(S)-3-(tert-butyldimethylsilyloxy)-9,10-dihydroxy-6-methyl-8-methoxymethoxy-3,4-dihydroanthracen-1(2H)-one                                                                                                                                                              在
                                                                                                                                                                                 
manganese(IV) oxide                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
氘代氯仿   、                                                                                         
二氯甲烷                                                                                  为溶剂,
                                                                                                                                                    反应 1.0h,
                                                                                                                生成                                                 (3R,3aS,3bR,4R,12S)-3,4-bis(tert-butyldimethylsilyloxy)-1,7-dihydroxy-8,17-bis(methoxymethoxy)-10,15-dimethyl-3,3a,4,5-tetrahydro-2H-dibenzo[c,mn]naphtho[2,3-g]xanthene-6,13,18(3bH)-trione