2H-Naphtho(2,3-b)pyran-5,10-dione, 3,4a-dichloro-10a-((3-chloro-6-hydroxy-2,2,6-trimethylcyclohexyl)methyl)-3,4,4a,10a-tetrahydro-6,8-dihydroxy-2,2-dimethyl-, (3R-(3alpha,4abeta,10abeta(1S*,3S*,6S*)))-