XK 213

NSC 357683

echinosporin

Antibiotic XK 213

Echinosporin (Streptomyces)

(1S)-1β,4aβ,5,7aβ-Tetrahydro-5β-hydroxy-8-oxo-1α,5α-(epoxymethano)cyclopenta[c]pyran-3-carboxamide