1990 Volume 43 Issue 1 Pages 38-42
The structures of WSl358A1 and Bl, new dehydropeptidase inhibitors isolated from Streptomyces parvulus subsp. tochigiensis No. 1358, have been established to be 2-hydroxy-2-hydroxyaminocarbonyl-3-methylglutaric acid (1) and 2-hydroxy-2-hydroxyaminocarbonylglutaric acid (2), respectively, on the basis of spectroscopic evidence and synthesis of the racemates.