tert-Butyl 1-(5-(ethoxycarbonyl)-2-(methylthio)pyrimidin-4-yl)-3-oxo-1,4-diazaspiro[5.5]undecane-4-carboxylate 1g

tert-Butyl 1-(5-(ethoxycarbonyl)-2-(methylthio)pyrimidin-4-yl)-3-oxo-1,4-diazaspiro[5.5]undecane-4-carboxylate 1g