benzyl 2-(3-(2-tert-butoxy-2-oxoethyl)-5-methyl-2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)acetate                                                                                                                                                              在
                                                                                                                                                                                 palladium 10% on activated carbon   、                                                                                                  
氢气                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
乙酸乙酯                                                                                  为溶剂,
                                                                                                                                                                                        以89%的产率得到2-(3-(2-tert-butoxy-2-oxoethyl)-5-methyl-2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)acetic acid