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Paper
Org. Biomol. Chem., 2009, 7, 4052 - 4056, DOI: 10.1039/b910632d
A divergent strategy to the withasomnines
Robert S. Foster, Jianhui Huang, Jérôme F. Vivat, Duncan L. Browne and Joseph P. A. Harrity
A concise synthesis of three members of the withasomnine family of natural products is reported. The synthesis features a regioselective sydnone–alkynylboronate cycloaddition followed by Suzuki cross coupling and silyl group removal, and marks the first divergent approach to this family of pyrazole based natural products.
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