(S,E)-10-(tert-butyldimethylsilyloxy)-6-(3-(tert-butyldimethylsilyloxy)propyl)-3-methyl-5-oxodec-6-enal   、                                                                                      
(4aR,9aS)-4,4a,9,9a-tetrahydroindeno[2,1-b][1,4]oxazin-2(3H)-one                                                                                                                                                                                              以
                                                                                         
甲苯                                                                                  为溶剂,
                                                                                                                                                    反应 12.5h,
                                                                                                                以81.5%的产率得到(5aS,7aR,8R,8aR,11S,12aR,13aR)-8,8a-bis(3-((tert-butyldimethylsilyl)oxy)propyl)-11-methyl-5,5a,8,8a,10,11,12,12a-octahydroindeno[1',2':5,6][1,4]oxazino[4,3-a]indole-7,9(7aH,13aH)-dione