Synthesis of 3-hydroxyindolin-2-one alkaloids, (±)-donaxaridine and (±)-convolutamydines A and E, through enolization–Claisen rearrangement of 2-allyloxyindolin-3-ones
作者:Tomomi Kawasaki、Miyuki Nagaoka、Tomoko Satoh、Ayako Okamoto、Rie Ukon、Atsuyo Ogawa
DOI:10.1016/j.tet.2004.02.031
日期:2004.4
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.