Two new routes to the C19C26 tetrahydrofuran fragment of the acyl tetronic acid ionophore tetronasin (ICI M139603)
摘要:
Two highly efficient and complementary synthetic routes to the C19-C26 tetrahydrofuran fragment (2) of the novel acyltetronic acid ionophore antibiotic tetronasin (ICI 139603) (1) are described to provide multigramme quantities of the required product.
Two new routes to the C19C26 tetrahydrofuran fragment of the acyl tetronic acid ionophore tetronasin (ICI M139603)
作者:Geert-Jan Boons、Dearg S. Brown、J.Andrew Clase、Ian C. Lennon、Steven V. Ley
DOI:10.1016/s0040-4039(00)76542-7
日期:1994.1
Two highly efficient and complementary synthetic routes to the C19-C26 tetrahydrofuran fragment (2) of the novel acyltetronic acid ionophore antibiotic tetronasin (ICI 139603) (1) are described to provide multigramme quantities of the required product.
Synthesis of the acyltetronic acid ionophore tetronasin (ICI M139603)
作者:Steven V. Ley、Dearg S. Brown、J. Andrew Clase、Antony J. Fairbanks、Ian C. Lennon、Helen M. I. Osborn、Elaine S. E. StokeséOwen、David J. Wadsworth
DOI:10.1039/a804170i
日期:——
preparation of tetronasin 1, an acyltetronicacid ionophore demonstrating antibiotic, antiparasitic and growth promotion in ruminants is described. The key step involves a metal mediated cyclization reaction which creates two rings and four new stereocentres in a highly efficient manner. The configurations of three of these stereocentres are as required for the synthesis of tetronasin. The remaining stereocentre