(6R,16R)-10-Chloro-6,7,9,16-tetrahydro-11,13,15-trihydroxy-3-methoxy-1,6,9,9-tetramethyl-6,16-epoxy-14H-anthra[2,3-d][1]benzoxocin-14-one

(6R,16R)-10-Chloro-6,7,9,16-tetrahydro-11,13,15-trihydroxy-3-methoxy-1,6,9,9-tetramethyl-6,16-epoxy-14H-anthra[2,3-d][1]benzoxocin-14-one