7-Allyloxy-2,9,9-trimethyl-9,9a-dihydro-2H-2-aza-benzo[cd]azulene-1,6-dione   、                                                                                      
乙炔基溴化镁                                                                                                                                                                                                                                                                                                          生成                                                 (6R,8S,9aR)-8-Allyl-6-ethynyl-6-hydroxy-2,9,9-trimethyl-6,8,9,9a-tetrahydro-2H-2-aza-benzo[cd]azulene-1,7-dione   、                                                                                             (6R,8R,9aR)-8-Allyl-6-ethynyl-6-hydroxy-2,9,9-trimethyl-6,8,9,9a-tetrahydro-2H-2-aza-benzo[cd]azulene-1,7-dione