VERWENDUNG VON PYRROTHINDERIVATEN.

摘要

The use of pyrrothine derivs. of formula (I) for inhibiting allergen-induced degranulation of peripheral leucocytes is new. R1 and R3 = H or Me; R2 = H, Me or 1-5C acyl; X and Y = H, equivalent of physiologically acceptable cation, or together are a single bond. Opt. a mixt. of (I) recovered from Streptoverticillium thioluteum (DSM 40027) or its culture broth is used.