NOVEL ANTIBIOTICS MC90221 AND MC90221* AND METHOD OF PREPARING THE SAM E

摘要

PURPOSE:Antibiotics MC902-1 and -1'; for example, MC902-1 has the following properties; dec, pt., 233-235 deg.C; specific rotation [alpha]<2>60; -121 deg.C; analysis, C 50.10%, H 7.21%, N 16.45%, O 21.78%, and S 3.80%; DV-absorption, lambda max 218nm; soluble in dimethylsulfoxide,etc. and slightly soluble in water, alkanols, etc.; positive for Lydon-Smith reaction and negative for the ninlaydrin reaction; hydrolyzates are glycine, leucine, and cystine