U-19718

Kalamycin

NSC 137443

Kalafungin

3,3aα,5,11bα-Tetrahydro-7-hydroxy-5α-methyl-2H-furo[3,2-b]naphtho[2,3-d]pyran-2,6,11-trione

(3AS,5S,11bS)-7-Hydroxy-5-methyl-3aH-benzo[g][1,3]-dioxolo[4,5-c]isochromene-2,6,11(5H,11bH)-trio