Flavofungin B

Flavofungin II

32-sec-Butyl-14,16,18,20,22,24,26,28-octahydroxy-15,31-dimethyl-1-oxacyclodotriaconta-3,5,7,9,11,29-hexen-2-one

14,16,18,20,22,24,26,28-Octahydroxy-15,31-dimethyl-32-(1-methylpropyl)oxacyclodotriacontane-3,5,7,9,11,29-hexaene-2-one