Studies directed towards the total synthesis of the antibiotic macrodiolide tartrolon: EPC synthesis of the protected seco acid
摘要:
An efficient synthesis of the protected seco acid 2 of the antibiotic macrodiolide tartrolon 1 is described. Key steps are a substrate controlled aldol-reaction, a Johnson-Claisen rearrangement, and a Horner-Wadsworth-Emmons olefination with subsequent Corey-Bakshi-Shibata (CBS) reduction. (C) 1998 Elsevier Science Ltd. All rights reserved.
Studies directed towards the total synthesis of the antibiotic macrodiolide tartrolon: EPC synthesis of the protected seco acid
摘要:
An efficient synthesis of the protected seco acid 2 of the antibiotic macrodiolide tartrolon 1 is described. Key steps are a substrate controlled aldol-reaction, a Johnson-Claisen rearrangement, and a Horner-Wadsworth-Emmons olefination with subsequent Corey-Bakshi-Shibata (CBS) reduction. (C) 1998 Elsevier Science Ltd. All rights reserved.
Horner-Wadsworth-Emmons Reactions as a Facile Entry to Biogenetic Key Substructures
作者:Johann Mulzer、Andreas Sieg、Christoph Brücher、Dieter Müller、Harry J. Martin
DOI:10.1055/s-2005-863705
日期:——
One-pot Horner-Wadsworth-Emmons reactions are used to synthesize α,β-enones with two configurationally independent stereogenic centers. These intermediates are used for the construction of polyketide and monosaccaride fragments. In particular, novel approaches to the branched pentoses mycarose and arcanose are described.