N-(2,2-dimethyl-[1,3]dioxan-5-yl)-guanidine   、                                                                                      
2-(5-iodo-2-isopropyl-4-methoxy-phenoxy)-3-phenylamino-acrylonitrile                                                                                                                                                              在
                                                                                                                                                                                 
potassium carbonate                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
正丁醇                                                                                  为溶剂,
                                                                                                                                                    反应 6.0h,
                                                                                                                以86.3%的产率得到N2-(2,2-dimethyl-[1,3]dioxan-5-yl)-5-(5-iodo-2-isopropyl-4-methoxy-phenoxy)-pyrimidine-2,4-diamine