(3S,6S)-4-cinnamoyl-3,6-diisobutylpiperazin-2-one 、
(3S,6S)-6-(2-chloro-phenyl)-3-isobutyl-piperazin-2-one 、
5-(4-氟苯基)-1,2,4-噁二唑-3-羧酸 以to give the product 371 as a white solid的产率得到(3S,6S)-6-(2-chlorophenyl)-4-(5-(4-fluorophenyl)-1,2,4-oxadiazole-3-carbonyl)-3-isobutylpiperazin-2-one