4-methyl-N-(2-pyridin-2-ylethyldiazenyl)aniline   、                                                                                      
Azirino[2',3'_3,4]pyrrolo[1,2-.α.]indole-4,7-dione, 1,1a,2,8,8a,8b-hexahydro-6-hydroxy-8-(hydroxymethyl)-8a-methoxy-5-methyl-, 8-carbamate                                                                                                                                                                                              以
                                                                                         
甲醇   、                                                                                         
二氯甲烷                                                                                  为溶剂,
                                                                                                                                                                                        以31%的产率得到7-<(2-(2-pyridyl)ethyl)oxy>-9a-methoxymitosane