5-[3-(3-formyl-2-methylphenyl)-1,2,4-oxadiazol-5-yl]-2-[(1-methylethyl)oxy]benzonitrile   、                                                                                      
间氯过氧苯甲酸                                                                                                                                                              在
                                                                                                                                                                                 
乙酸乙酯   、                                                                                                  
水   、                                                                                                  
3-(5-{3-cyano-4-[(1-methylethyl)oxy]phenyl}-1,2,4-oxadiazol-3-yl)-2-methylbenzoic acid                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
四氢呋喃                                                                                  为溶剂,
                                                                                                                                                    反应 5.5h,
                                                                                                                以to afford the desired compound 3-(5-{3-cyano-4-[(1-methylethyl)oxy]phenyl}-1,2,4-oxadiazol-3-yl)-2-methylbenzoic acid (29 mg)的产率得到3-(5-{3-cyano-4-[(1-methylethyl)oxy]phenyl}-1,2,4-oxadiazol-3-yl)-2-methylbenzoic acid