Synthesis of the C21-C34 fragment of antascomicin B

by Hutchison, John Michael; Gibson, Andrew S.; Williams, David T.; McIntosh, Matt C.

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 beta-configuration. The fragment possesses 7 of the 11 fixed stereocenters contained in the natural product. (C) 2011 Elsevier Ltd. All rights reserved.

Journal
Tetrahedron Letters
Volume
52
Issue
48
Year
2011
Start Page
6349
ISBN/ISSN
1873-3581; 0040-4039
PMID
22199407
DOI
10.1016/j.tetlet.2011.09.027