3-氨基吡啶   、                                                                                      
methyl 1-(2-cyclopropylethyl)-5-({[2-(ethyloxy)-2-oxoethyl]amino}carbonyl)-2,4-dihydroxy-6-oxo-1,6-dihydro-3-pyridinecarboxylate                                                                                                                                                              在
                                                                                                                                                                                 
乙醇   、                                                                                                  
sodium hydroxide   、                                                                                                  
乙酸乙酯   、                                                                                                  
盐酸   、                                                                                                  
溶剂黄146                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
氯仿                                                                                  为溶剂,
                                                                                                                                                    反应 0.5h,
                                                                                                                以to give N-({1-(2-cyclopropylethyl)-4,6-dihydroxy-2-oxo-5-[(3-pyridinylamino)carbonyl]-1,2-dihydro-3-pyridinyl}carbonyl)glycine (190 mg, 0.456 mmol, 58.2% yield) 1H NMR (400 MHz, DMSO-d6) δ ppm 12.44 (br. s., 2H), 9.77 (s, 1H), 9.23 (d, J=2.27 Hz, 1H), 8.59 (dd, J=5.31, 1.01 Hz, 1H), 8.54 (d, J=8.59 Hz, 1H), 7.91 (dd, J=8.59, 5.56 Hz, 1H), 4.08 (s, 2H), 4.04 (t, 2H), 1.48 (dt, J=7.16 Hz, 2H), 0.61-0.78 (m, 1H), 0.41 (dt, J=7.96, 5.68, 4.04 Hz, 2H), 0.03 (dt, J=5.12, 4.42 Hz, 1H)的产率得到N-({1-(2-cyclopropylethyl)-4,6-dihydroxy-2-oxo-5-[(3-pyridinylamino)carbonyl]-1,2-dihydro-3-pyridinyl}carbonyl)glycine