Organic Letters
Letter
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hydrolysis under the reaction conditions.
Notes
The authors declare no competing financial interest.
ACKNOWLEDGMENTS
■
Financial support from UCSB and Amgen is gratefully
acknowledged. We thank Dr. Guang Wu (UCSB) for X-ray
analysis. We also thank Patrick Batoon and O. David Sparkman
of the University of the Pacific Mass Spectrometry facility and
Professor Martin Schnermann for helpful discussions. NMR
instrumentation was supported by an NIH Shared Instrumen-
tation grant (SIG) (No. 1S10OD012077-01A1).
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