. Author manuscript; available in PMC: 2013 Aug 15.
Published in final edited form as: Bioorg Med Chem Lett. 2012 Jul 5;22(16):5177–5181. doi: 10.1016/j.bmcl.2012.06.076
© 2012 Elsevier Ltd. All rights reserved.
Scheme 4.
GCA-8 Inspired analogs.