Hutchison JM, Gibson AS, Williams DT, McIntosh MC. Synthesis of the C21-C34 fragment of antascomicin B.
Tetrahedron Lett 2011;
52:6349-6351. [PMID:
22199407 PMCID:
PMC3244276 DOI:
10.1016/j.tetlet.2011.09.027]
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Abstract
The C21-C34 fragment of the potent FKBP12-binding macrolide antascomicin B was prepared using Ireland-Claisen and allylic diazene rearrangements to establish the C26/C27 and the C23 stereocenters, respectively. Directed hydrogenation installed the C29 β-configuration. The fragment possesses 7 of the 11 fixed stereocenters contained in the natural product.
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