New cyclic peptide compound, method to produce it, anti-infective agent, fraction containing antibiotic, antibiotic, method to produce antibiotic, antibiotic-producing microorganism and antibiotic produced by it

摘要

A cyclic peptide compound shown by the following formula (1) or a pharmaceutically acceptable salt thereof, ** Formula ** in R1 represents an acyl group having 7, 8 or 9 carbon atoms and optionally containing a substituent group ; R2 represents a methyl group or a hydrogen atom and R3 represents an ethyl group or a methyl group.