英文名称:2,5-Piperazinedione,3-[(1R)-1-[(3R)-2,3-dihydro-3-hydroxy-1-methyl-2-oxo-1H-indol-3-yl]ethyl]-6-[(methylthio)methyl]-,(3S,6R)-; 2,5-Piperazinedione,3-[1-(2,3-dihydro-3-hydroxy-1-methyl-2-oxo-1H-indol-3-yl)ethyl]-6-[(methylthio)methyl]-,[3S-[3a[S*(S*)],6a]]-; Maremycin B