First total synthesis and stereochemical revision of okaramine M
摘要:
We describe the first total synthesis of the reported and revised structures of okaramine M (1 and 7) through the Ugi three-component reaction of pyrroloindole imine 10 with p-methoxyphenyl isonitrile and N-Boc-L-tryptophan, followed by cyclization and epimerization. (C) 2010 Elsevier Ltd. All rights reserved.