3-((Z)-((R)-2-amino-7-(4-fluoro-2-(6-methoxypyridin-2-yl)phenyl)-4-methyl-7,8-dihydropyrido[4,3-d] pyrimidin-5(6H)-ylidene)aminooxy)dihydrofuran-2(3H)one   、                                                                                      
ammonia methanol                                                                                                                                                              在
                                                                                                                                                                                 
2-((Z)-((R)-2-amino-7-(4-fluoro-2-(6-methoxypyridin-2-yl)phenyl)-4-methyl-7,8-dihydropyrido[4,3-d]pyrimidin-5(6H)-ylidene)aminooxy)-4-hydroxybutanamide                                                                                                                                  作用下,
                                                                                                                                                                                        反应 16.0h,
                                                                                                                以to afford the title compound 2-((Z)-((R)-2-amino-7-(4-fluoro-2-(6-methoxypyridin-2-yl)phenyl)-4-methyl-7,8-dihydropyrido[4,3-d]pyrimidin-5(6H)-ylidene)aminooxy)-4-hydroxybutanamide (13.2 mg, 89%) as a white solid的产率得到2-((Z)-((R)-2-amino-7-(4-fluoro-2-(6-methoxypyridin-2-yl)phenyl)-4-methyl-7,8-dihydropyrido[4,3-d]pyrimidin-5(6H)-ylidene)aminooxy)-4-hydroxybutanamide