methyl 4-({(3-methoxybenzyl)[(4-chlorophenyl)sulfonyl]amino}methyl)benzoate   、                                                                                      
4-chloro-N-(4-cyanobenzyl)benzenesulfonamide   、                                                                                      
5-(叔丁基)-3-氯甲基-1,2,4-恶二唑                                                                                                                                                                                                                                                                                                          以the title compound was obtained as white solid in 79% yield的产率得到4-chloro-N-(4-cyanobenzyl)-N-(5-tert-butyl-1,2,4-oxadiazol-3-ylmethyl)benzenesulfonamide