Synthesis of Imidazolidin-4-ones via a Cytochrome P450-Catalyzed Intramolecular C−H Amination

Expanding Nature’s catalytic repertoire to include reactions important in synthetic chemistry opens new opportunities for biocatalysis. An intramolecular C–H amination route to imidazolidin-4-ones via α-functionalization of 2-aminoacetamides catalyzed by evolved variants of cytochrome P450BM3 (CYP10...

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Main Authors: Ren, X, O'Hanlon, J, Morris, M, Robertson, J, Wong, L
Format: Journal article
Published: American Chemical Society 2016
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author Ren, X
O'Hanlon, J
Morris, M
Robertson, J
Wong, L
author_facet Ren, X
O'Hanlon, J
Morris, M
Robertson, J
Wong, L
author_sort Ren, X
collection OXFORD
description Expanding Nature’s catalytic repertoire to include reactions important in synthetic chemistry opens new opportunities for biocatalysis. An intramolecular C–H amination route to imidazolidin-4-ones via α-functionalization of 2-aminoacetamides catalyzed by evolved variants of cytochrome P450BM3 (CYP102A1) from Bacillus megaterium has been developed. Screening of a library of ca. 100 variants based on four template mutants with enhanced activity for the oxidation of unnatural substrates and preparative scale reactions in vitro and in vivo show that the enzymes give up to 98% isolated yield of cyclization products for diverse substrates. 2-Aminoacetamides with one- and two-ring cyclic amines bearing substituents and aliphatic, alicyclic, and substituted aromatic amides are cyclized. Regiodivergent C–H amination was achieved at benzylic and nonbenzylic positions in a tetrahydroisoquinolinyl substrate by the use of different mutants. This C–H amination reaction offers a scalable route to imidazolidin-4-ones with varied functionalized substituents that may have desirable biological activity.
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spelling oxford-uuid:28f8e05a-a32a-4a2b-8d30-ed2b674c1f952022-03-26T12:16:21ZSynthesis of Imidazolidin-4-ones via a Cytochrome P450-Catalyzed Intramolecular C−H AminationJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:28f8e05a-a32a-4a2b-8d30-ed2b674c1f95Symplectic Elements at OxfordAmerican Chemical Society2016Ren, XO'Hanlon, JMorris, MRobertson, JWong, LExpanding Nature’s catalytic repertoire to include reactions important in synthetic chemistry opens new opportunities for biocatalysis. An intramolecular C–H amination route to imidazolidin-4-ones via α-functionalization of 2-aminoacetamides catalyzed by evolved variants of cytochrome P450BM3 (CYP102A1) from Bacillus megaterium has been developed. Screening of a library of ca. 100 variants based on four template mutants with enhanced activity for the oxidation of unnatural substrates and preparative scale reactions in vitro and in vivo show that the enzymes give up to 98% isolated yield of cyclization products for diverse substrates. 2-Aminoacetamides with one- and two-ring cyclic amines bearing substituents and aliphatic, alicyclic, and substituted aromatic amides are cyclized. Regiodivergent C–H amination was achieved at benzylic and nonbenzylic positions in a tetrahydroisoquinolinyl substrate by the use of different mutants. This C–H amination reaction offers a scalable route to imidazolidin-4-ones with varied functionalized substituents that may have desirable biological activity.
spellingShingle Ren, X
O'Hanlon, J
Morris, M
Robertson, J
Wong, L
Synthesis of Imidazolidin-4-ones via a Cytochrome P450-Catalyzed Intramolecular C−H Amination
title Synthesis of Imidazolidin-4-ones via a Cytochrome P450-Catalyzed Intramolecular C−H Amination
title_full Synthesis of Imidazolidin-4-ones via a Cytochrome P450-Catalyzed Intramolecular C−H Amination
title_fullStr Synthesis of Imidazolidin-4-ones via a Cytochrome P450-Catalyzed Intramolecular C−H Amination
title_full_unstemmed Synthesis of Imidazolidin-4-ones via a Cytochrome P450-Catalyzed Intramolecular C−H Amination
title_short Synthesis of Imidazolidin-4-ones via a Cytochrome P450-Catalyzed Intramolecular C−H Amination
title_sort synthesis of imidazolidin 4 ones via a cytochrome p450 catalyzed intramolecular c h amination
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AT ohanlonj synthesisofimidazolidin4onesviaacytochromep450catalyzedintramolecularchamination
AT morrism synthesisofimidazolidin4onesviaacytochromep450catalyzedintramolecularchamination
AT robertsonj synthesisofimidazolidin4onesviaacytochromep450catalyzedintramolecularchamination
AT wongl synthesisofimidazolidin4onesviaacytochromep450catalyzedintramolecularchamination