Young & Thompson
Calpain inhibitor cystamidin A and its production
 A novel calpain inhibitory active and low molecular weight substance, cystamidin A and its production are provided. Cystamidin A of the following formula ##STR1## was produced by culturing Streptomyces sp. KP-1241 FERM BP-41 71 in a nutrient medium and isolating the active substance from the cultured mass. 
The Kitasato Institute
C C C C A
C12R C12N C12P C07D A61P
additional inventional inventional inventional inventional
Haruo Kazuro Jing R. Satoshi
Tanaka Shiomi Liu Omura