The molecule is a homodetic cyclic peptide containing L-Pro, D-Tyr, L-Ser, L-Asn and L-Gln as the amino acid residues. Isolated from an endophytic fungus, Epichloe typhina, it exhibits inhibitory activity toward the spore germination of Cladosporium phlei, a pathogenic fungus of the timothy plant. It has a role as an antifungal agent and a fungal metabolite. It is a homodetic cyclic peptide and a macrocycle.
3-[(3S,6S,9S,12S,15R,18S,22R,25S)-3,12,18-tris(2-amino-2-oxoethyl)-6-(hydroxymethyl)-15-[(4-hydroxyphenyl)methyl]-2,5,8,11,14,17,20,24-octaoxo-22-undecyl-1,4,7,10,13,16,19,23-octazabicyclo[23.3.0]octacosan-9-yl]propanamide