3-(benzyloxy)-4-(trifluoromethyl)phenylboronic acid   、                                                                                      
6-溴-5-羟基-2-吡啶羧酸甲酯                                                                                                                                                                                                                                                                                                          以obtain 4.38 g of methyl 6-[3-(benzyloxy)-4-(trifluoromethyl)phenyl]-5-hydroxypyridine-2-carboxylate in the form of a white solid的产率得到methyl 6-[3-(benzyloxy)-4-(trifluoromethyl)phenyl]-5-hydroxypyridine-2-carboxylate