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- Title
Stereodivergent Evolution of Artificial Enzymes for the Michael Reaction.
- Authors
Garrabou, Xavier; Macdonald, Duncan Stuart; Wicky, Basile I. M.; Hilvert, Donald
- Abstract
Abstract: Enzymes are valuable biocatalysts for asymmetric synthesis due to their exacting stereocontrol. Changing the selectivity of an existing catalyst for new applications is, however, challenging. Here we show that, in contrast, the stereoselectivity of an artificial enzyme created by design and directed evolution is readily tunable. We engineered a promiscuous artificial retro‐aldolase into four stereocomplementary catalysts for the Michael addition of a tertiary carbanion to an unsaturated ketone. Notably, this selectivity is also preserved with alternative Michael nucleophiles. Complete stereodiversification of other designer enzymes should similarly be possible by extension of these approaches.
- Subjects
MICHAEL reaction; SYNTHETIC enzymes; ASYMMETRIC synthesis; STEREOSELECTIVE reactions; KETONES
- Publication
Angewandte Chemie, 2018, Vol 130, Issue 19, p5386
- ISSN
0044-8249
- Publication type
Article
- DOI
10.1002/ange.201712554