期刊
TETRAHEDRON LETTERS
卷 49, 期 47, 页码 6613-6616出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2008.09.019
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资金
- National Institutes of Health [HL25848, CA103823]
- Guthikonda Fellowship
- Bristol-Myers Squibb Graduate Fellowship
- Sylvia & Victor Fourman Fellowship
- Eli Lilly
- National Science Foundation [CHE-0619638]
We describe here a novel alpha,beta-unsaturated nitrone-aryne [3+2] cycloaddition. The resulting benzoisoxazolines underwent N-O bond reduction-elimination-electrocyclization sequence to furnish a variety of polysubstituted 2H or 2-alkylated-1-benzo-pyrans. The application of this methodology was further demonstrated in the synthesis of the oxa[3.2.1]octene moiety of cortistatin A. (C) 2008 Elsevier Ltd. All rights reserved.
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