A ring expansion approach to N-oxy-2,5-diketopiperazines

Tetrahedron Letters(2022)

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摘要
A ring expansion of tetramic acids (pyrrolidine-2,4-diones) to N-oxy-2,5-diketopiperazines (DKPs) is described. This method allows for the facile and late-stage construction of the hydroxamic acid moiety and can thereby serve as a general method for accessing N-oxy-2,5-DKP natural products.
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