(3S,6S)-3,6-diisobutyl-4-((5-phenylisoxazol-3-yl)methyl)piperazin-2-one 、
(3S,6S)-3,6-diisobutylpiperazin-2-one 、
5-(2-呋喃基)异噁唑-3-甲醛 以to give the product 201 (41 mg, 24.3% yield) as a pale yellow solid的产率得到(3S,6S)-4-((5-(furan-2-yl)isoxazol-3-yl)methyl)-3,6-diisobutylpiperazin-2-one