WS75624 A and B, New Endothelin Converting Enzyme Inhibitors Isolated from Saccharothrix sp. No. 75624

II. Structure Elucidation of WS75624 A and B

Abstract

The structures of WS75624 A and B, novel endothelin converting enzyme inhibitors, were determined to be 1 and 2A, respectively, by a combination of chemical evidence and a series of 2D NMR spectral analyses.