67705-19-5

(1aS,2S,4aR,6aS,6bR,7aS,8S,10aR,12aS,12bR)-8-(acetyloxy)-5,11-dioxo-2,4,6b,7a,8,10,12a,12b-octahydro-1aH,6aH-4a,10a-epidithiobisoxireno[g,g']pyrazino[1,2-a:4,5-a']diindol-2(5H,11H)-yl butanoate