(3S,6S)-6-(2-chloro-phenyl)-3-isobutyl-piperazin-2-one 、
5-(4-氟苯基)异噁唑-3-羧酸 、
( 3S,6S)-3,6-diiso-butyl-4-((1R,2R)-2-phenylcyclopropanecarbonyl)piperazin-2-one 以to furnish compound 352 (69 mg, 86% yield) as a white solid的产率得到(3S,6S)-6-(2-chlorophenyl)-4-(5-(4-fluorophenyl)isoxazole-3-carbonyl)-3-isobutyl-piperazin-2-one