S-isopropyl 2,2-dichloro-2-(1,1-dichloro-2-oxo-3-tosyl-2,3,5,9b-tetrahydro-1H-benzo[e]indol-5-yl)ethanethioate                                                                                                                                                                                              以
                                                                                         
正己烷   、                                                                                         
乙酸乙酯                                                                                  为溶剂,
                                                                                                                                                                                        以19%的产率得到S-isopropyl 2,2-dichloro-2-((5R,9bS)-1,1-dichloro-2-oxo-3-tosyl-2,3,5,9b-tetrahydro-1H-benzo[e]indol-5-yl)ethanethioate