2H-​[1]​Benzopyrano[2',​3':6,​7]​naphth[2,​1-​g]​isoquinoline-​1,​14-​dione, 4-​chloro-​6,​7,​10,​11,​12,​13-​hexahydro-​5,​10,​12,​13,​15,​16-​hexahydroxy-​8-​methoxy-​2-​methyl-​3-​propyl-​, (10S,​12S,​13R)​-