Sun J, Li J, Sun H, Li C, Wu H. Concise Synthesis of Functionalized Cyclobutene Analogues for Bioorthogonal Tetrazine Ligation.
Molecules 2021;
26:E276. [PMID:
33429851 PMCID:
PMC7827859 DOI:
10.3390/molecules26020276]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2020] [Revised: 12/29/2020] [Accepted: 01/05/2021] [Indexed: 02/05/2023] Open
Abstract
Novel bioorthogonal tools enable the development of new biomedical applications. Here we report the concise synthesis of a series of aryl-functionalized cyclobutene analogues using commercially available starting materials. Our study demonstrates that cyclobutene acts as a small, strained dienophile to generate stable substrates suitable for bioorthogonal tetrazine ligation.
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