Determination of the absolute stereochemistry of Etzionin
摘要:
The absolute configuration of Etzionin, a marine peptide-like compound isolated in 1989 from a red tunicate collected from the Red Sea has been determined by a combination of synthetic and spectroscopic procedures. Finally, its absolute stereochemistry has been established as 3S,3'R. (C) 2003 Elsevier Science Ltd. All rights reserved.
Determination of the absolute stereochemistry of Etzionin
摘要:
The absolute configuration of Etzionin, a marine peptide-like compound isolated in 1989 from a red tunicate collected from the Red Sea has been determined by a combination of synthetic and spectroscopic procedures. Finally, its absolute stereochemistry has been established as 3S,3'R. (C) 2003 Elsevier Science Ltd. All rights reserved.
The synthesis of chiral (2-substituted-2-aminoethyl)allylsilanes by cerium mediated trimethylsilylmethylmagnesium chloride addition to the ester group of non racemic chiral β-aminoesters is described.
A highly diastereoselective synthesis of 2,6-cis-disubstituted-4-methylenepiperidines based on a Mannich type intramolecular cyclization of an allylsilane on an iminium ion is described. The synthetic potential of this methodology is demonstrated by the enantioselective synthesis of two natural piperidine alkaloids: (+)-alkaloid 241 D and (+)-isosolenopsin A. (C) 2005 Elsevier Ltd. All rights reserved.
Determination of the absolute stereochemistry of Etzionin
作者:Esther Vaz、Miryam Fernandez-Suarez、Luis Muñoz
DOI:10.1016/s0957-4166(03)00403-8
日期:2003.7
The absolute configuration of Etzionin, a marine peptide-like compound isolated in 1989 from a red tunicate collected from the Red Sea has been determined by a combination of synthetic and spectroscopic procedures. Finally, its absolute stereochemistry has been established as 3S,3'R. (C) 2003 Elsevier Science Ltd. All rights reserved.