4-[(1S)-2-{[(1,1-dimethylethyl)(dimethyl)silyl]oxy}-1-(hydroxymethyl)ethyl]-6-(methyloxy)-1,4-dihydropyrido[2,3-b]pyrazin-3(2H)-one                                                                                                                                                              在
                                                                                                                                         
二氧化锰                                                                                                                                                                                                                               正庚烷   、                                                                                                  
乙酸乙酯                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
二氯甲烷                                                                                  为溶剂,
                                                                                                                                                    反应 1.0h,
                                                                                                                以to give of 451.6 g (66%) of 4-[(1S)-2-{[(1,1-dimethylethyl)(dimethyl)silyl]oxy}-1-(hydroxymethyl)ethyl]-6-(methyloxy)pyrido[2,3-b]pyrazin-3(4H)-one的产率得到4-[(1S)-2-{[(1,1-dimethylethyl)(dimethyl)silyl]oxy}-1-(hydroxymethyl)ethyl]-6-(methyloxy)pyrido[2,3-b]pyrazin-3(4H)-one