2,5-dihydro-3-(1H-indol-3-yl)-4-[1-(2-deoxy-3,4,6-tri-O-acetyl-α-D-glucopyranosyl)-1H-indol-3-yl]-1H-pyrrole-2,5-dione                                                                                                                                                              在
                                                                                                                                                                                 
air   、                                                                                                  
碘                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
苯                                                                                  为溶剂,
                                                                                                                                                    反应 8.0h,
                                                                                                                以68%的产率得到6-methyl-12-(2-deoxy-3,4,6-tri-O-acetyl-α-D-glucopyranosyl)-6,7,12,13-tetrahydroindolo[2,3-a]pyrrolo[3,4-c]carbazole-5,7-dione