tert-butyl 2,2-dimethyl-5-((5-((5-propylbenzofuran-2-yl)methoxy)indolin-1-yl)methyl)-1,3-dioxan-5-ylcarbamate 、 Butyl 2,2-dimethyl-5-((4-(5-(6-propylpyridin-3-yl)-1,2,4-oxadiazol-3-yl)indolin-1-yl)methyl)-1,3-dioxan-5-ylcarbamate 以the identical process afforded the title compound in 45% yield的产率得到2-amino-2-((5-((5-propylbenzofuran-2-yl)methoxy)indolin-1-yl)methyl)propane-1,3-diol