Asymmetric synthesis of the core of AMPTD, the key amino acid of microsclerodermins F-I
摘要:
We report a stereoselective synthesis of the five consecutive stereocenters of AMPTD in seven steps. Highlights include an Evans glycolate aldol reaction, the use of a Weinreb amide as an aldehyde masking group, and a Mannich reaction with an Ellman-type chiral sulfimine. (C) 2009 Elsevier Ltd. All rights reserved.
Lactones represented by the formula
2
a
or
2
b:
are provided, where each Ph is, independently, an unsubstituted or substituted phenyl group. These lactones are suitable for the synthesis of various α-hydroxy acids and 1,2-diols.
Asymmetric synthesis of the core of AMPTD, the key amino acid of microsclerodermins F-I
作者:Cameron M. Burnett、Robert M. Williams
DOI:10.1016/j.tetlet.2009.06.144
日期:2009.9
We report a stereoselective synthesis of the five consecutive stereocenters of AMPTD in seven steps. Highlights include an Evans glycolate aldol reaction, the use of a Weinreb amide as an aldehyde masking group, and a Mannich reaction with an Ellman-type chiral sulfimine. (C) 2009 Elsevier Ltd. All rights reserved.