A double alkylation—ring closing metathesis approach to spiroimines
摘要:
As part of a programme directed towards the synthesis of the marine toxins, the spirolides and gymnodimine, a convenient synthesis of the key bicyclic spiroimine ring systems has been developed. The method involves double alkylation of a simple lactam, Grubbs ring closing metathesis of the resultant dialkylated lactam then reduction of the lactam to an imine. (C) 2004 Elsevier Ltd. All rights reserved.
A double alkylation—ring closing metathesis approach to spiroimines
作者:Margaret A Brimble、Michael Trzoss
DOI:10.1016/j.tet.2004.04.059
日期:2004.6
As part of a programme directed towards the synthesis of the marine toxins, the spirolides and gymnodimine, a convenient synthesis of the key bicyclic spiroimine ring systems has been developed. The method involves double alkylation of a simple lactam, Grubbs ring closing metathesis of the resultant dialkylated lactam then reduction of the lactam to an imine. (C) 2004 Elsevier Ltd. All rights reserved.
Synthesis of Spirocyclic Imines: Key Pharmacophores in the Shellfish Toxins Spirolides and Gymnodimine
作者:Margaret A. Brimble、Michael Trzoss
DOI:10.1055/s-2003-41481
日期:——
The efficient synthesis of several spirocyclic imines of similar structure to that present in the shellfish toxins, the spirolides and gymnodimine, is described. The key steps involved double α-alkylation of simple lactam starting materials, Grubbs’ ring closing metathesis of the resultant bis-alkylated lactams and LiEt3BH reduction of the TEOC protected lactams to imines.