Dehydromicrosclerodermin B and Microsclerodermin J: Total Synthesis and Structural Revision
作者:Ekaterina Y. Melikhova、Robert D. C. Pullin、Christian Winter、Timothy J. Donohoe
DOI:10.1002/anie.201604764
日期:2016.8.8
The totalsynthesis of dehydromicrosclerodermin B and microsclerodermin J is described. Efficient approaches to the unusual amino acids in the target molecules were developed on the basis of a Negishi coupling (for Trp-2-CO2 H) and Blaise reaction (for Pyrr). An incorrect assignment of the pyrrolidinone stereochemistry of both compounds was confirmed by synthesizing epimers of the proposed structures