(3R,6S)-6-phenyl-3-thiophen-2-yl-piperazin-2-one 、
5-(4-氟苯基)-1,2,4-噁二唑-3-羧酸 、
(3S,6S)-4-cinnamoyl-3,6-diisobutylpiperazin-2-one 以to furnish compound 472 (45 mg, 52% yield) as a colorless solid的产率得到(3R,6S)-4-(5-(4-fluorophenyl)-1,2,4-oxadiazole-3-carbonyl)-6-phenyl-3-(thiophen-2-yl)piperazin-2-one