This invention relates to new polypeptide compound represented by general formula
(I), wherein R1, R2, R3, R4, R5
and R6 are as defined in the description or a salt thereof which
has antimicrobial activities (especially, antifungal activities), inhibitory activity
on -1,3-glucan synthase, to process for preparation thereof, to a pharmaceutical
composition comprising the same, and to a method for prophylactic and/or therapeutic
treatment of infectious diseases including Pneumocystis carinii infection
(e.g. Pneumocystis carinii pneumonia) in a human being or an animal.
