4-氨基吡啶   、                                                                                      
trans-4-{2-[(2-methoxy-ethyl)-methyl-amino]-7-methyl-8-oxo-7,8-dihydro-purin-9-ylmethyl}-cyclohexane lithium carboxylate                                                                                                                                                              在
                                                                                                                                                                                 
三乙胺   、                                                                                                  N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
N,N-二甲基甲酰胺                                                                                  为溶剂,
                                                                                                                                                    反应 0.5h,
                                                                                                                以26 mg的产率得到trans-4-{2-[(2-methoxy-ethyl)-methyl-amino]-7-methyl-8-oxo-7,8-dihydro-purin-9-ylmethyl}-cyclohexanecarboxylic acid pyridine-4-ylamide