3,11a-Epidithio-11aH-pyrazino(1',2':1,5)pyrrolo(2,3-b)indole-1,4-dione,9-chloro-2,3,5a,6,10b,11-hexahydro-10b,11-dihydroxy-7,8-dimethoxy-2,3-dimethyl-, (3R,5aR,10bS,11R,11aR)- 69799-25-3