(3S,6S)-3,6-diisobutylpiperazin-2-one 、 5-(4-Chloro-3-fluorophenyl)isoxazole-3-carboxylic acid 、
(3S,6S)-4-cinnamoyl-3,6-diisobutylpiperazin-2-one 以to furnish 134 (78 mg, 76% yield) as a white solid的产率得到(3S,6S)-4-(5-(4-chloro-3-fluorophenyl)isoxazole-3-carbonyl)-3,6-diisobutylpiperazin-2-one