Biocatalytic, stereoconvergent alkylation of (Z/E)-trisubstituted silyl enol ethers
Biocatalytic, stereoconvergent alkylation of (Z/E)-trisubstituted silyl enol ethers
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(Z/E)-三取代硅基烯醇醚的生物催化立体收敛烷基化
DOI:
10.1038/s44160-023-00431-2
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发表时间:
2024
期刊:
影响因子:
--
通讯作者:
Arnold, Frances H.
中科院分区:
文献类型:
--
作者:
Mao, Runze;Taylor, Doris Mia;Wackelin, Daniel J.;Rogge, Torben;Wu, Sophia J.;Sicinski, Kathleen M.;Houk, K. N.;Arnold, Frances H.
The selective conversion of mixtures ofZ/Ealkenes into chiral products is a synthetic challenge. Biocatalytic strategies can transform isomeric alkenes into stereopure compounds, but enzymes typically convert only one alkene isomer, limiting the overall yield. Additional strategies have been used to interconvert alkene isomers, often at the cost of increasing energy consumption and chemical waste. Here we present engineered haemoproteins derived from a bacterial cytochrome P450 that efficiently catalyse α-carbonyl alkylation of isomeric silyl enol ethers, producing stereopure products. Through screening and directed evolution, we generated P450BM3variant P411-SCA-5188, which catalyses stereoconvergent carbene transfer inEscherichia coliwith high efficiency and stereoselectivity to variousZ/Emixtures of silyl enol ethers. In contrast to established stereospecific transformations that leave one isomer unreacted, P411-SCA-5188 converts both isomers to a stereopure product. This biocatalytic approach simplifies the synthesis of chiral α-branched ketones by eliminating the need for stoichiometric chiral auxiliaries, strongly basic alkali-metal enolates and harsh conditions, delivering products with high efficiency and excellent chemo- and stereoselectivities.
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影响因子:
62.1
作者:
Bhat V;Welin ER;Guo X;Stoltz BM
通讯作者:
Stoltz BM
影响因子:
21.8
作者:
Prier CK;Zhang RK;Buller AR;Brinkmann-Chen S;Arnold FH
通讯作者:
Arnold FH
DOI:
--
发表时间:
1997
期刊:
影响因子:
--
作者:
W. Kroutil;M. Mischitz;K. Faber
通讯作者:
K. Faber
影响因子:
5.2
作者:
Yanto, Yanto;Winkler, Christoph K.;Bommarius, Andreas S.
通讯作者:
Bommarius, Andreas S.
DOI:
10.21203/rs.3.rs-2802333/v1
发表时间:
2023
期刊:
Research square
影响因子:
--
作者:
Mao,Runze;Wackelin,DanielJ;Jamieson,CooperS;Rogge,Torben;Gao,Shilong;Das,Anuvab;Taylor,DorisMia;Houk,KN;Arnold,FrancesH
通讯作者:
Arnold,FrancesH