Leinamycin

(2′R,3R,4R,9′E,11′R,13′E,15′Z)-4,11′-Dihydroxy-2′,4,9′-trimethyl-4′H,5H,12′H-spiro[1,2-dithiolane-3,6′-[19]thia[3,20]diazabicyclo[15.2.1]icosa[1(20),9,13,15,17]pentaene]-4′,5,12′-trione 2-oxide

Leinamycin

Spiro[1,2-dithiolane-3,6′-[19]thia[3,20]diazabicyclo[15.2.1]eicosa[1(20),9,13,15,17]pentaene]-4′,5,12′-trione, 4,11′-dihydroxy-2′,4,9′-trimethyl-, 2-oxide, (2′R,3R,4R,9′E,11′R,13′E,15′Z)-

Streptomyces antibiotic DC-107