2-(4-{1-[(tert-butoxycarbonyl)amino]cyclobutyl}phenyl)-3-phenyl-1,6-naphthyridin-5-yl tert-butyl carbonate                                                                                                                                                                                              以
                                                                                         
甲醇                                                                                  为溶剂,
                                                                                                                                                    反应 0.25h,
                                                                                                                以to give tert-butyl {1-[4-(5-hydroxy-3-phenyl-1,6-naphthyridin-2-yl)phenyl]cyclobutyl}carbamate (12-2) as a white solid的产率得到tert-butyl {1-[4-(5-hydroxy-3-phenyl-1,6-naphthyridin-2-yl)phenyl]cyclobutyl}carbamate