1 DWD (4s)-2'-(2-methylpropoxy)-7'-(pyrimidin-5-yl)spiro[1,3-oxazole-4,9'-xanthen]-2-amine 1.000 2 3LN (4s)-2'-(2,2-dimethylpropoxy)-7'-(pyrimidin-5-yl)spiro[1,3-oxazole-4,9'-xanthen]-2-amine 0.968 3 B7E Compound 28 0.706