. Author manuscript; available in PMC: 2014 Jul 8.
Published in final edited form as: Tetrahedron. 2013 Jul 8;69(27-28):10.1016/j.tet.2013.04.049. doi: 10.1016/j.tet.2013.04.049
© 2013 Elsevier Ltd. All rights reserved.
Scheme 10.
Lactone formation.