tert-Butyl-5-((4-(5-(3-chloro-4-ethoxyphenyl)-1,2,4-oxadiazol-3-yl)-1H-indol-1-yl)methyl)-2,2-dimethyl-1,3-dioxan-5-ylcarbamate   、                                                                                      
tert-butyl 5-((4-(5-(3,4-diethoxyphenyl)-1,2,4-oxadiazol-3-yl)indolin-1-yl)methyl)-2,2-dimethyl-1,3-dioxan-5-ylcarbamate                                                                                                                                                                                                                                                                                                          以the identical process afforded the title compound in 83.3% yield的产率得到2-amino-2-((4-(5-(3-chloro-4-ethoxyphenyl)-1,2,4-oxadiazol-3-yl)-1H-indol-1-yl)methyl)propane-1,3-diol