthase catalysed syntheses of functionalised N-heterocycles
作者:Refaat B. Hamed、Jasmin Mecinović、Christian Ducho、Timothy D. W. Claridge、Christopher J. Schofield
DOI:10.1039/b924519g
日期:——
The utility of wild-type and variant carboxymethylproline synthases for biocatalysis was demonstrated by preparing functionalised 5-, 6- and 7-membered N-heterocycles from amino acid aldehydes and (alkylated) malonyl-coenzyme A derivatives; the N-heterocycles produced were converted to the corresponding bicyclic β-lactams by a carbapenem synthetase.
通过从氨基酸醛和(烷基化)丙二酰辅酶 A 衍生物制备功能化的 5、6 和 7 元 N-杂环,证明了野生型和变异型羧甲基脯氨酸合成酶在生物催化方面的用途;生成的 N-杂环通过碳青霉烯合成酶转化为相应的双环 β-内酰胺。
Stereoselective C–C bond formation catalysed by engineered carboxymethylproline synthases
作者:Refaat B. Hamed、J. Ruben Gomez-Castellanos、Armin Thalhammer、Daniel Harding、Christian Ducho、Timothy D. W. Claridge、Christopher J. Schofield
DOI:10.1038/nchem.1011
日期:2011.5
enabling stereoselective C–C bond formation leading to N-heterocycles via control of trisubstituted enolate intermediates. Active site substitutions, including at the oxyanion binding site, enable the production of substituted N-heterocycles in high diastereomeric excesses via stereocontrolled enolate formation and reaction. The results reveal the potential of the ubiquitous crotonase superfamily as