名称:
Synthesis of 3-hydroxyindolin-2-one alkaloids, (±)-donaxaridine and (±)-convolutamydines A and E, through enolization–Claisen rearrangement of 2-allyloxyindolin-3-ones
摘要:
Claisen rearrangement triggered by enolization of 2-allyloxyindolin-3-ones with DBU was performed in order to prepare 3-allyl-3-hydroxyindolin-2-ones. Total synthesis of 3-hydroxyindolin-2-one alkaloids, (+/-)-donaxaridine, as well as (+/-)-convolutamydines A and E , was achieved by transformation of the allyl moiety of 3-allyl-3-hydroxyindolin-2-ones. (C) 2004 Elsevier Ltd. All rights reserved.